中文摘要：

随着分布式电源渗透率的不断提升，常规的分布式并网发电控制技术将会使得电网的稳定性问题越发严峻．虚拟同步发电机技术因其能够改善电网稳定性而成为研究的热点。首先介绍了同步发电机频率及电压控制的机理．接着介绍并分析了现有的两大类具有典型性的虚拟同步发电机技术方案及其控制原理，最后对虚拟同步发电机技术的发展方向进行了展望。

英文摘要：

With the increasing of penetration of distributed generation, conventional distributed generation technology would make the stability of power grid become more serious, the virtual synchronous generator technology becomes the hot topic in the research of distributed generation technology for the advantage of improving power grid＇s stability. The mechanisms of frequency and voltage control of synchronous generator were introduced, then the representative scheme of two categories of virtual synchronous generator technology were introduced, the control principles were also been analysied. Finally, the trend of virtual synchronous generator technology were discussed.