基于双闭环控制的三相四线制逆变器控制研究  

Research on Three⁃Phase Four Wire Inverter Control Based on Double Closed⁃Loop Control

作　　者：黄守宁[1] 黄光日 HUANG Shouning;HUANG Guangri(School of Electrical Engineering,Guangxi Technological College of Machinery and Electricity,Nanning Guangxi 530007,China;Nanning University,Nanning Guangxi 530200,China)

机构地区：[1]广西机电职业技术学院电气工程学院,广西南宁530007 [2]南宁学院,广西南宁530200

出　　处：《电子器件》2024年第2期410-414,共5页Chinese Journal of Electron Devices

摘　　要：三相四线制逆变器具有更好的不平衡负载驱动能力,被广泛用于不间断电源等领域。对于这种离网模式下的逆变器而言,通常使用电压电流双闭环控制模式对输出进行控制。提出一种无需坐标变换的电压电流双闭环控制,实现输出三相之间完全解耦。由于准比例谐振(Quasi Proportional Resonance,QPR)控制对交流信号的控制效果更好,因此电压外环采用QPR控制,电流内环采用比例控制。实验证明了所提控制方法的有效性。Three⁃phase four⁃wire inverter has better unbalanced load driving ability and is widely used in the field of uninterruptible power supply.For the inverter in this off⁃grid mode,the voltage and current double closed⁃loop control mode is usually used to control the output.A voltage and current double closed⁃loop control without coordinate transformation is proposed to realize the complete decou⁃pling between the output three phases.Since quasi proportional resonance(QPR)control has better control effect on AC signal,QPR control is adopted for the outer voltage loop and proportional control is adopted for the inner current loop.Experiments show the effec⁃tiveness of the control method proposed.

关 键 词：三相四线制逆变器 双闭环控制 准比例谐振控制 比例控制-- 

分 类 号：TM464[电气工程—电器] TM762