中国电机工程学报2011，Vol.31Issue(33)：68-74,7.
微网中三相逆变器无互连线并联新型下垂控制策略
A Novel Droop Control of Three-phase Inverters in Wireless Parallel Operation in Microgrid
摘要
Abstract
This paper analyzed the limitation of traditional power theory of parallel operation of inverters based on the voltage of point of common coupling （PCC）. An improved power theory of parallel system was deduced based on output terminal voltage of an inverter from a viewpoint of micro-grid autonomy operation. The ＂quasi power＂ variables were defined by linear combination and quasi active power and quasi reactive power were only related to the phase and amplitude difference respectively. A quasi-power droop control method for parallel connected inverters was proposed based on the improved power theory. The small-signal mathematical model of the parallel system was derived in a novel droop control scheme, which provided a theoretical basis for the parallel system performance analysis and droop coefficient design. The experiments and simulation were studied in the platform formed by two parallel connected three-phase inverters. The experimental results show that the proposed control strategy is feasible and the good sharing current effect is obtained.关键词
下垂控制/三相逆变器/并联/微电网/．Key words
droop control/three-phase inverter/parallel/microgrid分类
信息技术与安全科学引用本文复制引用
阚志忠,张纯江,薛海芬,董杰,邬伟扬..微网中三相逆变器无互连线并联新型下垂控制策略[J].中国电机工程学报,2011,31(33):68-74,7.基金项目
国家自然科学基金项目（50837003,51077113). （）
