无交流侧电压传感器的并网逆变器控制技术研究  

Research on control technology of grid connected inverter without AC side voltage sensor

作　　者：魏超群 陈淼[2] 彭新 欧阳晖[2] Wei Chaoqun;Chen Miao;Peng Xin;Ouyang Hui(Chinergy Company,Ltd.,Beijing 100193,China;Wuhan Second Ship Design and Research Institute,Wuhan 430064,China)

机构地区：[1]中核能源科技有限公司,北京100193 [2]武汉第二船舶设计研究所,武汉430064

出　　处：《船电技术》2024年第7期29-31,35,共4页Marine Electric & Electronic Engineering

摘　　要：传统的三相并网逆变器需要安装交流侧电压传感器,增加并网逆变器成本的同时影响了可靠性。本文研究了一种基于二阶广义积分器的电网电压观测器,并结合了基于电容电流反馈有源阻尼的准比例谐振控制算法,实现了并网电流的精准控制。仿真结果证明这种控制方法的有效性。The traditional three-phase grid connected inverter needs to install AC side voltage sensor,which increases the cost of grid connected inverter and affects the reliability at the same time.In this paper,a grid voltage observer based on second-order generalized integrator is studied,and a quasi resonant control algorithm based on active damping of capacitive current feedback is combined to realize accurate control of grid connected current.The simulation results show the effectiveness of this control method.

关 键 词：三相并网逆变器 二阶广义积分器 电压观测器 准比例谐振控制 

分 类 号：TM464[电气工程—电器]