高电压技术2011，Vol.37Issue(8)：2010-2016,7.
配电网中分布式并网发电装置的复合控制策略
Composite Control Strategy in Distributed Grid-connected Generation Devices of Distribution Network
摘要
Abstract
In allusion to low utilization rate of photovoltaic （PV） power generation equipments at night and the wind power generation equipments in the windless situation in distribution network, as well as the high cost and single function of active power filter （APF）, we proposed a new control strategy in distributed grid-connected generating devices, which could make the distributed power work at the best grid-connected power output circumstances, and realize the compensation of grid harmonic and reactive current in real time. Moreover, we analyzed the control struc- ture in detail, and applied an improved harmonic and reactive current detection and grid connected active instruction current synthesis algorithm as well as a new composite control method. The improved algorithm did not require a three- to two-phase coordinate transformation and its inverse transformation, so it needed little computation and had high detection precision; Hysteresis bandwidth of the adaptive hysteresis controller could be automatically adjusted with other parameters, and the repetitive controller could guarantee the steady state accuracy in periodic load dis- turbances, so that the novel composite control could change its controlling mode thus save equipment investment, and improve power quality and system stability. Matlab simulation results test and verify the correctness and feasi bility of this new control strategy.关键词
分布式并网发电/有源电力滤波器（APF）/协调控制/指令电流/自适应滞环控制/重复控制Key words
distributed grid-connected generation/active power filter （APF）/coordinated control/instruction： cur-rent/adaptive hysteresis control/repetitive control分类
信息技术与安全科学引用本文复制引用
夏向阳,龚芬,周峰..配电网中分布式并网发电装置的复合控制策略[J].高电压技术,2011,37(8):2010-2016,7.基金项目
广东省科技计划重大科技专项（2010A080804023）j湖南省自然科学基金 （）
长沙市科技计划 （）
“可再生能源电力技术”湖南省重点实验室开放基金 （）
电力与交通安全监控及节能教育部工程研究中心基金（2010#0B）. （）
