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公开(公告)号：US20210184462A1
公开(公告)日：2021-06-17
申请号：US16638670
申请日：2018-07-05
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Janakiraman SIVASANKARAN , Anoop Vijay TIWARI
Abstract: A method for controlling a renewable energy power plant comprising a plurality of renewable energy generators, the method comprising: carrying out the following steps dynamically: determining a reactive power capability value of the power plant based on the generated active power of each of the renewable energy generators within the power plant; determining a reactive power exchange limit value based on a measured grid voltage level; and controlling the power plant so that the generated reactive power does not exceed the lower of the determined reactive power capability value and the determined reactive power exchange limit value that are determined dynamically.
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公开(公告)号：US20210143642A1
公开(公告)日：2021-05-13
申请号：US16618689
申请日：2018-05-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Ravi KUMAR , Janakiraman SIVASANKARAN , Mario Dante JARDIEL , Anoop Vijay TIWARI , Kouroush NAYEBI
Abstract: There is provided a method of operating a renewable power plant that is connected to a wider power network by a bus. The method comprises: identifying a predetermined voltage condition of the renewable power plant or of the bus; controlling the renewable power plant to maintain zero reactive power exchange at the bus for a first period; calculating an average voltage level of the bus that was achieved during the first period; and controlling the renewable power plant to maintain the voltage output at a set voltage level for a second period, the set voltage level being substantially equal to the calculated average voltage level. The method ensures that voltage oscillations due to a push-pull phenomenon between a power plant controller and the power network do not upset the stability of the grid.
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公开(公告)号：US20200076193A1
公开(公告)日：2020-03-05
申请号：US16468251
申请日：2017-11-24
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Ciprian BIRIS , Manoj GUPTA , Henrik MØLLER , Kouroush NAYEBI , Janakiraman SIVASANKARAN , Mu WEI , Hans Kristian BJØRN
Abstract: A wind power plant system comprising: a plurality of wind turbine generators each having a corresponding generator controller, and a power plant controller for controlling the power generated by the wind power plant system; wherein at least some of the plurality of generator controllers are each configured to: generate a model that indicates the thermal capacity of one or more components of the wind turbine generator, determine power capacity data from the model, said data relating to: at least one reactive power supply level and a corresponding time limit for which that reactive power supply level may be maintained, and transmit to the power plant controller the determined power capacity data, wherein the power plant controller is operable to receive the power capacity data from the plurality of generator controllers and to transmit respective power references to the plurality of generator controllers to control the power generated by the wind power plant system.
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14.发明申请A WIND POWER PLANT, AND A METHOD FOR CONTROLLING A REACTIVE CURRENT INJECTION IN A WIND POWER PLANT 审中-公开风力发电厂和控制风力发电厂的反应性电流注入的方法公开(公告)号：US20160322821A1
公开(公告)日：2016-11-03
申请号：US15103725
申请日：2014-11-25
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Abdul SABOOR , Manoj GUPTA
CPC classification number: H02J3/16 , F03D7/0284 , F03D7/048 , F05B2270/337 , H02J3/381 , H02J3/386 , H02J3/50 , Y02E10/723 , Y02E10/763 , Y02E40/34
Abstract: In various embodiments of the present disclosure, there is provided a method for controlling a reactive current injection in a wind power plant during a grid fault. According to an embodiment, the method includes measuring an amount of reactive current to be provided by the wind power plant to the grid during the grid fault. The method further includes determining a difference between a given required reactive current contribution from the wind power plant and the amount of reactive current to be provided by the wind power plant to the grid during the grid fault. According to an embodiment, the method includes controlling a plurality of wind turbine generators in the wind power plant to generate additional reactive current according to a reactive current reference generated based on the difference. A corresponding wind power plant is further provided.
Abstract translation: 在本公开的各种实施例中，提供了一种用于在电网故障期间控制风力发电厂中的无功电流注入的方法。 根据实施例，该方法包括在电网故障期间测量由风力发电站提供给电网的无功电流的量。 该方法还包括确定风力发电厂给定的所需无功电流贡献与在电网故障期间由风力发电厂提供给电网的无功电流量之间的差异。 根据实施例，该方法包括控制风力发电厂中的多个风力涡轮发电机，以根据基于该差产生的无功电流参考来产生额外的无功电流。 进一步提供相应的风力发电厂。
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公开(公告)号：US20150369217A1
公开(公告)日：2015-12-24
申请号：US14765938
申请日：2013-02-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Dilip Kumar GURU , Amit Kumar GUPTA
CPC classification number: F03D7/048 , F03D7/0272 , F03D9/257 , G05B23/0235 , H01H71/10 , H01H81/00 , H02H3/006 , H02H3/025 , H02H3/08 , H02H7/093 , H02H7/30 , H02J3/16 , H02J3/18 , H02J3/38 , H02J3/381 , H02J3/382 , H02J3/386 , H02P9/006 , Y02E10/563 , Y02E10/763 , Y02E40/34
Abstract: A method of operating a wind turbine plant is provided. Such a wind turbine plant comprises at least one transmission branch comprising a plurality of wind turbine generators and coupled to an electrical grid at a point of common coupling through at least one circuit breaker comprising a breaking capacity. The method comprises monitoring the electrical grid for a low voltage fault event; and if a low voltage fault event is detected: calculating a grid short circuit strength, determining a short circuit current limit if the grid short circuit strength requires an initial fault current contribution which exceeds the breaking capacity of the circuit breaker to be passed through the circuit breaker, determining a maximum fault current contribution based on the short circuit current limit and operating the wind turbine generators to provide to the electrical grid the maximum fault current contribution.
Abstract translation: 提供了一种操作风力涡轮机设备的方法。 这种风力涡轮机设备包括至少一个包括多个风力涡轮发电机的传输分支，并且通过包括断路能力的至少一个断路器在公共耦合点处耦合到电网。 该方法包括监测低压故障事件的电网; 并且如果检测到低电压故障事件：计算电网短路强度，如果电网短路强度需要超过断路器通过电路的分断能力的初始故障电流贡献，则确定短路电流限制 断路器，基于短路电流限制确定最大故障电流贡献，并操作风力涡轮发电机以向电网提供最大故障电流贡献。
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240120740A1
公开(公告)日：2024-04-11
申请号：US18263879
申请日：2022-01-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Bo YIN , Torsten LUND , Gert Karmisholt ANDERSEN , Kouroush NAYEBI , Manoj GUPTA
CPC classification number: H02J3/1878 , F03D7/0284
Abstract: The invention relates to wind turbines, particularly to controlling reactive power exchange between a power grid and a wind power plant. The wind power plant has a plurality of wind turbine generators each having a corresponding power converter with a converter controller. Further, the wind power plant has a power plant transformer with an on load tap changer coupled between the wind power plant and the power grid. The power plant controller is regulating the on load tap changer and is generating reactive component setpoints for the wind turbine generators, when determining a need for production of short-term reactive power due to a sudden change in reactive power measured at the point of common coupling.
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17.发明申请公开(公告)号：US20200313440A1
公开(公告)日：2020-10-01
申请号：US16307099
申请日：2017-05-31
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Ravi KUMAR , Kouroush NAYEBI , Vajira Suminda GANEPOLA
Abstract: A power plant control system for a first renewable energy power plant comprising one or more renewable energy generators. The power plant control system comprises receiving means for receiving a power delivery demand from a transmission grid operator; control means configured to control the one or more renewable energy generators of the first renewable energy power plant so as to supply power that targets the received power delivery demand; and communication means configured to transmit a request to one or more further renewable energy power plant control systems to request operation of one or more power compensation units associated with respective ones of the further renewable energy power plants.
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18.发明申请公开(公告)号：US20190085824A1
公开(公告)日：2019-03-21
申请号：US16083322
申请日：2017-03-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Rubin PANNI , Yuchao MA , Dumitru-Mihai VALCAN , Rasmus LÆRKE
Abstract: Controlling a first renewable energy power plant by determining power delivery of the first renewable energy power plant to a collector bus; receiving data relating to power delivery from a second renewable energy power plant connected to the collector bus; determining the combined power delivery of the first and second renewable energy power plants to the collector bus; estimating the transmission line power loss on a first transmission line between the collector bus and a power grid point of interconnection (POI) based on the combined power delivery; and regulating the power delivery from the first renewable energy power plant to compensate for the estimated transmission line power loss.
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公开(公告)号：US20180159453A1
公开(公告)日：2018-06-07
申请号：US15575618
申请日：2016-06-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Gert Karmisholt ANDERSEN , Ciprian BIRIS , Yi ZHOU , Manoj GUPTA , Vajira Suminda GANEPOLA , Uffe C. MERRILD
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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20.发明申请WIND POWER PLANT, AND A METHOD FOR INCREASING THE REACTIVE POWER CAPABILITY OF A WIND POWER PLANT 审中-公开风力发电厂，以及一种提高风力发电厂反应能力的方法公开(公告)号：US20160308369A1
公开(公告)日：2016-10-20
申请号：US15103745
申请日：2014-11-25
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Abdul SABOOR
CPC classification number: H02J3/386 , F03D7/0284 , F03D7/042 , F03D7/048 , F03D9/257 , F05B2270/1033 , F05B2270/335 , F05B2270/337 , H02J3/16 , H02K7/183 , H02P9/102 , Y02E10/723 , Y02E10/763 , Y02E40/34
Abstract: In various embodiments of the present disclosure, there is provided a method for increasing the reactive power capability of a wind power plant, in controlling a wind power plant. According to an embodiment, the method includes receiving a reactive power requirement from an electrical grid. The method further includes determining an active power generated by the wind power plant. According to an embodiment, the method includes checking if the reactive power requirement is satisfied by the wind power plant based on the active power generated by the wind power plant. The method further includes controlling the wind power plant to curtail the active power generated by the wind power plant by a curtailment amount when the reactive power requirement is not satisfied, and in response to a grid event. A corresponding wind power plant is further provided.
Abstract translation: 在本公开的各种实施例中，提供了一种用于在控制风力发电厂中增加风力发电厂的无功功率能力的方法。 根据实施例，该方法包括从电网接收无功功率需求。 该方法还包括确定由风力发电厂产生的有功功率。 根据实施例，该方法包括基于风力发电厂产生的有功功率来检查风力发电厂是否满足无功功率需求。 该方法进一步包括：当无功功率要求不满足时，以及响应于电网事件，控制风力发电厂减少由风力发电厂产生的有功功率削减量。 进一步提供相应的风力发电厂。
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