Flexible direct-current converter valve and bridge arm damping module energy taking circuit thereof

The invention relates to a flexible direct-current converter valve and a bridge arm damping module energy taking circuit thereof. The energy taking circuit of the bridge arm damping module comprises at least one high-voltage isolation power source which corresponds to sub modules in arrangement. The input of one high-voltage isolation power source is connected with a direct-current support capacitor of one sub module. The output of each high-voltage isolation power source is in power supply connection with a damping module control loop though a current limiting resistor and a voltage support capacitor. The bridge arm damping module energy taking circuit of the invention is highly reliable and low in cost, and does not affect the power supply sub modules.