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公开(公告)号：US20150260159A1
公开(公告)日：2015-09-17
申请号：US14634053
申请日：2015-02-27
CPC分类号： F03D7/0284 , F03D7/0276 , F03D9/257 , F03D80/88 , F05B2270/1033 , F05B2270/107 , F05B2270/337 , H02J3/386 , H02P9/00 , H02P21/143 , Y02E10/723 , Y02E10/763
摘要： Inertia control system for a wind turbine comprising a rotor (5), generator (12) driven by the rotor (5) that interacts with a power converter (13) to generate electricity, a wind turbine controller (15) that comprises a blade pitch controller (19) and a generated power controller (18), a controller for the power converter (14) that interacts with the wind turbine controller (15), characterized because it comprises an inertia emulation block (17) that generates an extra power signal (32) negatively proportional to the frequency change rate (23) that is added to the power reference of the wind turbine generated power controller (15) and adapts the rotational speed reference of the wind turbine controller (15) according to the grid frequency (21) to prevent distortion in the active power output after adding or subtracting power in proportion to the frequency change rate (23).
摘要翻译： 一种用于风力涡轮机的惯性控制系统，包括转子（5），由转子（5）驱动的发电机（12），其与功率转换器（13）相互作用以发电;风力涡轮机控制器（15），其包括叶片间距 控制器（19）和生成的功率控制器（18），用于与风力涡轮机控制器（15）相互作用的用于功率转换器（14）的控制器，其特征在于，其包括惯性仿真块（17），其产生额外的功率信号 （32）与所述风力涡轮机发电功率控制器（15）的功率基准相加的频率变化率（23）成负比，并根据电网频率（15）适应风力涡轮机控制器（15）的转速基准 21），以防止与频率变化率（23）成比例地加减功率后的有功功率输出失真。
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公开(公告)号：US20130341922A1
公开(公告)日：2013-12-26
申请号：US13873468
申请日：2013-04-30
IPC分类号： G01R23/167 , F03D9/00
CPC分类号： G01R23/167 , F03D9/25 , F03D9/255 , G01R23/00 , Y02E10/725
摘要： Method and module for measuring the rate of change of frequency of a waveform related to a converter unit of a wind turbine generator, comprising: measuring an instantaneous value of said rate of change of frequency of the waveform, calculating a first filtered value of said rate of change of frequency, said first filtered value having good accuracy but low time response, and calculating a second filtered value of said rate of change of frequency said second filtered value having a good time response but low accuracy, comparing said first and second filtered values and selecting that an output value of said measured rate of change is based on said first or second filtered values depending on said comparison.
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