The discussion on static synchronous compensator technology

摘要

Reactive power balance plays an essential role in improving economic efficiency and grid power quality. With the rapid development of power industry, high pressure and high voltage power grid have been put into operation, quality and reliability of the electric power have become increasingly demanding, as well as the reactive power compensation equipment. STAT COM device is currently the optimal performance of the reactive power compensation devices. Static synchronous compensators (STATCOMs) are part of FACTS device lineage. Their primary aim is to provide a fast acting, precise, and adjustable quantity of reactive power to an AC power system network to which they are linked. This article will focuse on the background, significance, research status, several key technologies and development issues. STATCOM mainly involves several key technologies: inverter power electronic devices; topology structure of the main circuit.; pulse width modulation.; control strategy; reactive current detection. With the economic development, the traditional large capacity STATCOM application occasions gradually restricted and therefore, in the future development of key technologies STATCOM must constantly improve to meet current requirements. In response to these key technical problems and make recommendations to improve these problems.