Firstly, overvoltage protection problems of FSC(Fixed Series Capacitor) and TCSC are introduced.The main contenst of a study on overvoltage and overvoltage protection of the device are concluded.

• 首先介绍了固定串联补偿和可控串补(TCSC)的过压保护问题：提出了变耦电抗式可控串补装置过电压及过压保护研究的主要内容；