METHOD AND APPARATUS FOR STABILIZING VOLTAGE OF INTERMEDIATE CIRCUT OF FREQUENCY CONVERTER
    1.
    发明申请
    METHOD AND APPARATUS FOR STABILIZING VOLTAGE OF INTERMEDIATE CIRCUT OF FREQUENCY CONVERTER 有权
    用于稳定频率转换器中间电路电压的方法和装置

    公开(公告)号:US20090052217A1

    公开(公告)日:2009-02-26

    申请号:US12193247

    申请日:2008-08-18

    Applicant: Markku TALJA

    Inventor: Markku TALJA

    Abstract: A method and an apparatus for damping voltage oscillation of a voltage intermediate circuit of a frequency converter, the frequency converter comprising a half controlled rectifier bridge coupled to a supply network. The method comprises determining magnitude (Uc) of voltage of the voltage intermediate circuit, determining magnitude (Uin) of rectified voltage of the supply network, forming a derivative of a difference (Uin−Uc) between the rectified voltage of the supply network and the voltage of the voltage intermediate circuit, delaying firing of controllable components of the rectifier bridge on the basis of the formed derivative.

    Abstract translation: 一种用于抑制变频器的电压中间电路的电压振荡的方法和装置,所述变频器包括耦合到供电网络的半控整流桥。 该方法包括确定电压中间电路的电压的大小(Uc),确定供电网络的整流电压的幅度(Uin),形成供电网络的整流电压之间的差值(Uin-Uc) 电压中间电路的电压,基于形成的导数延迟整流桥可控元件的点火。

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