摘要
根据推挽型光伏并网微逆变器的拓扑结构特点提出了一种适合该拓扑的控制策略,详细分析了该控制策略的原理,推导了该控制策略下并网电流与其参考信号之间的约束关系,借助MATLAB仿真软件验证了控制策略的可行性.该控制策略使推挽型光伏并网微逆变器工作于电流源模式下,具有较高的并网电流质量.
By analyzing the topology of the push-pull micro-inverter for grid-connected PV,a new control strategy of the inverter is proposed.The control strategy is then analyzed in detail.The relationship between the grid-connected current and its reference signal are derived simultaneously.Furthermore,a MATLAB-based circuit is built to verify the feasibility of the proposed control strategy.It is shown through simulation results that as the push-pull micro-inverter operates in current source mode,it may have higher quality of the grid-connected current in a great degree.
出处
《昆明理工大学学报（自然科学版）》
CAS
北大核心
2012年第6期85-91,共7页
Journal of Kunming University of Science and Technology(Natural Science)
基金
宁夏自然科学基金项目(NZ12205)
北方民族大学重点专项项目(2012XZK08)
关键词
光伏并网
微逆变器
推挽
控制策略
grid-connected PV
micro-inverter
push-pull
control strategy
