基于改进PI-重复控制的数字逆变系统  

Research on The Digital Inverter System Based on Improved PI-Repeated Control

作　　者：贾日晶 单鸿涛[1] 蒋宇 王士璋 JIA Rijing;SHAN Hongtao;JIANG Yu;WANG Shizhang(School of Electric and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学电子电气工程学院,上海201620

出　　处：《电子科技》2018年第12期5-8,13,共5页Electronic Science and Technology

基　　金：国家自然科学基金(61673257);上海工程技术大学实践教学建设项目(P201702001)

摘　　要：将逆变系统作为研究对象,针对传统数字控制逆变系统输出电压谐波率大、动态响应慢等问题,文中提出改进的双环PIR控制与重复控制相结合的复合控制算法。双环PIR控制具有动态响应快、滤除指定次谐波的特点,重复控制可以克服死区、消除由于接入非线性负载而引起的输出波形周期性畸变。将逆变系统模型与控制算法相结合,分析得到控制参数。对逆变系统进行仿真与实验,结果表明该复合控制算法有效提升了数字逆变系统的性能。In this paper, the inverter system was taken as the research object. In view of the large output voltage harmonics and slowed dynamic response of the traditional digital control inverter system, an improved composite control algorithm based on double loop Pill control and repetitive control was proposed. Double loop Pill control had the char- acteristics of fast dynamic response and fihering out specified sub - harmonics, llepetitive control could overcome dead zone and eliminate periodic distortion of output wavefoim caused by the non - lineal load. The inverter system model and control algorithm were combined to analyze the control parameters. The simulation and experiment of the inverter system showed that the compound control algorithm effectively improved the performance of the digital inverter system.

关 键 词：数字控制 逆变系统 双环PIR控制 重复控制 复合控制算法 仿真与实验 

分 类 号：TN86[电子电信—信息与通信工程]