中文摘要：

实际的光伏阵列具有造价高、占地面积大、容量和电压等级限制、自然气候依赖性强等问题,不适于初期的实验室微网研究。设计了三相可并网的光伏模拟发电微源的拓扑结构及控制策略,并在此基础上提出了3种基于MPPT算法的光伏模拟微源实现方法。仿真实验证明基于这3种实现方法的光伏微源并网运行都是可行的,且都能将光伏模拟微源输出的最大功率送入三相电网。总结了3种实现方法的特点,为实际光伏模拟微源设计及在微网中的应用研究奠定基础。

英文摘要：

Because of high cost,large space requirement,capacity and voltage level limit and heavy dependency on weather,the real photovoltaic arrays aren′t usually suitable for earlier microgrid studies in laboratory. Therefore,the topology and control strategies of a photovoltaic simulated microsource are designed,and three MPPT-based implementation methods of the photovoltaic simulated microsource are presented.Simulation tests prove that the grid-connected operation by these methods is feasible,and the maximum power generated by the photovoltaic simulated microsource can be transmitted into the three-phase grid.After comparison and analysis of the three methods,their features are summed up,which are helpful for the design of real photovoltaic simulated microsource and lay the foundation of microgrid studies of lab in future.