EP2893632A2 - Vorrichtung und verfahren zur verlängerung der fehlerklärungszeit - Google Patents
Vorrichtung und verfahren zur verlängerung der fehlerklärungszeitInfo
- Publication number
- EP2893632A2 EP2893632A2 EP13762768.3A EP13762768A EP2893632A2 EP 2893632 A2 EP2893632 A2 EP 2893632A2 EP 13762768 A EP13762768 A EP 13762768A EP 2893632 A2 EP2893632 A2 EP 2893632A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical loads
- transformer
- generator
- short circuit
- electric generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 238000005352 clarification Methods 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
- H02H7/067—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors on occurrence of a load dump
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
Definitions
- the invention relates to a device for extending the time of error clearance and to a method for extending the time of error clearance.
- the power resynchronization process may take several minutes during which the power plant power to the grid is unavailable. This can lead to network instability especially in the case of failure of larger power plants and in the worst case to a large-scale power failure.
- a device for extending the error explanation time comprising an electric generator, in particular synchronous generator and electrical loads and a component designed to detect a short circuit ⁇ if, wherein the device is designed such that in case of short circuit, the electrical loads with the electric Generator are connected.
- the electrical loads are designed as resistors.
- the ⁇ thanks Ge is followed, to arrange resistors which are short-circuited ⁇ case connected as electrical loads to the electric generator and so as switchable load resistors which dissipate in case of failure to the shaft acceleration contributing Turbi ⁇ nen inconvenience without disconnecting the generator from the grid.
- the critical fault clearing time is significantly extended ver ⁇ .
- the device with a transformer which is connected to the electric generator, formed, wherein the electrical loads are arranged parallel to the transformer during the short circuit.
- the device is designed with electrical loads, wherein the electrical loads are arranged serially to the short circuit path in the transformer star point on the high voltage side.
- the resulting sudden generator short-circuit is composed of an AC and a DC current component, which decay at different speeds to the stationary short-circuit current according to their time constants.
- the DC component of the short-circuit current is responsible ⁇ sible that the current path is experiencing a current zero after a few milliseconds. After opening the performance-switch of the switching arc burns until the ⁇ ser first current zero crossing occurs and the arc may be extinguished. During this time, due to the extremely hot arc plasma, the switch experiences considerable contact stress and thermal heat generation. It is therefore desirable that the DC component of the Kurz gleichstro ⁇ mes subsides as soon as possible.
- the time constant (T) is described by the ratio of the inductance (L) in the short circuit path and the resistance (R) acting in the short circuit path.
- the formula T L / R makes it clear that the time constant can be lowered with increasing effective resistance. This can be effectively accelerated by switching on the load resistors described here after the fault has occurred.
- the object is also achieved by a method for increasing the time of error elimination, wherein the electrical generator connected to an electrical consumer network in the short-circuit Final case is interconnected with additional electrical loads.
- FIG. 2 shows a first embodiment of the invention shown SEN device
- Figure 3 shows a second embodiment of the erfindungsge ⁇ MAESSEN device.
- FIG. 2 shows a three-phase electrical generator 5, in particular a synchronous generator, wherein a first phase 6, a second phase 7 and a third phase 8 are formed at the output.
- the first 6, second 7 and third phases 8 are connected to a transformer 9.
- the secondary side 10 of the transformer 9 is connected to an electrical network 11.
- a first drain 12 is provided, to which a first switch 13 and electrical loads 14 are connected to earth 15.
- the second phase 7 includes a second discharge conduit 16 and connected to the second discharge conduit 16 and a second switch 17 connected to ground 15 load 18.
- the third stage 8 comprises a third branch 19 and a corresponding drit ⁇ th switch 20 and a Last 21, which in turn is connected to earth 15.
- the phases 6, 7 and 8 are connected via the generator switch 25 to the transformer 9.
- FIG. 3 shows an alternative embodiment of the invention.
- the difference from FIG. 2 is that the loads 14, 18 and 21 are located in series with the short-circuit path in the transformer star point on the high-voltage side. Parallel to the loads 14, 18 and 21, a respective switch 22, 23 and 24 is arranged.
- the electric generator 5 is driven by a turbine (not shown).
- the turbine power impressed into the shaft is switched on by the generator 5 via switchable loads 14, 18, 21 until the power returns, and converted into heat.
- ⁇ impressed on the shaft turbine power is to return from the power generator 5 is electrically removed and converted into heat via switchable loads 14, 18 and 21st
- the electrical generator 5 with the elekt ⁇ generic network 11 remains connected. A network resynchronization is thus eliminated and it can be achieved a higher power plant availability.
- the critical for each strand fault clearing time T Ku without additional loads can be general ⁇ my correspond to the following formula to determine analytically:
- the loads 14, 18 and 21, which may be configured as electrical resistors, perform the turbine power contributing to the shaft acceleration in the event of a fault, thereby significantly increasing the critical fault clearing time and thereby increasing the transient stability of the electric generator 5, in particular synchronous generator in the In the event of a short circuit, load resistors 14, 18 and 21 can be connected.
- the load resistors 14, 18 and 21 shown in FIG. 2 are connected in parallel to the transformer 9 on the transformer undervoltage side, around the short-circuit residual voltage present in the event of a short-circuit over the transformer longitudinal impedance to use.
- the additional use of adjustable reactances can even improve the reactivity of the circuit. 2 shows the topology to this first execution ⁇ of the invention.
- the topology of the second embodiment is shown in FIG.
- the load resistors 14, 18 and 21 are located in series with the short circuit path in the transformer neutral point on the high voltage side. They are connected by opening the parallel switches 22, 23, 24 in the short circuit.
- the critical fault clearing time can be significantly increased without constructional changes to ⁇ n ⁇ must make to turbine and generator 5, resulting in a cost measure of the invention shown here.
- no network separation during the temporary short-circuit is required, so that a permanent availability of the electric generator 5 can be realized without resynchronization.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012221989 | 2012-11-30 | ||
PCT/EP2013/068385 WO2014082766A2 (de) | 2012-11-30 | 2013-09-05 | Vorrichtung und verfahren zur verlängerung der fehlerklärungszeit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2893632A2 true EP2893632A2 (de) | 2015-07-15 |
Family
ID=49182217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13762768.3A Withdrawn EP2893632A2 (de) | 2012-11-30 | 2013-09-05 | Vorrichtung und verfahren zur verlängerung der fehlerklärungszeit |
Country Status (5)
Country | Link |
---|---|
US (1) | US9564750B2 (de) |
EP (1) | EP2893632A2 (de) |
JP (1) | JP6077131B2 (de) |
CN (1) | CN104823375B (de) |
WO (1) | WO2014082766A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104769837B (zh) * | 2012-11-20 | 2017-10-10 | 维斯塔斯风力系统集团公司 | 用于减少在风力涡轮中的发电机短路的影响的方法和系统 |
CN107534405B (zh) * | 2015-03-17 | 2020-10-02 | Abb瑞士股份有限公司 | 励磁系统 |
EP3157161B1 (de) * | 2015-10-12 | 2019-03-20 | Siemens Aktiengesellschaft | Verfahren zur steuerung einer windkraftanlage |
CN107592045B (zh) * | 2017-10-31 | 2024-03-19 | 江苏瑞昌哥尔德发电设备股份有限公司 | 一种切换发电机电压输出的接线装置 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2115807C3 (de) * | 1971-04-01 | 1974-10-17 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Erdschlußschutzeinrichtung für elektrische Geräte mit in Stern geschalteten Wicklungen |
NL161628C (nl) * | 1974-08-22 | 1980-02-15 | Heemaf Nv | Borstelloze draaistroomgenerator met een inrichting voor zelfbekrachtiging en automatische regeling van de bekrachtigingsstroom. |
JPS58136299A (ja) * | 1982-02-05 | 1983-08-13 | Toshiba Corp | 超電導発電機の減磁装置 |
US4511807A (en) * | 1982-04-20 | 1985-04-16 | Northern Engineering Industries Plc | Electrical generator control system |
DE4307268A1 (de) * | 1993-03-02 | 1994-09-08 | Siemens Ag | Bürstenloser Synchrongenerator |
JP2000179446A (ja) * | 1998-12-11 | 2000-06-27 | Hiroaki Sano | 小型風力発電系統連系システム及びその自動運転用保護装置 |
DE10134883A1 (de) * | 2001-07-18 | 2003-01-30 | Abb Research Ltd | Verfahren und Vorrichtung zur drehzahlstellbaren leistungselektronischen Regelung einer getriebelosen Windkraftanlage |
JP2003056450A (ja) * | 2001-08-09 | 2003-02-26 | Kawamura Electric Inc | 風力発電設備 |
JP2003189697A (ja) * | 2001-12-19 | 2003-07-04 | Kokusan Denki Co Ltd | 交流発電機を備えた電源装置 |
WO2003065567A1 (de) * | 2002-01-29 | 2003-08-07 | Vestas Wind Systems A/S | Schaltungsanordnung zum einsatz bei einer windenergieanlage |
US7015595B2 (en) * | 2002-02-11 | 2006-03-21 | Vestas Wind Systems A/S | Variable speed wind turbine having a passive grid side rectifier with scalar power control and dependent pitch control |
CN101048933B (zh) | 2004-10-28 | 2011-03-23 | 阿尔斯通技术有限公司 | 发电机的静态励磁系统以及此类励磁系统的操作方法 |
US7276807B2 (en) * | 2006-01-19 | 2007-10-02 | General Electric Company | Wind turbine dump load system and method |
DE102006010537B4 (de) | 2006-03-07 | 2009-06-10 | Siemens Ag | Dieselelektrisches Antriebssystem mit einem permanent erregten Synchrongenerator |
DE102006051546A1 (de) | 2006-11-02 | 2008-05-08 | Nordex Energy Gmbh | Verfahren zum Betrieb einer Windenergieanlage mit einem doppelt gespeisten Asynchrongenerator sowie Windenergieanlage mit einem doppelt gespeisten Asynchrongenerator |
EP2392069A2 (de) * | 2009-01-30 | 2011-12-07 | DeWind Co. | Windturbine mit lvrt-fähigkeiten |
JP5443014B2 (ja) * | 2009-02-13 | 2014-03-19 | 株式会社日立製作所 | 風力発電装置および風力発電装置の制御方法 |
ES2325729B2 (es) * | 2009-02-19 | 2010-09-27 | Universidad Politecnica De Madrid | Sistema de desexcitacion rapida para maquinas sincronas con excitacionindirecta. |
EP2589129B1 (de) * | 2010-06-30 | 2019-09-18 | Vestas Wind Systems A/S | Windturbine |
EP2486274B1 (de) * | 2010-11-30 | 2016-01-20 | MITSUBISHI HEAVY INDUSTRIES, Ltd. | Vorrichtung zur stromerzeugung aus erneuerbarer energie und betriebsverfahren dafür |
KR101725551B1 (ko) * | 2011-01-14 | 2017-04-11 | 매그나칩 반도체 유한회사 | 백라이트 구동회로 및 이를 적용한 디스플레이 장치 |
EP2476900A1 (de) | 2011-01-18 | 2012-07-18 | Siemens Aktiengesellschaft | Windturbine |
CN202503279U (zh) * | 2012-03-26 | 2012-10-24 | 上海市电力公司 | 一种主变中性点直流电流限制装置 |
CN102738829B (zh) * | 2012-06-30 | 2015-06-17 | 广东明阳风电产业集团有限公司 | 一种变频控制风力发电系统的拓扑结构 |
CN102728829B (zh) | 2012-07-12 | 2014-06-18 | 安徽精诚铜业股份有限公司 | 一种合金液流量控制装置 |
CN104769837B (zh) * | 2012-11-20 | 2017-10-10 | 维斯塔斯风力系统集团公司 | 用于减少在风力涡轮中的发电机短路的影响的方法和系统 |
JP2014166033A (ja) * | 2013-02-25 | 2014-09-08 | Toyota Motor Corp | 電源装置 |
US10483865B2 (en) * | 2013-10-18 | 2019-11-19 | Vestas Wind Systems A/S | Converters for wind turbine generators |
-
2013
- 2013-09-05 CN CN201380062802.9A patent/CN104823375B/zh not_active Expired - Fee Related
- 2013-09-05 WO PCT/EP2013/068385 patent/WO2014082766A2/de active Application Filing
- 2013-09-05 EP EP13762768.3A patent/EP2893632A2/de not_active Withdrawn
- 2013-09-05 JP JP2015544384A patent/JP6077131B2/ja not_active Expired - Fee Related
- 2013-09-05 US US14/443,387 patent/US9564750B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014082766A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN104823375B (zh) | 2017-09-12 |
WO2014082766A2 (de) | 2014-06-05 |
WO2014082766A3 (de) | 2014-08-14 |
US9564750B2 (en) | 2017-02-07 |
US20150303681A1 (en) | 2015-10-22 |
JP6077131B2 (ja) | 2017-02-08 |
JP2015535679A (ja) | 2015-12-14 |
CN104823375A (zh) | 2015-08-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2096732B1 (de) | Energiesystem umfassend eine Wind- oder Wasserkraftturbine | |
EP1312153B1 (de) | Windenergieanlage | |
WO2011154319A2 (de) | Windenergieanlage und verfahren zum betreiben einer windenergieanlage | |
EP3109966B1 (de) | Windparkanbindung mit diodengleichrichter | |
DE102013103753A1 (de) | Photovolatische energieerzeugungsanlage und verfahren zum betreiben einer pv-anlage | |
WO2010037537A1 (de) | Windenergieanlagenprüfeinrichtung | |
EP2823543B1 (de) | Verfahren zur verwendung einer elektrischen einheit | |
DE102010055550A1 (de) | Wechselrichter, Energieerzeugungsanlage und Verfahren zum Betrieb einer Energieerzeugungsanlage | |
EP2408081A1 (de) | Modularer Multiniveau Umrichter | |
EP3602768B1 (de) | Windpark mit mehreren windenergieanlagen | |
EP2713477B1 (de) | Verfahren zum Betreiben einer elektrischen Schaltung für einen Windpark | |
WO2014082766A2 (de) | Vorrichtung und verfahren zur verlängerung der fehlerklärungszeit | |
WO2020052936A1 (de) | Windpark mit einer leistungsflusseinheit sowie eine solche leistungsflusseinheit | |
EP1513251B1 (de) | Verfahren und Vorrichtung zum Betrieb einer doppelt gespeisten Drehstrommaschine als Generator in einer Windkraftanlage | |
AT510119B1 (de) | Differenzialgetriebe für eine windkraftanlage und verfahren zum betreiben dieses differenzialgetriebes | |
DE102013111869A1 (de) | Photovoltaikanlage und Vorrichtung zum Betreiben einer Photovoltaikanlage | |
WO2012001135A2 (de) | Drehzahlvariabler generator für eine windkraftanlage und verfahren zum betreiben dieses generators | |
EP3843227A1 (de) | Doppelt-gespeiste windenergieanlage mit einem mittelspannungstransformator | |
AT524421B1 (de) | Verfahren zur zeitstaffelungsschutzkompatiblen selektiven netzkurzschlusserkennenden Überwachung des Betriebes eines elektrischen Energienetzes | |
DE102011003459A1 (de) | Elektrische Schaltung für einen Windpark | |
DE588519C (de) | Verfahren zur Vermeidung des Aussertrittfallens von parallel arbeitenden Synchronmaschinen | |
DE102018209056A1 (de) | Leistungserzeugungseinrichtung zur Erzeugung elektrischer Leistung, Stromnetz mit einer solchen Leistungserzeugungseinrichtung, und Verfahren zum Betreiben einer solchen Leistungserzeugungseinrichtung an einem Stromnetz | |
DE102012208946A1 (de) | Vorrichtung und Verfahren zum Anfahren eines Generators | |
EP4320700A1 (de) | Schaltanordnung und verfahren zum zuschalten einer stromerzeugungsanlage zu einem stromverteilernetz und zum trennen von diesem | |
DE10353896A1 (de) | Frequenzumrichter für eine statische Hochfahrvorrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20150409 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
17Q | First examination report despatched |
Effective date: 20180515 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20190508 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20190919 |