中文说明：50kW，380V，50HZ的负荷通过AC-DC-AC变换器连接到25kV，60Hz电网上。该电源由两个电压源型变换器和一个直流电容构成。
English Description：
The load of 50 kW, 380 V, 50 Hz is connected to 25 kV, 60 Hz power grid through AC-DC-AC converter. The power supply consists of two voltage source converters and a DC capacitor.