Grid-connected PV system modeling and control based on the variable step size of MPPT algorithm

摘要：

　　Based on two kinds of maximum power point tracking (MPPT), this paper proposed an improved variable step size incremental conductance algorithm which combined with constant voltage tracking. The operating point of PV array is located near the maximum power point (MPP) rapidly by using the fixed voltage method, and the PV array is controlled to run at the MPP quickly and accurately adopting different disturbance step. Grid-connected inverter adopts the double closed-loop control strategy of based on feed-forward decoupling to realize the decoupling control of active and reactive power. In PSCAD/EMTDC, the model of grid-connected photovoltaic system (GCPS) has been implemented and verified the effectiveness of the improved MPPT algorithm.

关键词： Constant voltage tracking Variable step incremental conductance method Modeling grid-connected photovoltaic system feed-forward decoupling double closed-loop control

作者: Li Cuiping Zhuo Junwu Li Junhui Yao Zhizhong

作者单位: School of Electrical Engineering,Northeast Dianli University,Jilin 132012,Jilin Province,China Jilin Electric Power Co.,Ltd.,Changchun 130021,China

会议类型: 国际会议

会议名称: 2016中国国际供电会议(CICED2016)

会议地点: 西安

会议语种:英文

页码: 1-6

在线出版日期: 2016-09-01（万方平台首次上网日期，不代表论文的发表时间）