基于滞环控制的电力变换器设计  

Design of power converter based on hysteresis control

作　　者：赵影[1] 张敏[1] 吴凤英[1] 

机构地区：[1]天津理工大学天津市复杂系统控制理论及应用重点实验室,天津300191

出　　处：《电力系统保护与控制》2008年第16期66-69,共4页Power System Protection and Control

基　　金：天津市科技发展计划资助项目(023104111)

摘　　要：由于现代电力电子技术的发展,各种非线性器件的广泛应用,使得畸变电流对电网的污染越来越严重。针对电力变换器造成电网谐波污染问题,在理解变换器的电路、控制等基本原理的基础上,根椐电流跟踪控制原理,以高性能的DSP芯片作为电力变换器的控制器,设计了电流滞环控制系统,对变换器输入电流进行了实时的控制并进行了系统仿真和系统测试,实现了系统的高功率因数和输入电流的正弦化。As the development of advanced power electronics,various nonlinearity, components widely used, which makes the current distortion large.To solve the harmonic pollution which is brought by electric power converter, based on the principle of converter circuit, control theory and electric current tracking method, this paper designs this controller with high-performance DSP chip. This controller has current instantaneous hysteresis double closed circuit system to control input current real-time. Simulation test by prototype and its system testing are made. This control system can improve the power factor and input sin current.

关 键 词：畸变电流 电流跟踪控制 高功率因数 变换器 DSP 

分 类 号：TM46[电气工程—电器]