Xsensus LLP
Power conversion device and power system performing protection control for suppressing received power
A power conversion device which is connected between an electric generation grid and a demand area grid and performs power conversion includes: a power converter which is connected to an electric generation grid and which converts AC power received from the electric generation grid to DC power and transmits the DC power via DC bus; and a control device for controlling the power converter. The control device includes a detection unit for detecting DC current of the DC bus, and a protection control unit for performing protection control for suppressing an amount of power received from the electric generation grid, on the basis of variation in the DC current, thereby continuing operation in the case of disturbance in the demand area grid.
MITSUBISHI ELECTRIC CORPORATION
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Takuya Toshiyuki Osamu Kaho
Kajiyama Fujii Mori Mukunoki