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CN103472325A - Detection platform for independent wave energy and tidal current energy power generation system - Google Patents

Detection platform for independent wave energy and tidal current energy power generation system Download PDF

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CN103472325A
CN103472325A CN2013103646552A CN201310364655A CN103472325A CN 103472325 A CN103472325 A CN 103472325A CN 2013103646552 A CN2013103646552 A CN 2013103646552A CN 201310364655 A CN201310364655 A CN 201310364655A CN 103472325 A CN103472325 A CN 103472325A
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detection platform
thyristor valve
load
short
energy
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CN103472325B (en
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叶卫华
陆振纲
申洪
荆平
周飞
吴俊玲
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
National Ocean Technology Center
Smart Grid Research Institute of SGCC
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
National Ocean Technology Center
Smart Grid Research Institute of SGCC
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Abstract

The invention relates to a detection platform for an independent wave energy and tidal current energy power generation system. The detection platform is equipment being 380V/500kW, and comprises a power quality monitoring module, a load regulation module and a short-circuit simulation module. The wave energy and tidal current energy power generation system is connected with the load regulation module for carrying out a load experiment, or is connected with the short-circuit simulation module for carrying out a short-circuit experiment; the power quality monitoring module comprises a back-end computer, a controller and an on-line power quality monitor which are arranged in a monitoring cabinet, so that the operations of performing human-machine exchange, detecting data, transmitting a load regulation command, transmitting a short-circuit simulation command and monitoring the power quality can be finished; different combinations of load branches of the load regulation module are regulated, so that the stepped load regulation is realized, and dynamic characteristics of inverter output are detected according to load change; the short-circuit simulation module is a short-circuit cabinet, and can simulate various faults of single-phase grounding, inter-phase short circuit, symmetrical short-circuit and asymmetric short circuit. The detection platform can independently finish a set of test item and has the characteristics of high portability, high accuracy and high real-time property.

Description

The detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system
Technical field
The present invention relates to the detection platform of power generation with marine energy technical field, be specifically related to the detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system.
Background technology
Along with world energy sources day is becoming tight, ocean energy, as a kind of green regenerative energy sources, is subject to the generally attention of coastal countries.China's ocean energy starting is morning, and obtains in recent years showing great attention to of party and state leaders.The developed countries such as America and Europe have built the ocean power plants such as some dissimilar wave energies, marine tidal-current energy, enter the operation phase.Although China early and with world level differs without many in the technical development of power generation with marine energy, but owing to lacking the coherent detection means, and not yet arrive the reasons such as large-scale application stage, the equipment manufacture relevant to the power generation with marine energy technology not yet forms at present, except small-sized ocean energy device, substantially there is no the ocean power generating device of batch production.
The real sea situation test of ocean energy isolated power system is that the ocean energy device moves towards the key link of scale industrialization application from engineering prototype with detecting.Therefore, the detection platform of wave energy and marine tidal-current energy isolated power system is the gordian technique equipment of a urgent need.
Summary of the invention
For the deficiencies in the prior art; the detection platform that the purpose of this invention is to provide a kind of wave energy and marine tidal-current energy stand alone generating system; this detection platform both can have been carried out the equipment main performances such as quality, the quality of power supply of exerting oneself; also can the control protection system performance of equipment be detected; but the complete test item of complete independently stand alone generating system; testing result has real-time, accuracy and calculates the advantages such as easy, can play good wave energy, the effect of ocean energy stand alone generating system Site Detection.
The objective of the invention is to adopt following technical proposals to realize:
The invention provides the detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system, its improvements are, described detection platform comprises the electric energy quality monitoring module connected successively, load regulation module and short circuit analog module; The electric energy quality monitoring module of described detection platform is connected with tidal current energy generating system with wave energy.
Further, described electric energy quality monitoring module comprises background computer, controller and the quality of power supply on-line monitoring instrument connected successively;
Described background computer, controller and quality of power supply on-line monitoring instrument all are installed in monitoring cabinet;
Described electric energy quality monitoring module has been used for that man-machine exchange, Data Detection, load regulation order issue, the short circuit simulation command issues and electric energy quality monitoring.
Further, wave energy is connected with described controller with tidal current energy generating system.
Further, described electric energy quality monitoring comprises the generator quality monitoring, quality of power supply quality monitoring, and power adjustments and fault simulation detect.
Further, the controllable load that described load regulation module is resistor group, Reactor banks, capacitor group and the combination of thyristor valve group; Described load regulation module realizes the ladder adjusting of load by the various combination of adjusting load branch, detect the dynamic output characteristics of wave energy and tidal current energy generating system inverter according to the variation of load.
Further, described resistor group, Reactor banks, capacitor group and thyristor valve all are connected on ac bus; Resistance in described resistor group is installed in resistor box, and the reactor in described Reactor banks is installed in reactance cabinet, and the electric capacity in described capacitor group is installed in capacitor box; Described thyristor valve is installed in valve group cabinet;
Described controllable load carries out switching by thyristor, response time 20ms.
Further, described resistor group is comprised of resistance-isolating switch branch road and the resistance of at least one-thyristor valve branch circuit parallel connection, described resistance-isolating switch branch road and resistance-equal ground connection of thyristor valve branch road;
Described resistance-isolating switch branch road comprises isolating switch and the resistance of series connection; Described resistance-thyristor valve branch road comprises resistance and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor.
Further, described Reactor banks is comprised of reactor-thyristor valve branch circuit parallel connection; Described reactor-thyristor valve branch road comprises reactor and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor; Described reactor-thyristor valve grounding.
Further, described capacitor group is comprised of capacitor-thyristor valve branch circuit parallel connection; Described capacitor-thyristor valve branch road comprises capacitor and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor; Described capacitor-thyristor valve grounding.
Further, described short circuit analog module adopts the short circuit cabinet to realize, comprises the single-phase short circuit switch be arranged on ac bus, two-way short circuiting switch and three-phase shortcircuit switch; Described short circuit analog module is for simulating singlephase earth fault, phase fault, symmetrical short-circuit fault and asymmetry short circuit fault.
Further, described ac bus and single-phase short circuit switch, two-way short circuiting switch and three-phase shortcircuit switch are installed in incoming line cabinet, and incoming line cabinet, monitoring cabinet, controllable load and short circuit cabinet all are installed in moving containers; Described moving containers is connected with mobile device, and moving containers comprises that left and right each three sides open the door and a back pullout (BPO).
Further, described wave energy comprises with tidal current energy generating system genset, rectification circuit, energy-storage travelling wave tube and the inverter be connected successively; Described genset, through rectification circuit output direct current, by the energy-storage travelling wave tube energy storage, then is reverse into three-phase alternating current by inverter, then connect controllable load and carry out the load experiment, or connection short circuit analog module carries out short circuit experiment.
The present invention is based on the equipment of a kind of 380V/500kW that another purpose provides, its improvements are, described equipment is detection platform claimed in claim 1.
Compared with the prior art, the beneficial effect that the present invention reaches is:
The present invention is directed to the requirement of wave energy, the real sea situation test of ocean energy stand alone generating system; designed portable detection platform; can complete the functions such as the Quality Detection of exerting oneself, electric energy quality monitoring and protection test, the complete and reliable and stable work of function, operation and maintenance is convenient.This system both can have been carried out the equipment main performances such as quality, the quality of power supply of exerting oneself, also can the control and protection system performance of equipment be detected, but the complete test item of complete independently stand alone generating system, testing result has real-time, accuracy and calculates the advantages such as easy, can play good wave energy, the effect of ocean energy stand alone generating system Site Detection.
The accompanying drawing explanation
Fig. 1 is the detection platform structural drawing of wave energy provided by the invention and marine tidal-current energy stand alone generating system;
Fig. 2 is controllable load frame diagram provided by the invention;
Fig. 3 is electric energy quality monitoring modular structure block diagram provided by the invention;
Fig. 4 is electric energy quality monitoring module performance detection technique route map provided by the invention;
Fig. 5 is the detection platform entity structure diagram of wave energy provided by the invention and marine tidal-current energy stand alone generating system.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The detection platform structural drawing of wave energy provided by the invention and marine tidal-current energy stand alone generating system as shown in Figure 1, the equipment that this detection platform is a set of 380V/500kW, comprise the electric energy quality monitoring module connected successively, load regulation module and the large module of short circuit analog module three; The electric energy quality monitoring module of described detection platform is connected with tidal current energy generating system with wave energy.
Wave energy comprises with tidal current energy generating system genset, rectification circuit, energy-storage travelling wave tube and the inverter be connected successively; Wave energy, marine tidal-current energy generator group, through rectification circuit output direct current, by the energy-storage travelling wave tube energy storage, then are reverse into three-phase alternating current through inverter, then connect controllable load and carry out the load experiment, or connection short circuit analog module carries out short circuit experiment.In Fig. 1, the A point is the vdct point, and the B point is alternating voltage test point and electric energy quality monitoring point.
One, electric energy quality monitoring module:
The electric energy quality monitoring module comprises background computer, controller and the quality of power supply on-line monitoring instrument connected successively, all be installed in monitoring cabinet, can complete that man-machine exchange, Data Detection, load regulation order issue, the short circuit simulation command issues, electric energy quality monitoring, is the core of detection platform.Wave energy is connected with described controller with tidal current energy generating system.Electric energy quality monitoring modular structure block diagram provided by the invention as shown in Figure 3.
Electric energy quality monitoring comprises:
Generator quality monitoring: undulatory property and the intermittence of exerting oneself for wave energy and marine tidal-current energy stand alone generating system, the design stand alone generating system Quality Detection platform of exerting oneself.Detection system is obtained DC voltage and the DC current of each Blast Furnace Top Gas Recovery Turbine Unit (TRT), and then obtains respectively exerting oneself in real time of each Blast Furnace Top Gas Recovery Turbine Unit (TRT) and the output of whole stand alone generating system.
Quality of power supply quality monitoring: be the quality of power supply that ensures that stand alone generating system provides for load, design stand alone generating system Power Quality Detection platform.By choosing high-precision electric energy quality on-line monitoring device, complete that the parameters such as harmonic wave, voltage deviation, voltage fluctuation and flickering to system output voltage and electric current, Voltage unbalance, frequency departure, power factor are detected, record analysis.
Power adjustments and fault simulation detect: for ensureing Blast Furnace Top Gas Recovery Turbine Unit (TRT) starting protection function quickly and accurately when the system failure, design stand alone generating system protection system detection platform.This detection platform can be simulated the various faults such as single-phase earthing, phase fault, symmetrical short-circuit and unsymmetrical short-circuit, realizes the detection to the protective value of stand alone generating system.Electric energy quality monitoring module performance detection technique route map provided by the invention as shown in Figure 4.
Two, load regulation module:
The controllable load that the load regulation module is resistor group, Reactor banks, capacitor group and the combination of thyristor valve group; Described load regulation module realizes the ladder adjusting of load by the various combination of adjusting load branch, detect the dynamic output characteristics of wave energy and tidal current energy generating system inverter according to the variation of load.Controllable load frame diagram provided by the invention as shown in Figure 2.
Resistor group, Reactor banks, capacitor group and thyristor valve all are connected on ac bus; Resistance in described resistor group is installed in resistor box, and the reactor in described Reactor banks is installed in reactance cabinet, and the electric capacity in described capacitor group is installed in capacitor box; Described thyristor valve is installed in valve group cabinet;
Controllable load carries out switching by thyristor, response time 20ms.
The resistor group is comprised of resistance-isolating switch branch road and the resistance of at least one-thyristor valve branch circuit parallel connection, described resistance-isolating switch branch road and resistance-equal ground connection of thyristor valve branch road; Described resistance-isolating switch branch road comprises isolating switch and the resistance of series connection; Described resistance-thyristor valve branch road comprises resistance and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor.
Reactor banks is comprised of reactor-thyristor valve branch circuit parallel connection; Described reactor-thyristor valve branch road comprises reactor and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor; Described reactor-thyristor valve grounding.
The capacitor group is comprised of capacitor-thyristor valve branch circuit parallel connection; Described capacitor-thyristor valve branch road comprises capacitor and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor; Described capacitor-thyristor valve grounding.
The load regulation modular design
(1) calculation of parameter:
Generator rating power is P gN, applied power S gN, power factor is
Figure BDA0000369323290000041
, generator reactive power output Q N = ± S GN 2 - P GN 2 .
(2) device parameter:
Resistance parameter: the active power of resistance for consuming generator, so the consumable maximum of resistance is gained merit for P gN, the resistance branch capacity, according to 8421 encoding settings, can guarantee that step-length is less when the resistance classification is less, is divided into 16 grades, step-length is 6.25%.Being divided into is 5 branch roads, and its resistance capacity is respectively P r1=P gN/ 16, P r2=P gN/ 16, P r3=P gN/ 8, P r4=P gN/ 4, P r5=P gN/ 2.
Inductance parameters: inductance is idle for the perception of consumption systems, and the consumable maximum of institute is idle is 331kvar, and the inductive branch capacity is according to 8421 encoding settings, and being divided into is 4 branch roads, and 15 grades, step-length is 6.6%, and the capacity of 4 inductive branches is respectively Q l1=Q gN/ 15, Q l2=2Q gN/ 15, Q l3=4Q gN/ 15, Q l4=8Q gN/ 15.
Capacitance parameter: electric capacity is for the capacitive reactive power of consumption systems, and the consumable maximum of institute is idle is 331kvar, and the capacitive branch capacity is according to 8421 encoding settings, and being divided into is 4 branch roads, and 15 grades, step-length is 6.6%, and the capacity of 4 capacitive branch is respectively Q c1=Q gN/ 15, Q c2=2Q gN/ 15, Q c3=4Q gN/ 15, Q c4=8Q gN/ 15.
Three, short circuit analog module:
The short circuit analog module is the short circuit cabinet, comprises the single-phase short circuit switch be arranged on ac bus, two-way short circuiting switch and three-phase shortcircuit switch; Can simulate the various faults such as single-phase earthing, phase fault, symmetrical short-circuit and unsymmetrical short-circuit.The short circuit analog module needs 3 380V three-phase breakers, as shown in Figure 1, while closing QS1, the simulation singlephase earth fault; The QS2 that closes, the simulation two-phase short-circuit fault, the QS3 that closes simulates three phase short circuit fault.
The generator outlet rated voltage is U gN=0.4kV, active power is P n=500kW, generator considers by whole to inverter section, generator to the equivalent short circuit impedance at inverter place can be similar to thinks 0.0051+j0.157 Ω.While calculating short-circuit current, consider not consider the energy storage device energy storage under extreme case, generator is exerted oneself under rated power, all supplies with short dot, has
While near the B point, three-phase shortcircuit occurring, its initial value is
I k ′ ′ = cU n 3 K G ( R G + jx d ′ ′ ) = 1.1 × 0.38 3 × 1.00096 × ( 0.0051 + j 0.157 ) kA = 1.53 kA ;
In formula: K g-generator impedance correction factor, expression formula is as follows:
Figure BDA0000369323290000053
State ac bus and single-phase short circuit switch, two-way short circuiting switch and three-phase shortcircuit switch and be installed in incoming line cabinet, incoming line cabinet, monitoring cabinet, controllable load and short circuit cabinet all are installed in moving containers; Described moving containers is connected with mobile device, and moving containers comprises that left and right each three sides open the door and a back pullout (BPO).Wave energy comprises with tidal current energy generating system genset, rectification circuit, energy-storage travelling wave tube and the inverter be connected successively; Described genset, through rectification circuit output direct current, by the energy-storage travelling wave tube energy storage, then is reverse into three-phase alternating current by inverter, then connect controllable load and carry out the load experiment, or connection short circuit analog module carries out short circuit experiment.The detection platform entity structure diagram of wave energy provided by the invention and marine tidal-current energy stand alone generating system as shown in Figure 5.
Detection platform provided by the invention, in order to detect the main performance of wave energy, marine tidal-current energy stand alone generating system, mainly comprises:
1) detect the generated output quality:
The undulatory property of exerting oneself for electricity generation system and intermittent detection platform can be by exchanging, the test of DC quantity, calculating, detect the important indicators such as the exerting oneself of generating set, efficiency, DC component.
2) detect the quality of power supply:
By choosing high-precision electric energy quality on-line monitoring device, realize that the parameters such as harmonic wave, voltage deviation, voltage fluctuation and flickering to system output voltage and electric current, Voltage unbalance, frequency departure, power factor are detected, record analysis.
3) detect monitoring system:
This protecting platform can be simulated the various faults such as single-phase earthing, phase fault, symmetrical short-circuit and unsymmetrical short-circuit, realizes the detection to the protective value of stand alone generating system.
Whole Equipment device for detecting performance and control protection system device for detecting performance have formed stand alone generating system detection platform of the present invention.According to national interconnection technology standard, the Whole Equipment pick-up unit can meet the needs of the tests such as system generating efficiency, power supply quality, protective value.Apparatus control system just can carry out mutual communication with replicating machine by various interface card extender and optical fiber, and the device practical operation situation can show on the man-machine interface of control system.Build the model of electrical network and load on replicating machine, can simulate actual electric network produce various typical conditions or, detect the main performance that grid-connection device is controlled protection system.Simultaneously, the replicating machine part is expanded and can the control protection system performance of high-power equipment be detected.But the complete test item of this detection platform complete independently, and there are the characteristics such as removable, that accuracy is high, real-time is good.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.

Claims (13)

1. the detection platform of a wave energy and marine tidal-current energy stand alone generating system, is characterized in that, described detection platform comprises the electric energy quality monitoring module connected successively, load regulation module and short circuit analog module; The electric energy quality monitoring module of described detection platform is connected with tidal current energy generating system with wave energy.
2. detection platform as claimed in claim 1, is characterized in that, described electric energy quality monitoring module comprises background computer, controller and the quality of power supply on-line monitoring instrument connected successively;
Described background computer, controller and quality of power supply on-line monitoring instrument all are installed in monitoring cabinet;
Described electric energy quality monitoring module has been used for that man-machine exchange, Data Detection, load regulation order issue, the short circuit simulation command issues and electric energy quality monitoring.
3. detection platform as claimed in claim 2, is characterized in that, wave energy is connected with described controller with tidal current energy generating system.
4. detection platform as claimed in claim 2, is characterized in that, described electric energy quality monitoring comprises the generator quality monitoring, quality of power supply quality monitoring, and power adjustments and fault simulation detect.
5. detection platform as claimed in claim 1, is characterized in that, the controllable load that described load regulation module is resistor group, Reactor banks, capacitor group and the combination of thyristor valve group; Described load regulation module realizes the ladder adjusting of load by the various combination of adjusting load branch, detect the dynamic output characteristics of wave energy and tidal current energy generating system inverter according to the variation of load.
6. detection platform as claimed in claim 5, is characterized in that, described resistor group, Reactor banks, capacitor group and thyristor valve all are connected on ac bus; Resistance in described resistor group is installed in resistor box, and the reactor in described Reactor banks is installed in reactance cabinet, and the electric capacity in described capacitor group is installed in capacitor box; Described thyristor valve is installed in valve group cabinet;
Described controllable load carries out switching by thyristor, response time 20ms.
7. detection platform as claimed in claim 5, is characterized in that, described resistor group is comprised of resistance-isolating switch branch road and the resistance of at least one-thyristor valve branch circuit parallel connection, described resistance-isolating switch branch road and resistance-equal ground connection of thyristor valve branch road;
Described resistance-isolating switch branch road comprises isolating switch and the resistance of series connection; Described resistance-thyristor valve branch road comprises resistance and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor.
8. detection platform as claimed in claim 5, is characterized in that, described Reactor banks is comprised of reactor-thyristor valve branch circuit parallel connection; Described reactor-thyristor valve branch road comprises reactor and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor; Described reactor-thyristor valve grounding.
9. detection platform as claimed in claim 5, is characterized in that, described capacitor group is comprised of capacitor-thyristor valve branch circuit parallel connection; Described capacitor-thyristor valve branch road comprises capacitor and the thyristor valve of series connection; Described thyristor valve is comprised of antiparallel thyristor; Described capacitor-thyristor valve grounding.
10. detection platform as claimed in claim 1, is characterized in that, described short circuit analog module adopts the short circuit cabinet to realize, comprises the single-phase short circuit switch be arranged on ac bus, two-way short circuiting switch and three-phase shortcircuit switch; Described short circuit analog module is for simulating singlephase earth fault, phase fault, symmetrical short-circuit fault and asymmetry short circuit fault.
11. detection platform as claimed in claim 10, it is characterized in that, described ac bus and single-phase short circuit switch, two-way short circuiting switch and three-phase shortcircuit switch are installed in incoming line cabinet, and incoming line cabinet, monitoring cabinet, controllable load and short circuit cabinet all are installed in moving containers.
12. detection platform as claimed in claim 1, is characterized in that, described wave energy comprises with tidal current energy generating system genset, rectification circuit, energy-storage travelling wave tube and the inverter be connected successively; Described genset, through rectification circuit output direct current, by the energy-storage travelling wave tube energy storage, then is reverse into three-phase alternating current by inverter, then connect controllable load and carry out the load experiment, or connection short circuit analog module carries out short circuit experiment.
13. the equipment of a 380V/500kW, is characterized in that, described equipment is detection platform claimed in claim 1.
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CN104215849A (en) * 2014-09-02 2014-12-17 北车风电有限公司 Platform and method for simulation testing of tidal current energy power generating device
CN105182104A (en) * 2015-07-24 2015-12-23 中国海洋石油总公司 Wave energy-tidal current energy integrated testing platform and working condition simulation method
CN105182104B (en) * 2015-07-24 2017-12-08 中国海洋石油总公司 A kind of wave energy marine tidal-current energy comprehensive test platform and working condition simulation method
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CN111007331A (en) * 2019-11-25 2020-04-14 国家海洋技术中心 Movable test platform for tidal current energy and wave energy power generation device
CN112230094A (en) * 2020-11-11 2021-01-15 广东电网有限责任公司 Teaching device for simulating power quality
US20230092180A1 (en) * 2021-09-20 2023-03-23 Shelby Kenneth Campbell Tyne Apparatus and associated methods for load bank and power generator control

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