可逆变流器正弦滞环宽度控制方法  

Reversible converter sinusoidal band hysteresis current control method

作　　者：魏克新[1] 张书军[1] 岳有军[1] 

机构地区：[1]天津理工大学自动化与能源工程学院,天津300191

出　　处：《电力自动化设备》2005年第9期36-38,共3页Electric Power Automation Equipment

基　　金：天津市教委基金资助项目(20030523)~~

摘　　要：滞环控制方法具有动态响应速度快和电路结构简单的优点,该方法获得了广泛的应用和发展。从改善系统的输入电流谐波总畸变率THD(Total Harmonic Distortion)角度,提出一种改进的正弦滞环宽度控制方法,可有效减小脉宽调制(PWM)可逆变流器系统的THD。在PWM可逆变流器系统状态空间模型的基础上利用Psim仿真软件进行分析。和固定滞环宽度控制方法相比,应用改进的正弦滞环宽度控制方法,系统具有更小的THD。快速傅里叶变换结果表明,应用改进的正弦滞环宽度控制方法,系统具有更小的谐波含量。Hysteresis current control method is widely used for its fast dynamic response and simple circuit configuration. An improved sinusoidal band hysteresis current control method is presented to reduce the input current THD（Total Harmonic Distortion）. Based on the state space model of PWM reversible converter,simulation analysis is performed with Psim software. Compared with the fixed band hysteresis current control method,smaller THD is achieved in the system with sinusoidal band hysteresis current control. The result of fast Fourier transform indicates that the harmonic content of the improved method is also smaller than that of fixed band hysteresis current control. This project is supported by Fund of Education Office of Tianjin（20030523）.

关 键 词：可逆变流器 滞环电流控制 仿真 谐波总畸变率 

分 类 号：TM461[电气工程—电器]