Electrical rotating machine control unit and power generation system
    1.
    发明公开
    Electrical rotating machine control unit and power generation system 审中-公开
    Steuereinheit einer elektrisch rotierenden Maschine und Leistungerzeugungsystem

    公开(公告)号:EP1555749A2

    公开(公告)日:2005-07-20

    申请号:EP04019398.9

    申请日:2004-08-16

    申请人: Hitachi, Ltd.

    IPC分类号: H02P9/00 H02P9/42

    摘要: Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter (7) that estimates the slip frequency of the doubly-fed machine from each primary current I 1 and voltage V 1 and secondary current I 2 and voltage V 2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.

    摘要翻译: 由于需要解析器检测非常昂贵的旋转位置,并且双馈机器上的旋转位置信号线的噪声抑制,发电机的成本增加和由于可能的故障导致的可靠性降低是不可避免的。 为了解决这样的问题,本发明的发电系统配备有从每个一次电流I 1和电压V 1以及二次电流I 2和电压I 2估算双馈机的转差频率的励磁机(7) V 2,并以估计的转差频率激发双馈机器的二次。

    Electric power variation compensating device
    3.
    发明公开
    Electric power variation compensating device 审中-公开
    Vorrichtungen zur Kompensation von elektrischen Leistungsschwankungen

    公开(公告)号:EP1022838A2

    公开(公告)日:2000-07-26

    申请号:EP00100008.2

    申请日:2000-01-03

    IPC分类号: H02J3/38

    摘要: A compound system of a wind power generation and an electric power energy storage constituted by a plurality of wind power generators 1a and 1b, and electric power energy storage device 5a and 5b and electric power converters 6a and 6b installed in parallel with the wind power generators is provided with a composite current detecting means 8a for the wind power generators, a voltage detecting means 9a for an electric power system 18, means 8b for detecting a current of which the electric power converters input or output, means 10a for computing output electric powers Pw and Qw of the wind power generators according to the voltage of the electric power system and the detected value of composite current of the wind power generators, means lOb for computing input or output electric powers Pc and Qc of the electric power converters according to the voltage of the electric power system and the detected value of the current of the electric power converters and a control unit lla which generates pulse signals 16a for controlling the electric power converters, wherein the output electric power of the wind power generators and the input or output electric power of the electric power converters are used for electric power feed back in a control system for the electric power converters.

    摘要翻译: 由多个风力发电机1a和1b以及与风力发电机并联安装的电力能量存储装置5a和5b以及电力转换器6a和6b构成的风力发电和电力能量存储的复合系统 设置有用于风力发电机的复合电流检测装置8a,用于电力系统18的电压检测装置9a,用于检测电力转换器输入或输出的电流的装置8b,用于计算输出电力的装置10a 根据电力系统的电压和风力发电机的复合电流的检测值,风力发电机的Pw和Qw,用于计算根据电力转换器的输入或输出电力Pc和Qc的装置10b 电力系统的电压和电力转换器的电流的检测值以及控制单元11a 用于控制电力转换器的脉冲信号16a,其中风力发电机的输出电力和电力转换器的输入或输出电力用于电力转换器的控制系统中的电力回馈。