电网技术2012，Vol.36Issue(10)：17-22,6.
分布式能源微网电压质量的控制策略研究
Control Strategy of Voltage Quality in Distributed Energy Microgrids
摘要
Abstract
To stabilize the voltage of distributed energy microgrid, the topological structure of distributed energy microgrid was improved, and then three-phase independently controllable bidirectional converter was designed to make it becoming the only major factor affecting voltage stability of microgrid. According to the relation between voltage and power of distributed energy microgrid and utilizing the inverse droop control characteristic in low voltage transmission line, a multiple feedback controller based on voltage loop, current loop and power loop was proposed, meanwhile the setting of controller's parameters was researched. Results of comparing with traditional control methods and the results of experiments under various operating conditions showed that the proposed bidirectional converter possessed good steady state and dynamic performances and by which the voltage of microgrid could be steadily controlled. It was proved by theoretical analysis and experiments that the proposed multiple feedback control strategy was effective and feasible.关键词
分布式能源/微网/下垂特性/多反馈控制Key words
distributed energy/ microgrid/ droop control characteristic/ multiple feedback control分类
信息技术与安全科学引用本文复制引用
周龙华,舒杰,张先勇,廖志帆..分布式能源微网电压质量的控制策略研究[J].电网技术,2012,36(10):17-22,6.基金项目
广州市重大科技专项(2010U1-D00231). （2010U1-D00231）
