公开(公告)号：US20150381089A1

公开(公告)日：2015-12-31

申请号：US14765468

申请日：2013-02-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Germán Claudio TARNOWSKI ,  Philip Carne KJÆR ,  Rasmus LÆRKE ,  Florin IOV ,  Remus TEODORESCU ,  Andrzej ADAMCZYK

IPC: H02P9/14 ,  H02J3/24 ,  H02J3/38 ,  H02J3/28

CPC classification number: H02P9/14 ,  F03D7/0284 ,  F03D7/045 ,  F03D9/11 ,  F05B2270/337 ,  F05B2270/404 ,  H02J3/24 ,  H02J3/28 ,  H02J3/38 ,  H02J3/386 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E10/766 ,  Y02E70/30 ,  Y02P90/50

Abstract: The present invention relates to method for operating a power plant, with at least one wind turbine generator arranged for supplying power to an electrical grid, at least one energy storage device arranged for supplying power to the electrical grid, and a power plant controller, the method comprises, measuring repetitively measurement sets of at least one electrical parameter from the electrical grid, and calculating, in respect the measurement sets of the at least one electrical parameter, a change in active and/or a required change in reactive power at a point of common coupling, and calculating and dispatching of a first control reference signal to the at least one wind turbine generator and a second control reference signal to the at least one energy storage device, for providing ancillary service functionalities to the electrical grid. The invention also relates to a power plant with at least one wind turbine generator for supplying power to an electrical grid, at least one energy storage device for supplying power to the electrical grid, and a power plant controller for providing ancillary service functionalities to the electrical grid.

Abstract translation: 本发明涉及一种用于操作发电厂的方法，其中至少一个风力涡轮发电机被布置用于向电网供电，至少一个能够存储供电电力的能量存储装置，以及发电厂控制器， 方法包括：重复地测量来自电网的至少一个电参数的测量集合，并且对于至少一个电参数的测量集合，计算在一个点处的有功和/或无功功率的所需变化 以及向所述至少一个风力涡轮发电机计算和调度第一控制参考信号，以及向所述至少一个能量存储装置计算和调度第二控制参考信号，以向所述电网提供辅助服务功能。 本发明还涉及具有至少一个用于向电网供电的风力涡轮发电机的发电厂，用于向电网供电的至少一个能量存储装置，以及用于向电力系统提供辅助服务功能的发电厂控制器 格。

公开(公告)号：US20160248246A1

公开(公告)日：2016-08-25

申请号：US15026181

申请日：2014-09-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lars HELLE ,  Remus TEODORESCU

IPC: H02H7/26 ,  H02M5/458 ,  F03D9/00 ,  H02H3/08 ,  H02H3/24

CPC classification number: H02H7/26 ,  F03D7/0284 ,  F03D9/255 ,  F05B2260/80 ,  H02H3/083 ,  H02H3/24 ,  H02M5/458 ,  Y02E10/723

Abstract: A wind turbine generator 1 is connected to a section 2 of an electricity grid 3 via a converter 4, which converts the ac output power from the generator into three-phase electric power at the voltage and frequency of the grid 3. The converter 4 comprises silicon carbide transistors which act as ON-OFF switches which are controlled so as to create a voltage profile which is the same as that of the grid voltage. Each grid section 2, 2′ has a respective circuit breaker 10, 10′ which disconnects the associated section from the remainder of the grid 3 in the event of an abnormally high current. The converter 2 includes a fault detector 11 arranged to detect grid faults, such as an abnormally low voltage level which, in response, generates an alarm signal which causes a high-level transient current to be supplied to the grid 3 sufficient to trip the circuit breaker 10′ so as to disconnect the faulty section of the grid. By using silicon carbide transistors, which can withstand high operating temperatures, a higher-level current can be generated than would be the case with converters using conventional silicon transistors.

Abstract translation: 风力发电机1经由转换器4连接到电网3的部分2，转换器4将来自发电机的交流输出功率以电网3的电压和频率转换成三相电力。转换器4包括 用作开关开关的碳化硅晶体管，其被控制以产生与电网电压相同的电压分布。 每个电网部分2,2'都有一个相应的断路器10,10'，它们在异常高电流的情况下将相关部分与电网3的其余部分断开。 转换器2包括故障检测器11，其被布置成检测电网故障，例如异常低的电压电平，其响应地产生报警信号，其引起高电平瞬态电流被提供给电网3，足以使电路跳闸 断路器10'，以便断开电网的故障部分。 通过使用可承受高工作温度的碳化硅晶体管，可以产生比使用常规硅晶体管的转换器情况更高的电流。