CN104348158B - In the integrated automatism voltage control in ground county, coordinate the automatic generation method of control zone - Google Patents
In the integrated automatism voltage control in ground county, coordinate the automatic generation method of control zone Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The automatic generation method that the present invention relates to coordinate in the integrated automatism voltage control in ground county control zone, belongs to power system automatism voltage control technical field. The method comprises: the model of the 110kV electrical network that generation area power grid 220kV transformer connects, and generate coordination control zone; The 35kV transformer station that area power grid 220kV step down side winding is connected joins in the coordination control zone having generated; Generate the model of the 35kV electrical network at county level that area power grid 110kV transformer connects, and produce 110kV and coordinate sub-control zone; The 110kV of generation is coordinated to sub-control zone to add in the coordination control zone having generated. The inventive method can be formed for the coordination control zone of the integrated automatism voltage control in ground county fast and automatically, and the requirement of reactive power/voltage control is coordinated by transformer station of county's electrical network the superior and the subordinate contentedly.
Description
Technical field
The invention belongs to power system automatism voltage control technical field, provide in the integrated automatism voltage control in Liao Di county, logicalCross and electrical network is carried out to multistage topological analysis automatically generate the method for control zone coordinated.
Background technology
Automatism voltage control (hereinafter to be referred as AVC, AutomaticVoltageControl) system is to realize power grid securityThe important means of (raising voltage stability margin), economic (reduction via net loss), high-quality (raising rate of qualified voltage) operation,Its general principle be by coordination control that generator reactive is exerted oneself, load tap changer and reactive-load compensation equipment, realize in electrical networkThe reasonable layout of reactive voltage.
The main website part of AVC system Power System Control Centers based on software program realize, this require its must with electricityThe management and running system of power system itself is consistent. Interconnection of Power Networks In China scale is very huge, and its operation is by layering and zoningMulti-stage scheduling mechanism is in charge of, and economizes (city) level dispatching of power netwoks control centre, (adjusting hereinafter to be referred as economizing) and area power gridDispatching control center (adjusting hereinafter to be referred as ground), county (district) level dispatching of power netwoks control centre (adjusting hereinafter to be referred as county) are whereinMore representational three scheduling ranks. Under normal circumstances, economize to adjust and be in charge of 500/220kV electrical network inside the province, ground is adjusted negative110 electrical networks in duty management area, county adjusts and is in charge of 35kV electrical network at county level.
In 35kV electrical network at county level, 35kV substation bus bar Control of Voltage is traditionally mainly relied on to 35kV transformer station valueThe member of class is manual to complete, and works complicated, and operational ton is large. Simultaneously due to lack with higher level adjust the coordination control of AVC, often makeBecome the frequent movement of reactive-load compensation equipment and load tap changer, and idle unreasonable between area power grid and County Power GridFlow. Along with the development of power system dispatching automation technique, in area power grid, start at present to build the ground integrated scheduling in countyAutomated system. Wang Yuqin " the integrated dispatching automation technical research in county and realization " (Shandong University's Master's thesis,2013) in describe main technical schemes and the implementation of ground county integrated dispatch automated system, Wu Tao in detailIn research and the design of the integrated dispatch automated system in county " " (Zhejiang University's Master's thesis, 2012), say in detailThe Wide-area Measurement Information collection of the integrated dispatch automated system in county and the key technology of data sharing legibly. Building at presentIn the integrated dispatch automated system in Di county, ground is adjusted has possessed 35kV electrical network at county level in the grid monitoring system of sideModel and running status; Meanwhile, along with the progressively raising of County Power Grid automatization level, the 35kV transformer station of County Power GridPossesses the condition that load tap changer and reactive-load compensation equipment are carried out to remote auto control. Adjust on ground and build county one, groundThe technical conditions of the automatic voltage powerless control system of body possess.
The control model of the integrated automatic voltage powerless control system in ground county has comprised the County Power Grid in area power grid and area,Taking ground, county's electrical network entirety safety economy high-quality as control target, can take into full account that area power grid and County Power Grid are tightElectrical link, take into full account the idle control device of County Power Grid, the area power grid overall situation including County Power GridOptimal Decision-making, thereby realize ground, county's electric network reactive-load voltage total tune control. Ensureing on the basis that voltage is qualified,Optimal Reactive Power flows, and significantly reduces number of equipment action, improves Reactive Power Margin and the voltage stability of electrical network, reduces network loss.This method has realized ground, the voltage-controlled coordination of county's electric network reactive-load, avoids again Liao county to adjust the independent AVC system of construction to makeThe overlapping investment becoming, has huge economic results in society.
The integrated automatic voltage control system in ground county is included on hardware configuration allocates AVC server, the maintenance work of puttingStand and monitor workstation, and allocate in each county the remote monitoring maintenance work station of putting. The control strategy of AVC is adjusted AVC by groundEach transformer station that 220kV, 110kV and 35kV were calculated and be directly issued to server centered, is carried out by monitoring system of electric substation.Due to the control object of ground county integrated A VC system comprised ground key degree 220kV, 110kV station in voltage adjusting device,And voltage adjusting device in the 35kV of county's key degree station, and these transformer stations interknit in electric Shang Shi the superior and the subordinate, rightResponse significantly, therefore needs the transformer stations at different levels that county's electrical network comprises over the ground to unify in the time calculating control strategy each otherConsider, realize the superior and the subordinate's reactive voltage and coordinate to control.
At present, in the Operation of Electric Systems of China, area and County Power Grid all adopt radiation mode to move, to area power grid andSpeech, has circuit and be connected to each other, and 110kV transformer station is only connected with higher level 220kV transformer station between its 220kV transformer station,Between 110kV transformer station, do not have circuit to be connected to each other; To County Power Grid, 35kV transformer station only connects with higher level 110kV transformer stationConnect, between 35kV transformer station, do not have circuit to be connected to each other. Under this method of operation, from 220kV transformer station high-voltage side busSet out, formed the radiation operation partitioned area containing the each electric pressure of 220kV-110kV-35kV transformer station.
Fig. 1 provided one typically, the method for operation of county electrical network. In figure, the root node of a radiation operation area isEconomize the 220kV bus of adjusting the 220kV high voltage side of transformer winding of electrical network to connect, it is by medium voltage side winding (110kV)Be connected subordinate ground with low-pressure side winding (35kV) and adjust electrical network: the 110kV bus that medium voltage side winding connects is drawn some 110kVCircuit, is connected to 110kV transformer station of subordinate; On the 35kV bus that low-pressure side winding connects, be connected to capacitor and reactor (figureIn not shown), in some cases, 35kV bus also can be drawn some 35kV circuits, is connected to county of subordinate and adjusts electricityThe 35kV transformer station of net, the interior low pressure 10kV bus of these 35kV transformer stations is connected to reactive apparatus. 220kV transformationDevice all disposes voltage adjustment of on-load tap (not shown).
In the 110kV transformer station of subordinate connecting by 110kV circuit at 220kV main transformer medium voltage side 110kV bus, oneAs transformer station's configuration three-winding transformer in situation, each winding voltage grade is 110kV/35kV/10kV, step down sideThe 10kV bus that winding connects is connected to the reactive apparatus such as capacitor, reactor, the 35kV that transformer medium voltage side winding connectsBus is drawn some 35kV circuits, is connected to 35kV transformer station of subordinate, the low pressure 10kV in these 35kV transformer stationsBus is connected with the reactive apparatus such as capacitor, reactor. Transformer in 110kV transformer station and 35kV at county level transformer station is equalDispose voltage adjustment of on-load tap.
Can see from above-mentioned analysis, from 220kV root bus, form tri-voltages across 220kV-110kV-35kVThe integral radiation shape operation area of grade. In this region, the transformer station of each electric pressure all has reactive voltage adjusting and establishesStandby, comprise transformer on-load voltage regulating tap and low-voltage side capacitor, reactor. In reactive power/voltage control, higher level's power transformationThe voltage-regulation of standing has significant impact to subordinate's substation bus bar voltage, and the idle adjusting of transformer station of subordinate becomes higher levelPower station idle has significant impact, carrying out in the integrated automatism voltage control in ground county, need to be using such region asVoltage-controlled object carries out entirety to be considered, the coordination control of transformer station of the superior and the subordinate in consideration of regional.
By in integrated above-mentioned ground county electric network model, from 220kV bus, the 110kV of subordinate, the 35kV comprising becomesThe complete area in power station, is defined as integrated coordination control zone, county, ground. In order to express easily, will coordinate control zoneRepresentForm for suc as formula (1):
Wherein:
220kV transformer, amounts to N platform, n=1.2.3.....N;
220kV bus that 220kV main transformer high-pressure side winding connects (by closed bus connection switch paired runningBus is merged into one, lower same), amount to H bar, h=1.2.3.....H;
The 110kV bus that 220kV main transformer medium voltage side winding connects amounts to M bar, m=1.2.3.....M.
The 35kV bus that 220kV main transformer low-pressure side winding connects amounts to L bar, l=1.2.3.....L.
The high-voltage side bus of the 110kV transformer station of subordinate connecting amounts to J bar, j=1.2.3.....J.
The high-voltage side bus of the 35kV transformer station of subordinate connecting amounts to P bar p=1.2.3.....P.
Each 110kV transformer station high-voltage side busThe 110-35kV subregion connecting, oneMay be withMore than one or multipleK=1.2.3.....K is K >=J.
And every sub regionsBe further defined as shown in formula (2):
110kV main transformer, amounts to N ' platform, n=1.2.3.....N '.
The 110kV bus that 110kV main transformer high-pressure side winding connects, amounts to H ' bar, h=1.2.3.....H '.
The 35kV bus that 110kV main transformer medium voltage side winding connects, amounts to M ' bar, m=1.2.3.....M '.
The high-voltage side bus of the 35kV transformer station of subordinate connecting amounts to J ＇ bar, p=1.2.3.....J ＇.
Because the method for operation of electrical network often changes, coordinate control zoneIn element along with the method for operation often occursChange, cannot set manually in advance. Therefore in AVC system, need automatically to generate in real time the ground integrated coordination control in countySubregionFind from disclosed document, the method that there is no at present can real-time online automatically to generate in real time ground county integratedCoordination control zone.
In content of the present invention, relate to the description to topological structure of electric, in professional standard, " EMS application program connectsMouthful (EMS-API) the 301st part: common information model (CIM) basis " (DL/T890.301-2004) in to grid equipmentConnected mode provided the describing method of specification, main contents are as follows.
For description equipment establishes a connection, conductive equipment (ConductingEquipment), splicing ear are defined(Terminal), connected node (ConnectivityNode) and topological island (TopologicalIsland), as follows respectively:
Conductive equipment: the part of power system, for carrying electric current or designing generally bag with conduction join dependencyDraw together transmission line of electricity, transformer, Transformer Winding, physics bus, isolating switch, breaker, capacitor, reactor etc.
Connection end point: the electric connecting point of conductive equipment, a conductive equipment can have one or more connection end points, transformationDevice winding has 1 connection end point, and isolating switch and breaker have 2 connection end points, and reactive-load compensation equipment has 1Individual connection end point, bus have 1 connection end point.
Connected node: connected node is some such points, and the connection end point of conductive equipment connects by zero impedance on these aspectsBe connected together. A connected node can comprise the connection end point of any number, thereby shows affiliated the leading of these connection end pointsElectricity equipment connection together.
Topology island: the subset of an electrical connection of network, comprises the conductive equipment, company's end points and the company that are electrically connected togetherConnect node. Topology island can change along with the variation of current network state (being the change such as isolating switch, breaker state).
Summary of the invention
The object of the invention is the weak point for overcoming prior art, propose to assist in the integrated automatism voltage control in a kind of ground countyAdjust the automatic generation method of control zone. The method, by electrical network being carried out to multistage topology coloring coding, automatically generates and coordinates in real timeControl zone, in the integrated automatism voltage control in county, the requirement of controlling is coordinated by the superior and the subordinate contentedly.
The automatic generation method of coordinating control zone in the integrated automatism voltage control in a kind of ground county that this method proposes, its feature existsIn, the method is determined control cycle in advance, concrete steps are as follows:
1) in the time that control cycle arrives, the model of the 110kV electrical network that generation ground county electrical network 220kV transformer connects, andProduce 220kV and coordinate control zone, specifically comprise following sub-step:
1 ?a) the integrated dispatch automated system in Cong Di county obtains the integrated electric network model in complete Di county;
1 ?b) complete electric network model is processed, delete the whole transmission lines of electricity beyond 110kV electric pressure; DeleteWhole isolating switches and breaker beyond 110kV electric pressure; Delete in 110kV electric pressure all in dividing stateAfter isolating switch and breaker, form the model of 110kV electrical network;
1 ?c) 110kV electric network model is carried out to topology coloring coding, form some topological islands, each topological island has comprised someThe conductive equipment linking together on electric;
1 ?d) check successively whole topological islands, in island i as topological in certain, contain 220kV transformer and 110kV transformer station, willSet up a 220kV corresponding to this topology island i and coordinate control zone, be designated asRepresent to contain 220kV and 110kVWhat the topological island i of electric pressure formed has the 220kV of electrical link to coordinate control area;
1 ?e) the 220kV transformer on topological island i is processed: 220kV transformer is designated asForThe 220kV that topology island i forms coordinates n 220kV transformer in control area, willJoinIn; By 220kVTransformerThe mother that what high-pressure side winding connected by closed bus connection switch pass through closed bus connection switch paired runningLine is merged into one, is designated asRepresent the h bar logic bus of 220kV high voltage side of transformer 220kV electric pressure,WillJoinIn; What 220kV transformer medium voltage side winding was connected passes through closed bus connection switch paired runningBus merge into one, be designated asThe m bar that represents 220kV transformer medium voltage side 110kV electric pressure is patrolledCollect bus, willJoinIn; What 220kV step down side winding was connected passes through closed bus connection switchThe bus of paired running is merged into one, is designated asRepresent the m of 220kV transformer medium voltage side 35kV electric pressureBar logic bus, willJoinIn;
1 ?f) the 110kV transformer station on topological island i is processed: 110kV transformer station high-voltage side bus is designated as Represent the j bar bus of 110kV high voltage side of transformer 110kV electric pressure, willJoinIn;
2) the 35kV transformer station that Jiang Di county electrical network 220kV step down side winding connects joins the association having generatedAdjust in control zone, specifically comprise following sub-step:
2 ?a) again the integrated dispatch automated system in Cong Di county obtain the integrated electric network model in complete Di county;
2 ?b) complete electric network model is processed, delete the whole transmission lines of electricity beyond 35kV electric pressure; Delete 35kVWhole isolating switches and breaker beyond electric pressure; Delete in 35kV electric pressure all in dividing keeping apart of stateAfter pass and breaker, form the model of 35kV electrical network;
2 ?c) model of 35kV electrical network is carried out to topology coloring coding, form some topological islands, each topological island has comprised someThe conductive equipment linking together on electric;
2 ?d) check successively whole topological islands, in island as topological in certain, contain 220kV transformer and 35kV transformer station, remember this 220kVTransformer isX transformer in the topological island that represents to contain 220kV and 35kV electric pressure, checksStep 1) in the whole 220kV that produced coordinate control zone, if find certain 220kV to coordinate control zoneMeet:By the 35kV transformer station high-voltage side bus in this topology island by closed bus connection switch paired runningBus is merged into one, is designated asRepresent the p bar logic that contains 220kV step down side 35kV electric pressureBus, willJoinIn;
3) model of the 35kV electrical network at county level that generation area power grid 110kV transformer connects, and produce 110kV coordinationSub-control zone, specifically comprises following sub-step:
3 ?a) again the integrated dispatch automated system in Cong Di county obtain the integrated electric network model in complete Di county;
3 ?b) complete electric network model is processed, delete the whole transmission lines of electricity beyond 35kV electric pressure; Delete 35kVWhole isolating switches and breaker beyond electric pressure; Delete in 35kV electric pressure all in dividing keeping apart of stateAfter pass and breaker, form the model of 35kV electrical network;
3 ?c) model of 35kV electrical network is carried out to topology coloring coding, form some topological islands, each topological island has comprised someThe conductive equipment linking together on electric;
3 ?d) check successively whole topological islands, in island k as topological in certain, contain 110kV transformer and 35kV transformer station, by rightShould set up 110kV in this topology island k and coordinate control zone, be designated asRepresent to contain in 110kV transformer stationWhat the topological island of 110kV and 35kV electric pressure formed has the son of electrical link to coordinate control zone;
3 ?e) the 110kV transformer on topological island k is processed, 110kV transformer is designated asTableShow that the 110kV that topological island k forms coordinates n 110kV transformer in control area, willJoinIn, will110kV high voltage side of transformer winding institute connection bus is merged into one by the bus of closed bus connection switch paired running, noteForWillJoinIn; 110kV transformer medium voltage side winding institute connection bus is opened by closed motherThe bus that closes paired running is merged into one, is designated asRepresent to contain 110kV transformer medium voltage side 35kV voltage etc.The m bar logic bus of level, willJoinIn;
3 ?f) the 35kV transformer station on topological island k is processed, by 35kV transformer station high-voltage side bus by closedThe bus of bus connection switch paired running merge into one, be designated asRepresent the mesohigh side logic mother of 35kV transformer stationLine, willJoinIn;
4) by step 3) in the 110kV that generates coordinate sub-control zone and join step 1) in the 220kV that generates coordinate controlDistrict processed, concrete grammar is: check successively step 3) in whole 110kV of generating coordinate sub-control zoneRightIn'sIf can find certainInMeet: Three conditions meet simultaneously, willJoinIn;
5) in the time that next control cycle arrives, return to step 1) start next round and coordinate the automatic generation of control zone.
The feature of maximum of the present invention is by electrical network being carried out to multistage topology coloring coding, can form real-time and automaticallyFor the coordination control zone of the integrated automatism voltage control in ground county, overcome existing ground county two-level scheduler and coordinated to cause not electricityPress undesirable or idle unreasonable flowing, coordinate reactive voltage control thereby meet transformer station of electrical network the superior and the subordinate of Liao Di countyThe requirement of system.
Brief description of the drawings
Fig. 1 is the schematic diagram of area and County Power Grid radiation operation area.
Fig. 2 is the configuration of power network based on embodiments of the invention.
Fig. 3 is the coordination control zone illustraton of model based on embodiments of the invention.
Detailed description of the invention
Taking the electrical network shown in Fig. 2 as example, introduce a specific embodiment of the present invention below. The basic condition of the present embodiment asUnder:
The region of the actual 220kV-110kV-35kV that the present embodiment is selected, Fig. 2 enters actual complicated modelGo to simplify and processed, retained typical electric network composition. The 220kV transformer station and 110 of ground tune administration has been contained in this regionTransformer station and county adjust the 35kV transformer station of compass of competency, meet the region of the present invention about the integrated required covering in ground county.Wherein the low-pressure side 35kV bus of 220kV transformer station is connected with the transformer station of 35kV, medium voltage side 110kV bus with110kV transformer station, and low-pressure side 35kV bus in this 110kV transformer station is also connected with the transformer station of 35kV.
In the present embodiment method, determine in advance control cycle, this cycle can manually be set according to actual conditions and demand, this enforcementThe routine cycle of the integrated automatism voltage control in county is definitely 5 minutes, and the present embodiment method comprises the following steps:
1) in the time that control cycle arrives, the model of the 110kV electrical network that generation area power grid 220kV transformer connects, andProduce and coordinate control zone, this step comprises following sub-step:
1-a) the integrated dispatch automated system in Cong Di county is obtained complete electric network model. In the present embodiment for obtaining Di countyIntegrated model, as Fig. 2) as described in. In Fig. 2, bus1-bus2 is the bus of 220kV, Line1-Line2220kVCircuit, the bus connection switch Breaker1 of 220kV bus is closure state. Bus3-bus6 is the bus of 110KV, lin3-line4Be 110kV circuit, breaker2 is the bus connection switch of 110KV, is off-state. Bus7-bus14 is the mother of 35KVLine, lin5-line9 is 35kV circuit, breaker3 is the bus connection switch of 35KV, is off-state. T1-T2BeThe transformer of 220/110/35kV. T1-T2It is the transformer of 110/35/10kV. T5-T9It is the transformer of 35/10kV. A-HBe that 8 plant stands are three plant stands, wherein A plant stand is 220kV station, wherein has the transformer of two 220/110/35kVT1、T2; The bus connection switch of two buses of low-pressure side 35kV side disconnects, and wherein two points of other outlets are all with 35kVThe G of transformer station and F; Medium voltage side 110kV side has two by mother connected bus bus3 and bus4, and each bus dividesThe other B of transformer station and C with 110kV. In the B of transformer station of 110kV, there is the transformer T of 1 110/35/10kV3，Medium voltage side 35kV bus is with the E of transformer station and the D of two 35kV; In 110 C of transformer station, there is 1 110/35/10kVTransformer T4, medium voltage side 35kV bus is with the H of transformer station of a 35kV.
1 ?b) complete electric network model is processed, delete the whole model of power transmission systems beyond 110kV electric pressure;Delete 110kV electric pressure whole isolating switches and breaker in addition; Delete in 110kV electric pressure all in dividingLeaving of state closed and breaker. The model that in the present embodiment, like this processing finishes rear formation 110kV electrical network is: T1‐T4FourIndividual main transformer, bus3 ?tetra-110kV buses of bus6, line3 ?two 110kV circuits of line4.
1 ?c) 110kV electric network model is carried out to topology coloring coding, form some topological islands, if each topological island has comprisedDo the conductive equipment linking together on electric; In the present embodiment, after topology coloring coding, 2 topological islands are formed respectivelyFor:
1、T1-bus3-line3-bus5
2、T2-bus4-line4-bus6
1 ?d) check successively whole topological islands, in island i as topological in certain, contain 220kV transformer and 110kV transformer station, willSet up a 220kV corresponding to this topology island i and coordinate control zone, be designated as. Because T1 and T2 are 220kV transformationsDevice, and bus5, bus6, T3, T4 Dou Shi 110kV transformer station, 220kV can be set up in these two topological islandsCoordinate control zone, be respectively:
Z1 220：T1-bus3-line3-bus5
Z2 220：T2-bus4-line4-bus6
1 ?e) the 220kV transformer on topological island i is processed, 220kV transformer (is designated as) add, by 220kV high voltage side of transformer winding institute connection bus, (bus by closed bus connection switch paired running mergesBe one, lower same) (be designated as) joinIn; By 220kV transformer medium voltage side winding institute connection bus (noteFor) add; 220kV step down side winding institute connection bus (is designated as) add. This realityExecute in example 220kV transformer T1、T2Be designated as respectively T1 220、T2 220; 220kV high voltage side of transformer winding is connectedTherefore bus bus1 and bus2 merge into a bus because mother is closed, are designated as Bh 220; By medium voltage side bus that winding connectsBus3 and bus4 are designated as respectively Bm1 110And Bm2 110; Low-pressure side winding is connected to bus bus7 and bus8 is designated as respectively Bl1 35And Bl2 35. And these are all joined in corresponding coordination region, and these two topological islands generate respectively two coordination areas soTerritory:
1 ?f) the 110kV transformer station on topological island i is processed, by 110kV transformer station high-voltage side busAddEnterIn the present embodiment, the high-voltage side bus Bus5 of the B of 110kV transformer station on topological island 1 is designated as to bj1 110Add associationAdjust region Z1 220; The high-voltage side bus Bus6 of the C of 110kV transformer station on topological island 2 is designated as to bj2 110Add coordination areaTerritory Z2 220. Coordinating now region becomes:
2) 35kV transformer station area power grid 220kV step down side winding being connected joins the association having generatedAdjust in control zone, this step comprises following sub-step:
2 ?a) the integrated dispatch automated system in Cong Di county obtain complete electric network model. (as the model in step 1, Fig. 2Shown in)
2 ?b) complete electric network model is processed, delete the whole model of power transmission systems beyond 35kV electric pressure; DeleteWhole isolating switches and breaker except 35kV electric pressure; Delete in 35kV electric pressure all in a point stateIsolating switch and breaker. The such processing of the present embodiment finish rear formation 35kV electrical network model be: T1 ?two of T2220/110/35kV main transformer, T8 ?two 35/10kV main transformers of T9, bus7 ?tetra-35kV buses of bus10, line5 ?line6 twoBar 35kV circuit.
2 ?c) electric network model of 35kV electrical network is carried out to topology coloring numbering, form some topological islands, each topological island comprisesSome conductive equipments that link together on electric. After the present embodiment topology coloring coding, 2 topological islands are formedBe respectively:
1、T1-bus7-line5-bus9
2、T2-bus8-line6-bus10
2 ?d) check successively whole topological islands, in island as topological in certain, contain 220kV transformer and 35kV transformer station, remember this changeDepressor isCheck in step 1) in whole coordinations control zone of having produced, if find certain to coordinate control zoneMeet:The 35kV transformer station high-voltage side bus in certain topological island (is designated as) joinIn.220kV main transformer T1 in the present embodiment in topological island 1 comprises in the coordination control zone Z1220 having produced, and remembers 35kVThe G of transformer station high-voltage side bus bus9 is bp135 and joins in Z1220; 220kV main transformer T2 in topology island 2 existsIn the coordination control zone Z2220 having produced, comprise, the Ze Ji 35kV F of transformer station high-voltage side bus bus10 be bp235 alsoJoin in Z2220. Two coordination areas that present two topological islands produce are respectively:
3) model of the 35kV electrical network at county level that generation area power grid generation 110kV main transformer connects, and produce 110kV associationTune control zone, this step comprises following sub-step:
3 ?a) the integrated dispatch automated system in Cong Di county obtain complete electric network model. (as the model in step 1, Fig. 2Shown in)
3 ?b) complete electric network model is processed, delete the whole transmission lines of electricity beyond 35kV electric pressure; Delete 35kVWhole isolating switches and breaker beyond electric pressure; Delete in 35kV electric pressure all in dividing keeping apart of stateClose and breaker. In the present embodiment, processing finishes the model of rear formation 35kV electrical network and is: T3 ?tetra-110/35/10kV masters of T4Become, T5 ?tri-35/10kV main transformers of T7, bus11 ?five 35kV buses of bus15, line7 ?tri-35kV circuits of line9.
3 ?c) electric network model of 35kV is carried out to topology coloring coding, form some topological islands, if each topological island has comprisedDo the conductive equipment linking together on electric. After the present embodiment topology coloring coding, 3 topological islands are formed respectivelyFor:
1、T3-bus11-line7-bus12
2、T3-bus11-lin8-bus13
3、T4-bus14-lin9-bus15
3 ?d) check successively whole topological islands, in island k as topological in certain, contain 110kV transformer and 35kV transformer station, willSet up 110kV corresponding to this topology island k and coordinate control zone, be designated as. In the present embodiment, three topological islands all containThere are 110kV transformer T3 or T4, also have the E of 35kV transformer station or D or H, can set up a 110kV associationAdjust control zone, be designated as respectively:
Z1 110:T3-bus11-line7-bus12
Z2 110:T3-bus11-line8-bus13
Z3 110:T4-bus14-line9-bus15
3 ?e) the 110kV transformer on topological island k is processed, 110kV transformer (is designated as) add110kV high voltage side of transformer winding institute connection bus (is designated as) addBy in 110kV transformerPress side winding institute connection busAddIn the present embodiment, 110kV transformer T3 is designated as to T3110, T4 is rememberedFor T4110; 110kV transformer high-voltage winding is connected to bus bus5 and be designated as Bh5110, bus6 is designated as to Bh6110;110kV main transformer medium voltage side winding is connected to bus bus11 and be designated as Bm1135, bus14 is designated as to Bm1435. And by thisAll join in corresponding coordination control subregion a bit:
Z1 110:Bh5 110‐T3 110-Bm11 35-line7-bus12
Z2 110:Bh6 110‐T3 110-Bm11 35-line8-bus13
Z3 110:T4 110-Bm14 35-line9-bus15
3 ?f) the 35kV transformer station on topological island k is processed, by 35kV transformer station high-voltage side busAddIn the present embodiment, the high-voltage side bus Bus12 of the E of 35kV transformer station on topological island 1 is designated as to bj1235 and adds associationAdjust region Z1110; The high-voltage side bus Bus13 of the D of 35kV transformer station on topological island 2 is designated as to bj1335 and adds coordinationRegion Z2110; The high-voltage side bus Bus15 of the H of 35kV transformer station on topological island 3 is designated as to bj1535 and adds coordination areaTerritory Z3110. Coordinating now region becomes:
Z1 110:Bh5 110‐T3 110-Bm11 35-line7-bj12 35
Z2 110:Bh6 110‐T3 110-Bm11 35-line8-bj13 35
Z3 110:T4 110-Bm14 35-line9-bj15 35
4) by step 3) in the 110kV that generates coordinate sub-control zone and add step 1) in the 220kV that generates coordinate to controlDistrict, method is: check successively step 3) middle generate wholeRightInIf can find certainInMeet: Three conditions meet simultaneously, willAddEnter toIn. In the present embodiment, in three sub regions, correspondence satisfies condition respectively:
1、Z1 110In Bh5 110, can find Z1 220In bj1 110Meet: (Bh5 110∈Z1 110)∧(Bh5 110＝bus5＝bj1 110)∧(bj1 110∈Z1 220)
2、Z2 110In Bh5 110, can find Z1 220In bj1 110Meet: (Bh5 110∈Z1 110)∧(Bh5 110＝bus5＝bj1 110)∧(bj1 110∈Z1 220)
3、Z2 110In Bh6 110, can find Z2 220In bj2 110Meet: (Bh6 110∈Z2 110)∧(Bh6 110＝bus6＝bj2 110)∧(bj2 110∈Z2 220)
Therefore will coordinate to control subregion Z1 110And Z2 110Join Z1 220In, will coordinate to control subregion Z3 110Join Z2 220In, therefore the coordination control area on final two topological islands as shown in Figure 3, is respectively:
5) in the time that the next automatism voltage control cycle arrives, return to step 1) beginning integrated coordination control zone, Xin Di countyAutomatic generation.
Claims (1)
- The automatic generation method of coordinating control zone in the integrated automatism voltage control in 1.Yi Zhongdi county, is characterized in that,The method is determined control cycle in advance, and concrete steps are as follows:1) in the time that control cycle arrives, the model of the 110kV electrical network that generation ground county electrical network 220kV transformer connects, andProduce 220kV and coordinate control zone, specifically comprise following sub-step:1 ?a) the integrated dispatch automated system in Cong Di county obtains the integrated electric network model in complete Di county;1 ?b) complete electric network model is processed, delete the whole transmission lines of electricity beyond 110kV electric pressure; DeleteWhole isolating switches and breaker beyond 110kV electric pressure; Delete in 110kV electric pressure all in dividing stateIsolating switch and breaker, the model of formation 110kV electrical network;1 ?c) 110kV electric network model is carried out to topology coloring coding, form some topological islands, each topological island has comprised someThe conductive equipment linking together on electric;1 ?d) check successively whole topological islands, in island i as topological in certain, contain 220kV transformer and 110kV transformer station, willSet up a 220kV corresponding to this topology island i and coordinate control zone, be designated asRepresent to contain 220kV and 110kVWhat the topological island i of electric pressure formed has the 220kV of electrical link to coordinate control area;1 ?e) the 220kV transformer on topological island i is processed: 220kV transformer is designated asForThe 220kV that topology island i forms coordinates n 220kV transformer in control area, willJoinIn; By 220kVTransformerThe bus of the paired running that high-pressure side winding connects by closed bus connection switch is merged into one, is designated asRepresent the h bar logic bus of 220kV high voltage side of transformer 220kV electric pressure, willJoinIn; The bus that passes through closed bus connection switch paired running that 220kV transformer medium voltage side winding is connected merges into oneBar, is designated asRepresent the m bar logic bus of 220kV transformer medium voltage side 110kV electric pressure, willAddEnter toIn; The bus that passes through closed bus connection switch paired running that 220kV step down side winding is connected closesAnd be one, be designated asRepresent the m bar logic bus of 220kV transformer medium voltage side 35kV electric pressure, willJoinIn;1 ?f) the 110kV transformer station on topological island i is processed: 110kV transformer station high-voltage side bus is designated as Represent the j bar bus of 110kV high voltage side of transformer 110kV electric pressure, willJoinIn;2) the 35kV transformer station that Jiang Di county electrical network 220kV step down side winding connects joins the association having generatedAdjust in control zone, specifically comprise following sub-step:2 ?a) again the integrated dispatch automated system in Cong Di county obtain the integrated electric network model in complete Di county;2 ?b) complete electric network model is processed, delete the whole transmission lines of electricity beyond 35kV electric pressure; Delete 35kVWhole isolating switches and breaker beyond electric pressure; Delete in 35kV electric pressure all in dividing keeping apart of stateAfter pass and breaker, form the model of 35kV electrical network;2 ?c) model of 35kV electrical network is carried out to topology coloring coding, form some topological islands, if each topological island has comprisedDo the conductive equipment linking together on electric;2 ?d) check successively whole topological islands, in island as topological in certain, contain 220kV transformer and 35kV transformer station, remember this 220kVTransformer isX transformer in the topological island that represents to contain 220kV and 35kV electric pressure, checksStep 1) in produced whole 220kV and coordinated control zone, if find certain 220kV to coordinate control zoneMeet:By the 35kV transformer station high-voltage side bus in this topology island by closed bus connection switch paired runningBus is merged into one, is designated asRepresent the p bar logic that contains 220kV step down side 35kV electric pressureBus, willJoinIn;3) model of the 35kV electrical network at county level that generation area power grid 110kV transformer connects, and produce 110kV coordinationSub-control zone, specifically comprises following sub-step:3 ?a) again the integrated dispatch automated system in Cong Di county obtain the integrated electric network model in complete Di county;3 ?b) complete electric network model is processed, delete the whole transmission lines of electricity beyond 35kV electric pressure; Delete 35kVWhole isolating switches and breaker beyond electric pressure; Delete in 35kV electric pressure all in dividing keeping apart of stateAfter pass and breaker, form the model of 35kV electrical network;3 ?c) model of 35kV electrical network is carried out to topology coloring coding, form some topological islands, if each topological island has comprisedDo the conductive equipment linking together on electric;3 ?d) check successively whole topological islands, in island k as topological in certain, contain 110kV transformer and 35kV transformer station, willSet up 110kV corresponding to this topology island k and coordinate control zone, be designated asRepresent to contain in 110kV transformer stationThe son that has electrical link that has the topological island of 110kV and 35kV electric pressure to form is coordinated control zone;3 ?e) the 110kV transformer on topological island k is processed, 110kV transformer is designated asTableShow that the 110kV that topological island k forms coordinates n 110kV transformer in control area, willJoinIn, will110kV high voltage side of transformer winding institute connection bus is merged into one by the bus of closed bus connection switch paired running, noteForWillJoinIn; 110kV transformer medium voltage side winding institute connection bus is opened by closed motherThe bus that closes paired running is merged into one, is designated asRepresent to contain 110kV transformer medium voltage side 35kV voltage etc.The m bar logic bus of level, willJoinIn;3 ?f) the 35kV transformer station on topological island k is processed, by 35kV transformer station high-voltage side bus by closedThe bus of bus connection switch paired running merge into one, be designated asRepresent the mesohigh side logic mother of 35kV transformer stationLine, willJoinIn;4) by step 3) in the 110kV that generates coordinate sub-control zone and join step 1) in the 220kV that generates coordinate controlDistrict processed, concrete grammar is: check successively step 3) in whole 110kV of generating coordinate sub-control zoneRightIn'sIf can find certainInMeet simultaneously:WillJoinIn;5) in the time that next control cycle arrives, return to step 1) start next round and coordinate the automatic generation of control zone.
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| CN105225584B (en) * | 2015-08-03 | 2018-05-11 | 国家电网公司 | A kind of team control function emulation system of area power grid breaker |
| CN105048469B (en) * | 2015-08-20 | 2017-06-16 | 国家电网公司 | Photovoltaic generation multistage collects the automatic generation method of Grid model |
| CN106451413A (en) * | 2016-06-02 | 2017-02-22 | 国网江西省电力公司赣东北供电分公司 | Method for intelligently generating power loss statistical region based on power grid topological structure |
| CN109936142B (en) * | 2017-12-15 | 2022-06-21 | 广州供电局有限公司 | Automatic control method and device for voltage of transmission and distribution integrated power grid |
| CN109687583A (en) * | 2018-12-24 | 2019-04-26 | 国网北京市电力公司 | A kind of power grid AVC automatic control Interlocking Methods |
| CN110635489A (en) * | 2019-11-07 | 2019-12-31 | 国网北京市电力公司 | Anti-error control method and system of automatic voltage control system and storage medium |
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