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公开(公告)号：EP3552291A1
公开(公告)日：2019-10-16
申请号：EP17808001.6
申请日：2017-11-24
Applicant: Vestas Wind Systems A/S
Inventor： BIRIS, Ciprian , GUPTA, Manoj , MØLLER, Henrik , NAYEBI, Kouroush , SIVASANKARAN, Janakiraman , WEI, Mu , BJØRN, Hans Kristian
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公开(公告)号：EP3371882B1
公开(公告)日：2019-08-14
申请号：EP17726107.0
申请日：2017-05-16
Applicant: Vestas Wind Systems A/S
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公开(公告)号：EP3314710A1
公开(公告)日：2018-05-02
申请号：EP16731502.7
申请日：2016-06-16
Applicant: Vestas Wind Systems A/S
Inventor： ZHOU, Yu , ANDERSEN, Gert Karmisholt , GUPTA, Manoj , GANEPOLA, Vajira Suminda , BIRIS, Ciprian , COVA ACOSTA, Miguel Angel
CPC classification number: F03D7/0264 , F03D9/257 , F05B2220/70646 , F05B2270/107 , F05B2270/309 , F05B2270/335 , F05B2270/337 , G01R19/2513 , G01R23/02 , G05B13/024 , H02H3/46 , H02H7/067 , H02K7/183 , H02P9/006 , H02P9/007 , Y02E10/723 , Y02E10/725
Abstract: A method is provided of protecting a wind turbine with a doubly-fed induction generator (DFIG) against a sub-synchronous resonance (SSR) event acting on the wind turbine. A plurality of power-output values or current-output values is measured over a given period of time that corresponds to a measurement cycle. It is determined whether power-output values or current-output-values measured in the at-least-one measurement cycle are indicative of an SSR-event critical for further operation of the wind turbine. The wind turbine is shut down if the measured power-output values or current-output values are indeed indicative of an SSR-event critical for operation of the wind turbine.
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公开(公告)号：EP3853965A1
公开(公告)日：2021-07-28
申请号：EP19769005.0
申请日：2019-09-11
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： LUND, Torsten , BIRIS, Ciprian , TANGE, Kent , DOAN, Duy Duc , ANDERSEN, Gert Karmisholt
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公开(公告)号：EP3314741A1
公开(公告)日：2018-05-02
申请号：EP16732442.5
申请日：2016-06-09
Applicant: Vestas Wind Systems A/S
Inventor： ANDERSEN, Gert Karmisholt , BIRIS, Ciprian , ZHOU, Yi , GUPTA, Manoj , GANEPOLA, Vajira Suminda , MERRILD, Uffe C.
Abstract: A method is provided of controlling a doubly fed induction generator—(DFIG) wind turbine converter system if a sub-synchronous resonance event acts on the wind turbine. According to the method a sub-synchronous resonance event is detected. Thereupon, a switch from a non-SSR-current/voltage control mode to a SSR-control mode is performed. At least one of the following activities is performed in the SSR-control mode, namely: (i) freezing rotor AC voltages in magnitude and phase, (ii) altering at least one rotor-current-controller gain (iii) altering at least one rotor-current-controller time constant, to dampen the effect of the SSR-event on the wind turbine.
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Patent Agency Ranking26.发明公开
公开(公告)号：EP4094333A1
公开(公告)日：2022-11-30
申请号：EP21701040.4
申请日：2021-01-19
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： SUN, Bo , BIRIS, Ciprian , DINCAN, Catalin Gabriel , KJÆR, Philip Carne
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公开(公告)号：EP3729632A1
公开(公告)日：2020-10-28
申请号：EP18821694.9
申请日：2018-12-06
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： BIRIS, Ciprian , TANGE, Kent , DOAN, Duy Duc , LUND, Torsten , ANDERSEN, Gert Karmisholt
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公开(公告)号：EP3563477A1
公开(公告)日：2019-11-06
申请号：EP17808765.6
申请日：2017-11-29
Applicant: Vestas Wind Systems A/S
Inventor： BIRIS, Ciprian , DOAN, Duy Duc , NIELSEN, John Godsk
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公开(公告)号：EP3371882A1
公开(公告)日：2018-09-12
申请号：EP17726107.0
申请日：2017-05-16
Applicant: Vestas Wind Systems A/S
CPC classification number: H02P9/007 , F03D7/0284 , F05B2270/1071 , H02J3/18 , H02J3/1892 , H02P2207/073 , Y02E40/30
Abstract: Aspects of the present invention relate to a method for controlling an amount of reactive current provided from a wind turbine generator to a power grid during an abnormal power grid event, said wind turbine generator comprising a doubly-fed induction generator having a rotor and a stator, and a power converter coupling the rotor to the power grid, the power converter comprising a grid-side inverter, wherein the method comprises the step of balancing the reactive current provided to the power grid between a reactive stator current and a reactive grid-side inverter current, wherein the reactive grid-side inverter current is controlled in accordance with a reactive current capacity of a grid breaker receiving the reactive current provided by the grid-side inverter. Aspects of the present invention also relate to a wind turbine generator being capable of performing the method.
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公开(公告)号：EP4014308A1
公开(公告)日：2022-06-22
申请号：EP20757525.9
申请日：2020-08-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： GERÇEK, Cem Özgür , HELLE, Lars , BIRIS, Ciprian
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