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    • 5. 发明公开
    • A method for charging a DC link of a wind turbine power electronic converter
    • Verfahren zum Aufladen eines DC-Zwischenkreises eines Windkraftumrichters
    • EP2871759A1
    • 2015-05-13
    • EP14389502.7
    • 2014-10-15
    • Vestas Wind Systems A/S
    • Yu, WeifuTripathi, AnshumanKandasamy, Ravi
    • H02M1/36F03D7/02H02J3/38H02M5/458
    • F03D9/255F03D7/0224F03D7/026H02J3/36H02J3/386H02M1/36H02M5/4585H02M7/125H02P9/04H02P9/08Y02E10/723Y02E10/763
    • The present invention relates to a method for charging a DC link of a power converter included in a wind turbine generator, the wind turbine generator comprising a generator side converter connected to an electrical generator and a grid side converter connectable, or connected, to an electrical grid through a grid circuit breaker, and a converter controller arranged to control at least the DC link, the DC link having a DC voltage level, the wind turbine generator comprising a wind turbine rotor arranged to rotate the electrical generator, wherein the method comprises rotating the wind turbine rotor whereby the electrical generator generates electrical power, rectifying the electrical power through at least one diode of the generator side converter in order to pre-charge the DC link to a DC voltage level, closing the grid circuit breaker when the DC voltage level is greater than a threshold level. The invention also relates to a wind turbine generator with a converter controller for controlling pre-charging of a DC link.
    • 本发明涉及一种用于对包括在风力涡轮发电机中的功率转换器的直流链路进行充电的方法,所述风力涡轮发电机包括连接到发电机的发电机侧转换器和可连接或连接到电气发电机的电网侧转换器 电网通过电网断路器,以及转换器控制器,其布置成至少控制所述DC链路,所述DC链路具有DC电压电平,所述风力涡轮发电机包括布置成旋转所述发电机的风力涡轮机转子,其中所述方法包括旋转 风力涡轮机转子,由此发电机产生电力,通过发电机侧转换器的至少一个二极管整流电力,以便将DC链路预充电到DC电压电平,当DC电压 级别大于阈值级别。 本发明还涉及具有用于控制DC链路的预充电的转换器控制器的风力涡轮发电机。
    • 8. 发明公开
    • Method and apparatus for dynamic load sharing
    • 用于动态负载分配的方法和设备
    • EP2169821A1
    • 2010-03-31
    • EP08165287.7
    • 2008-09-26
    • Vestas Wind Systems A/S
    • Shu Yu, CaoHelle, LarsTripathi, AnshumanLarsen, Kim B
    • H02P25/22H02P9/10H02P21/00
    • H02P9/02H02P21/00H02P21/0089H02P21/22H02P25/22H02P2101/15
    • A method for providing dynamic load sharing between a first and a second three phase system is disclosed, wherein the first and second three phase system are connected to a first and second three phase interleaved winding in a generator. The method comprises determining a first q-axis control signal for the first three phase system and a second q-axis control signal for the second three phase system based on a torque and/or power demand for the generator, determining a first d-axis control signal for the first three phase system and a second d-axis control signal for the second three phase system based on a coupling effect between the first and second three phase systems, and adjusting the q-axis control signals and d-axis control signals by including at least one feed forward compensation signal, wherein said at least one feed forward compensation signal is based on a coupling effect between the first and second three phase systems.
    • 公开了一种用于提供第一和第二三相系统之间的动态负载分配的方法,其中第一和第二三相系统连接到发电机中的第一和第二三相交错绕组。 该方法包括基于发电机的转矩和/或功率需求确定用于第一三相系统的第一q轴控制信号和用于第二三相系统的第二q轴控制信号,确定第一d轴 基于第一和第二三相系统之间的耦合效应以及调节q轴控制信号和d轴控制信号来控制第一三相系统的控制信号和第二三相系统的第二d轴控制信号 通过包括至少一个前馈补偿信号,其中所述至少一个前馈补偿信号基于第一和第二三相系统之间的耦合效应。