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    • 4. 发明申请
    • METHOD FOR CONNECTING SUBSYSTEMS OF AN ELECTRICAL POWER SYSTEM AND AN INTELLIGENT ELECTRONIC DEVICE THEREFOR
    • 用于连接电力系统的子系统和其智能电子设备的方法
    • WO2015044803A1
    • 2015-04-02
    • PCT/IB2014/063966
    • 2014-08-19
    • ABB TECHNOLOGY
    • GANESAN, SethuramanGUPTA, ArinjaiKUMAR, Amit
    • H02J3/42H02J3/08
    • H02J3/42H02J3/08H02J3/40
    • In aspects, the invention provides a method for connecting a first subsystem of a multi-phase electrical power system with a second subsystem of the multi-phase electrical power system. The second subsystem includes a voltage of time-varying frequency. The method includes calculating, by an Intelligent Electronic Device, an instantaneous angle of separation between a voltage of the first subsystem and the voltage of the second subsystem, determining, by the Intelligent Electronic Device, a synchronization time, and operating, by the Intelligent Electronic Device, at least one switching device for connecting the first subsystem with the second subsystem based on the synchronization time. Determining the synchronization time includes compensating for time-varying frequency of the voltage of the second subsystem.
    • 在一些方面,本发明提供了一种用于将多相电力系统的第一子系统与多相电力系统的第二子系统连接的方法。 第二子系统包括时变频率的电压。 该方法包括通过智能电子设备计算第一子系统的电压与第二子系统的电压之间的瞬时分离距离,由智能电子设备确定同步时间,并由智能电子 设备,至少一个用于基于所述同步时间连接所述第一子系统与所述第二子系统的交换设备。 确定同步时间包括补偿第二子系统的电压的时变频率。