A micro power quality management technology based on Grid-connected inverter
According to power quality problems generated in micro-grid operation,micro-source grid-connected inverter control method based on an advanced f -Q,V-Q droop characteristic control method is put forward in the paper. By voltage frequency and amplitude restoration link,both of external voltage loop and internal current loop adopt feed-forward approximate decoupling control strategy. It not only improves the dynamic response performance of the micro-grid,but also balances system power when micro-grid switched from grid-connected mode to island mode fast and suppresses voltage sag phenomenon generated by power unbalance of micro-grid. At the same time,it avoids impulse current during the switch process,improving the reliability of the micro-grid operation. Simulation results proved the effectiveness of the proposed method.
Micro-grids Inverter Advanced f-Q V-Q drooping control method Power quality compensation
Yu Li Tu ChunMing Rong Fei Peng ShuangJian Luo An
College of Electrical and Information Engineering,Hunan University,Changsha 410082,Hunan Province,China
国际会议
南京
英文
955-962
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）