中文摘要：

作为分布式发电的关键技术,虚拟同步发电机（Virtual Synchronous Generator,VSG）在微电网中的应用得到了广泛关注。介绍了光储柴独立微电网的结构及其组成,分析了柴油发电机组的控制模型。描述了储能用三相电压源型逆变器的拓扑,阐述了VSG的控制原理。结合控制方式,对独立微电网的频率响应特性进行了分析,并给出了相应的仿真结果。

英文摘要：

As the key technology of the distributed generation system,the virtual synchronous generator（VSG）has been widely used in micro-grids.The structure and its composition of the autonomous photovoltaic-battery-diesel MG were introduced.The control model of a diesel generator set（DGS） was comprehensively analyzed.Additionally,the topology of a three-phase voltage source inverter（VSI） as well as the VSG control strategy for the VSI were described.Furthermore,the impact of this control strategy on the frequency responses of the MG was investigated.Finally,the simulation results were given to validate the VSG control strategy.