光伏并网逆变器的虚拟同步发电机控制策略  

Virtual Synchronous Generator Control Strategy for Grid-connected Inverters

作　　者：胡平 任俊道 HU Ping;REN Jun-dao(School of Electrical Engineering,Shaanxi Polytechnic Institute,Xianyang 712000,China;School of Electronics and Control Engineering,Chang’an University,Xi’an 710061,China)

机构地区：[1]陕西工业职业技术学院电气工程学院,咸阳712000 [2]长安大学电子与控制工程学院,西安710061

出　　处：《自动化与仪表》2019年第7期22-25,共4页Automation & Instrumentation

基　　金：咸阳市工业攻关课题项目(2018k02-10)

摘　　要：随着分布式电源的不断发展,其在大电网中渗入也越来越严重,给电网带来了严重的挑战和威胁。该文主要介绍采用虚拟同步发电机控制算法,将定子方程以及转子机械方程引入到光伏逆变器的控制算法中,使得逆变器的输出具有同步发电机所具有的特性,与传统的下垂控制相比,其给系统提供了一定的惯性和阻尼,使得逆变器的输出具有传统发电机所具有的外特性,且使得新能源并网具有传统电源所具有的电网调节作用。With the continuous development of distributed power sources,its penetration into the large power grid is becoming more and more serious,which brings serious challenges and threats to the power grid. This paper mainly introduces the virtual synchronous generator control algorithm,and introduces the stator equation and the rotor mechanical equation into the control algorithm of the photovoltaic inverter,so that the output of the inverter has the characteristics of the synchronous generator,and the traditional droop control In comparison,it provides a certain inertia and damping to the system,so that the output of the inverter has the external characteristics of the conventional generator,and the new energy grid-connected has the power grid regulation function of the conventional power source.

关 键 词：虚拟同步发电机 分布式电源 调频调压 闭环控制 

分 类 号：TM615[电气工程—电力系统及自动化]