虚拟同步发电机技术综述

Technical Review of Virtual Synchronous Generator Technology

随着分布式能源和清洁能源的发展研究,电力电子技术逐渐成为电网研究的热点,虚拟同步机技术(VSG)对电网电力电子的低惯量、欠阻尼问题有着极大的改善。本文首先介绍了虚拟同步机技术的基本原理,对基本的控制策略进行比较,然后对虚拟同步机在风电、光伏、柔性直流输电的应用前景进行了详细的总结,最后结合当前电网对分布式电源接入电网的要求,探讨了未来虚拟同步机技术发展的关键技术。

With the development of distributed energy and clean energy,power electronics technology has gradually become the focus of power grid research,and virtual synchronous generator(VSG)has greatly improved the low inertia and underdamage of power grid electronics.This paper first introduces the basic principle of virtual synchronous generator,compare basic control strategies,then summarizes the application prospect of virtual synchronous generator in wind power,photovoltaic,flexible DC transmission in detail,and Finally,combining with the current power grid,the key technologies of the future development of virtual synchronous generator technology are discussed.