可再生能源2014，Vol.32Issue(6)：754-758,5.
两级式光伏并网逆变器无差拍控制研究
Research on dead-beat control for two-stage PV grid-connected inverter
摘要
Abstract
In view of the characteristics of two levels three-phase photovoltaic (PV) grid-connected inverter,a double-loop control strategy which consists of instantaneous power outer loop and dead-beat control current inner loop is proposed.A discrete mathematical model of three-phase PV inverter is deduced in which omission of current forecast section in traditional dead-beat current control simplifies the inverter control system because of adoption of instantaneous power control for outer loop.Matlab/Simulink software simulation results show that the control strategy can keep the maximum output power of PV grid-connected inverter in which output current can accurately and quickly track grid voltage,and power factor is close to 1 while the PV battery output power is fluctuating caused by light radiation.关键词
并网逆变器/瞬时功率/双环控制/无差拍控制/功率因数Key words
grid-connected inverter/ double-loop control/ instantaneous power/ dead-beat control / power factor分类
信息技术与安全科学引用本文复制引用
谢永流,程志江,李永东,华东,段志尚,赵方华..两级式光伏并网逆变器无差拍控制研究[J].可再生能源,2014,32(6):754-758,5.基金项目
国家自然科学基金项目(61364010) （61364010）
国家科技支疆项目(2013911036). （2013911036）
