电气传动2025，Vol.55Issue(6)：56-63,8.DOI:10.19457/j.1001-2095.dqcd25597
交错反激式CCM逆变器并网控制策略研究
Research on Grid-connected Control Strategy of Interleaved Flyback CCM Inverter
摘要
Abstract
In recent years,the use of microinverters has received a lot of attention as one of the viable methods for residential and commercial PV power conversion systems.Flyback inverters operating in current continuous conduction mode(CCM)have been widely studied for their low output ripple current,high efficiency,and low cost.However,its control duty cycle to output current transfer function has right-half-plane(RHP)zeros,which may cause system instability when the inverter is combined with a high-gain feedback controller.In addition,flyback CCM inverters are subject to grid time-varying voltage disturbances.As a result,the conventional control scheme leads to inaccurate output tracking.An interleaved flyback CCM microinverter iterative learning control(ILC)method was proposed to help the system output converge to the reference trajectory by utilizing the prediction term and the current learning term.Compared with the traditional PI control scheme,the system output globally converges to the reference trajectory without state disturbance,output noise and initial state error.关键词
微型逆变器/电流连续导通模式/右半平面(RHP)零/迭代学习控制Key words
microinverter/current continuous conduction mode(CCM)/right-half-plane(RHP)zero/iterative learning control(ILC)分类
动力与电气工程引用本文复制引用
侯永全,马立方,梅霜,吴波,王坦,陆韬..交错反激式CCM逆变器并网控制策略研究[J].电气传动,2025,55(6):56-63,8.基金项目
中国博士后科学基金(2023M732412) （2023M732412）
