采用复合控制的SPWM逆变电源研究  

Research on SPWM Inverter Adopted Compound Control

作　　者：刘阳 吴伟林 LIU Yang;WU Weilin(Research and Development Center,Hefei Tongzhi Mechanical and Electrical Control Technology Co.,Ltd.,Hefei 230000,Anhui,China;Institute of Automation Science and Engineering,South China University of Technology,Guangzhou 510641,Guangdong,China)

机构地区：[1]合肥同智机电控制技术有限公司研发中心,安徽合肥230000 [2]华南理工大学自动化科学与工程学院,广东广州510641

出　　处：《电气传动》2018年第3期33-40,共8页Electric Drive

基　　金：中国博士后科学基金资助项目(2016M592488);广东省科技计划项目(2017A040405023)

摘　　要：针对低压直流供电逆变电源的特点,在逆变电源的主要控制策略和单极性弱倍频SPWM控制方式基础上,提出了一种用于逆变电源的复合控制方法,介绍了该复合控制方法中电压有效值环控制、DC分量控制、重复控制及电压电流双闭环瞬时值控制等控制环节的设计机理。以DSC MC56F8346为控制核心,设计了一款4 k V·A低压直流供电的逆变电源原理样机,给出了详细的软硬件实现方法,并进行了实验验证,结果表明了采用这种复合控制方法进行SPWM逆变电源设计的可行性。According to the characteristics of the low voltage DC power supply of the inverter,on the basis of the main control strategy for inverter and unipolar&weak frequency multiplication SPWM,a compound control method for the inverter was proposed,the method of the compound control was introduced including voltage RMS loop control,DC component control,repetitive control,voltage and current double close-loop instantaneous value control,etc.With the DSC MC56F8346as the core,a4kV·A inverter prototype using the low voltage DC power supply was designed,the detailed hardware and software implementation method were given,and a experimental verification was done,and the results show the feasibility of SPWM inverter design using this compound control mode.

关 键 词：逆变电源 单极性弱倍频正弦脉宽调制 复合控制 重复控制 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]