EP3909107A1 - Éolienne - Google Patents
ÉolienneInfo
- Publication number
- EP3909107A1 EP3909107A1 EP20700197.5A EP20700197A EP3909107A1 EP 3909107 A1 EP3909107 A1 EP 3909107A1 EP 20700197 A EP20700197 A EP 20700197A EP 3909107 A1 EP3909107 A1 EP 3909107A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- network
- module
- wind turbine
- interference
- electrical
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000001276 controlling effect Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000009849 deactivation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 abstract description 12
- 238000011105 stabilization Methods 0.000 abstract description 12
- 230000007257 malfunction Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/028—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
- F03D7/0284—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power in relation to the state of the electric grid
-
- 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
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/50—Controlling the sharing of the out-of-phase component
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Definitions
- the invention relates to a wind turbine with a generator, a converter connected to the generator, which are seen in the event of detected malfunctions in the electrical network to counteract the disturbances in the network.
- Wind turbines are an essential energy source for the energy supply in the electrical network and will make an ever greater contribution in the future.
- the power available from wind turbines can only be planned to a limited extent.
- the requirements of the operators of electrical networks on the wind energy plants have increased and are being continuously developed.
- wind turbines must be able to go through voltage drops of up to 0% of the nominal voltage in the grid without disconnection from the grid and at the same time feed reactive power or reactive current into the grid to counteract the drop in the grid voltage. It is also required that wind turbines must also be tolerant of changes in the grid frequency, for example in a range from 46.5 Hz to 53.5 Hz of a 50 Hz grid. At the same time, if a threshold frequency of, for example, 50.1 Hz is exceeded, the active power output of the wind energy installation must be reduced.
- the object of the present invention is to avoid the above disadvantages.
- a wind power plant comprising a converter connected to a generator that feeds at least a portion of the energy generated by the electrical generator into an electrical network, sensors for faults in the electrical network, a controller module for controlling the converter and / or the wind power plant, wherein the controller module comprises a network fault module, which is provided in the event of detected faults in the electrical network to counteract the faults, provided that the controller module comprises an override module, which is designed, in the event of a known fault in the network, the network fault module at least partially disable.
- the invention has recognized that conventional power plants cannot react to rapid disturbances in the network due to their inertia by a rapid change in the active power feed-in.
- the conventional power plant has only the change in voltage to quickly regulate the active power balance, so that, assuming predominantly ohmic consumers, the consumption can be changed briefly until the active power output of the conventional power plant has reached new setpoints.
- Wind turbines are designed to keep the voltage at their feed-in point as constant as possible, and this is achieved by means of a voltage-controlled reactive power output. This voltage regulation of the wind energy plants is quick compared to the active power regulation of the power plant.
- the change in voltage can be at least partially compensated for by the wind turbines in unfavorable situations, so that the control strategy of the power plant is not sufficiently effective and the grid is not stabilized or the grid error is not compensated .
- the wind power installation according to the invention improves these situations by recognizing from the course of the fault that at least parts of its own network stabilization functions do not counteract the malfunction and in this special situation it deactivates the network stabilization functions which are respectively harmful and / or ineffective in relation to the disturbance (and on effective grid stabilization functions can be activated).
- the invention starts at the point that for an analysis of whether the respective network stabilization function should remain activated in the particular fault situation in the network, the time The course of the voltage parameters, voltage level and frequency, as well as reactive and active current feed-in of the wind power plant must be evaluated. From the respective courses it can be recognized whether and which network stabilization function must remain deactivated or should remain activated.
- a grid stabilization function can be, for example, any function that primarily aims to influence the voltage level or voltage frequency at the measuring point.
- a disturbance in the network means any change in the quantities measured in the electrical network in which the value of the quantity leaves a predefined limit value interval or the change gradient of the quantity exceeds a certain level.
- the term disturbance should also include the occurrence of a predefined sequence of events or the exceeding of the entry frequency of a predefined event.
- reactive power can also be understood as the reactive current, the fundamental vibration shift factor, power factor or phase angle.
- the network interference module preferably comprises at least one frequency interference module for regulating the active power output as a function of the frequency in the network and a reactive power disturbance module for regulating the reactive power as a function of the voltage in the network, the override module being designed to individually and independently of each module of the network interference module deactivate.
- the controller module comprises a signal input which, when the signal is present, activates the override module in such a way that it at least partially deactivates the network disturbance module.
- the invention further relates to a method for controlling a wind turbine.
- the invention is described below with reference to the accompanying drawings using an advantageous embodiment as an example. With regard to all details according to the invention not explained in more detail in the text, reference is expressly made to the drawings. Show it:
- Figure 1 is a wind turbine
- FIG. 2 shows the converter controller according to the invention.
- the structure of the wind turbine is briefly explained with reference to Figure 1.
- the wind rotor 2 of the wind turbine 1 is rotated by the wind.
- the wind rotor 2 is mechanically connected to the generator 4 via a gear 3 and rotates the rotor 6 of the generator 4.
- the stator 5 of the generator is connected to the electrical network 10 via power cables in the tower 13, a transformer 8 and a disconnector 9.
- the rotor 6 of the generator 4 is connected to a converter 7, which in turn is also connected to the electrical network 10 via power cables in the tower 14, a transformer 8 and a disconnector 9.
- the converter 7 has a converter control 20 which controls the converter 7.
- Measuring sensors 31 are arranged on the power cables 13, 14 in order to measure the electrical quantities of the network 10 and to pass them on to the converter control 20 via measuring lines. If a fault in the electrical variables of the network 10 is determined, a network fault module 25 can be activated in the converter control, which can be deactivated by the override module 26.
- FIG. 2 shows the basic structure of a wind turbine according to the invention.
- a converter 7 with a generator-side inverter 71, a DC voltage intermediate circuit 73 and a grid-side inverter 72 is connected to the generator 4.
- the DC voltage intermediate circuit 73 comprises, in a manner known per se, a capacitor 82 as an energy store and a chopper 81 as a safety device.
- a choke 12 is arranged at the output of the network-side alternator 72.
- the converter 7 is regulated by a controller 20.
- the normal control module 24 uses the values measured by the sensors 31, 32 to determine the target values for the reactive and active powers and passes them on to the power controller 27, which regulates the target values via the individual converter controllers 21, 22.
- the network disturbance module 25 comprises modules 25a, 25b for voltage-dependent reactive power control or frequency-dependent active power control, wherein control modules can be stored in these modules 25a, 25b, which correspond to the specifications of the operator of the network 10 for faults.
- the override module 26 If there is a malfunction in the network in which the network malfunction module 25 is to be activated by the decision module 41, the override module 26 simultaneously determines whether there is a malfunction in which an activation of the network malfunction module 25 would not stabilize the network. If the override module 26 detects such a malfunction, it can bridge at least parts of the network malfunction module (by means of override switches 42a, 42b) and thus prevent control intervention on the network parameters by the bridged function.
- the power controller 27 does not receive any new setpoints and the converter 7 does not change its output currents.
- the override module 26 acts on the decision module 41 in such a way that at least parts of the control loop are controlled by the normal control module 24, so that despite the faults in the network 10, the regulation of the electrical variables is functional.
- the override module 26 is additionally configured such that it can at least indirectly receive signals from the control of the wind farm 29 or via a signal input 28 from the operator of the network 10.
- the override module 26 can be activated or deactivated via these signals, so that optimum network support from the wind energy installation 1 is always guaranteed from the outside.
- the control of the wind farm 29 has its own sensors 32, which are located upstream of the wind energy installation in the network 10 and which detect a malfunction in the network 10 earlier or more directly or the effect of the energy output by the wind energy installation 1 Can control services, so that the control of the wind farm 29 can specifically activate or deactivate the network fault module 25.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019000025.0A DE102019000025A1 (de) | 2019-01-07 | 2019-01-07 | Windenergieanlage |
PCT/EP2020/050193 WO2020144169A1 (fr) | 2019-01-07 | 2020-01-07 | Éolienne |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3909107A1 true EP3909107A1 (fr) | 2021-11-17 |
Family
ID=69143602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20700197.5A Pending EP3909107A1 (fr) | 2019-01-07 | 2020-01-07 | Éolienne |
Country Status (5)
Country | Link |
---|---|
US (1) | US11920568B2 (fr) |
EP (1) | EP3909107A1 (fr) |
CN (1) | CN113261170A (fr) |
DE (1) | DE102019000025A1 (fr) |
WO (1) | WO2020144169A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019000025A1 (de) | 2019-01-07 | 2020-07-09 | Senvion Gmbh | Windenergieanlage |
CN112510979B (zh) * | 2020-11-25 | 2022-11-01 | 上海电气风电集团股份有限公司 | 变流器容错控制方法、系统及风力发电机组 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010056457A1 (de) | 2010-12-29 | 2012-07-05 | Repower Systems Ag | Windpark und Verfahren zum Betreiben eines Windparks |
US9631608B2 (en) * | 2012-06-12 | 2017-04-25 | Vestas Wind Systems A/S | Wind-power-plant control upon low-voltage grid faults |
DE202013009042U1 (de) * | 2013-01-24 | 2014-09-09 | Ernst Manner | Sensortelemetrie mit integriertem Komplettmonitoring und Remotesteuerfunktion für Anwendung zur kontaktlosen Sensordatenübertragung |
US9570916B2 (en) | 2013-10-15 | 2017-02-14 | Siemens Aktiengesellschaft | Inertial response function for grids with high turbine penetration |
EP3012938A1 (fr) | 2014-10-24 | 2016-04-27 | Siemens Aktiengesellschaft | Procédé pour stabiliser une grille électrique |
ES2811843T3 (es) * | 2014-10-24 | 2021-03-15 | Vestas Wind Sys As | Método para operar una planta de energía eólica en un entorno de red de distribución débil y una planta de energía eólica |
DK3157161T3 (da) | 2015-10-12 | 2019-05-20 | Siemens Ag | Fremgangsmåde til styring af en vindkraftinstallation |
CN107785909B (zh) * | 2016-08-24 | 2021-07-06 | 成都阜特科技股份有限公司 | 一种风电场无功电压协调控制方法 |
DK3318751T3 (da) * | 2016-11-08 | 2021-08-30 | Siemens Gamesa Renewable Energy As | Dæmpning af mekaniske svingninger hos en vindmølle |
KR102577911B1 (ko) * | 2018-11-16 | 2023-09-14 | 상라오 징코 솔라 테크놀러지 디벨롭먼트 컴퍼니, 리미티드 | 전력변환장치, 이를 구비하는 태양광 모듈, 및 태양광 시스템 |
DE102019000025A1 (de) | 2019-01-07 | 2020-07-09 | Senvion Gmbh | Windenergieanlage |
-
2019
- 2019-01-07 DE DE102019000025.0A patent/DE102019000025A1/de active Pending
-
2020
- 2020-01-07 CN CN202080008035.3A patent/CN113261170A/zh active Pending
- 2020-01-07 WO PCT/EP2020/050193 patent/WO2020144169A1/fr unknown
- 2020-01-07 EP EP20700197.5A patent/EP3909107A1/fr active Pending
- 2020-01-07 US US17/420,923 patent/US11920568B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11920568B2 (en) | 2024-03-05 |
US20220069584A1 (en) | 2022-03-03 |
DE102019000025A1 (de) | 2020-07-09 |
CN113261170A (zh) | 2021-08-13 |
WO2020144169A1 (fr) | 2020-07-16 |
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Legal Events
Date | Code | Title | Description |
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STAA | Information on the status of an ep patent application or granted ep patent |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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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 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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17P | Request for examination filed |
Effective date: 20210802 |
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AK | Designated contracting states |
Kind code of ref document: A1 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 |
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RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS GAMESA RENEWABLE ENERGY SERVICE GMBH |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |