分布式静止同步串联补偿器研究与设计

Research and Design of Distributed Static Synchronous Series Compensator

此处阐述了分布式静止同步串联补偿器(DSSC)的拓扑结构、控制原理及方式,探讨了DSSC的容量设计及DSSC等效电抗运行范围,为DSSC的参数设计提供依据。研究DSSC的控制保护策略,提出一种基于注入电压正交分解的直流电压和潮流解耦控制策略,并进行仿真验证,分析DSSC的保护配置原理,设计一种主动过压保护和装置失电自动旁路相结合的后备保护电路。搭建DSSC样机实验系统,并进行基本功能实验。研究结果表明该设计的合理性和正确性,装置启动退出过程平缓,可实现容、感性补偿输出,可实现主动过电压保护和装置失电自动旁路保护,为装置的工程应用奠定基础。

Here summerizes the distributed static synchronous series compensator(DSSC) topology structure and the oprating princple,and the DSSC’s capacity and the effictive reactance operating range are discussed.And provide a basis for DSSC parameter design.Then a direct current voltage and power flow decoupling control strategy based on the orthogonal decomposition of injection voltage of DSSC is proposed and proved by simulation.The protection principle of DSSC is discussed and the active overvoltage protection and automatic bypass protection circuit is designed.Set up the DSSC prototype experimental system and conduct basic functional experiments.The research results show that the ra-tionality and correctness of the design,the device startup and exit process is gentle,can achieve capacitive and inductive compensation output,can achieve active over-voltage protection and device automatic bypass protection.It provides the foundation for the engineering application of the device.