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    • 10. 发明公开
    • Control system for doubly-fed induction machine
    • Steuerungssystemfürdoppelt gespeiste Induktionsmaschine
    • EP2544358A1
    • 2013-01-09
    • EP11173259.0
    • 2011-07-08
    • ABB Oy
    • Niiranen, JoukoSeman, SlavomirVirtanen, Reijo
    • H02P9/00H02P23/04
    • B26D7/015B26F1/14B26F1/22B26F1/36B31D1/0043H02P9/007H02P23/04
    • A method and arrangement for controlling a doubly-fed induction machine by a frequency converter comprising a rotor side converter (INU) connected to a rotor circuit of a doubly-fed induction machine (DFIG) and having a control system with rotor flux as a feedback variable, a grid side converter (ISU) connected to an AC power network, and a direct voltage intermediate circuit (DC) connected between the rotor side converter (INU) and the grid side converter (ISU). The method comprises forming a rotor flux reference (ψ r,reƒ ), forming a damping signal ( ψ reƒ,D ), summing the damping signal and the rotor flux reference for obtaining a modified rotor flux reference (ψ reƒ ), and feeding the modified rotor flux reference to a controller of the rotor side converter (INU) for damping sub-synchronous resonances.
    • 一种用于通过变频器控制双馈感应电机的方法和装置,包括连接到双馈感应电机(DFIG)的转子电路并具有转子磁通的控制系统作为反馈的转子侧转换器(INU) 连接到交流电网的电网侧转换器(ISU)和连接在转子侧转换器(INU)和电网侧转换器(ISU)之间的直流电压中间电路(DC)。 该方法包括形成转子磁通量参考(Èr,re'),形成阻尼信号(Ère',D),将阻尼信号和转子磁通量参考相加,以获得修正的转子磁通量参考(Ère'), 并将修正的转子磁通量基准馈送到转子侧转换器(INU)的控制器,用于阻尼子同步共振。