微电网控制策略研究

微电网可提高供电可靠性,改善电能质量,与大电网并列运行还可实现消峰填谷,提高负荷效率,实现经济运行。给出了微电网的定义及其结构示意图,探讨了微电网系统中不同逆变型分布式电源采用的恒功率控制、恒压恒频控制、下垂控制等控制方法,及主从控制、对等控制、分层控制等微电网的整体控制策略,并对微电网控制系统的未来发展趋势进行了展望。

A Survey of Research on Control Strategy of Microgrid

Microgrid could improve power distribution reliability and quality of electric energy, realizing eliminating peak and iflling val-ley, raising load efifciency and realizing economic operation. This paper gave the deifnition and structure diagram of microgrid, discussed the constant power control, constant voltage and frequency control and droop control adopted by different inverse type of distributed generation in microgrid system, and master-slave control, peer-to-peer control and hierarchical control etc integral control of microgrid. This paper ex-pects the future control system development direction of microgrid.