Parameters Optimization of Electronic Components in Voltage Sharing Circuit

Voltage sharing circuit of Static Var Compensator (SVC) has played an important role in balancing voltage across thyristors. Transient analysis and experimental verification are presented in this paper to illustrate the charging and discharging process of voltage-sharing capacitor. Furthermore, the effect of capacitance on charge-discharge time and heat consumption of resistance is also revealed. Based on theoretical calculation and experience of engineering application, the parameter selection scheme for components in voltage sharing circuit is put forward to enhance voltage stability.