马玉娟,杨国华,周 鑫,丁晓花,卫宁波,朱向芬.基于改进下垂法的微网并网控制策略研究[J].电测与仪表,2015,52(16):. mayujuan,yangguohua,zhouxin,dingxiaohua,weiningbo,zhuxiangfen.Research on Control Strategy of PV micro-grid-Connected Based on the Improvement of Droop Method[J].Electrical Measurement & Instrumentation,2015,52(16):.
基于改进下垂法的微网并网控制策略研究
Research on Control Strategy of PV micro-grid-Connected Based on the Improvement of Droop Method
Study on distributed micro-grid-connecting control strategy has important implications for increasing the reliability of micro-grid-running. In terms of loop current that existed in distributed generation when micro-grid system is under island model, restrain link of reactive loop current is designed for improving droop control, constant power output that distributed generation is under grid-connecting model is realized through translating droop control curve, and on this basis, grid-connected presynchronization controller is designed for insuring there won’t be great shock current when grid is connected. At last, for restrain of constant loop current that micro-grid is under island model running, control of switching under micro-grid running model and constant power control after micro-grid is connected, this thesis carried out modeling and simulation on Matlab/Simulink platform, the results showed validity and availability of improved droop control method.
