Overview of STATCOM technologies

Abstract: /spl plusmn/20Mvar STATCOM indicates that China is the 4/sup th/ country to develop STATCOM in the world. This paper introduces the development of STATCOM particularly in China. Topologies of STATCOM are discussed, and the cascade multilevel configuration is given in details. Power valves such as GTO, IGBT, IGCT, IEGT used in STATCOM are also mentioned for competence. Shanghai /spl plusmn/50 Mvar STATCOM is introduced to illustrate the state-of-art of STATCOM in China.