一种改进型脉宽调制式电子开关模型  

A Modified PWM Electronic Switch Model

作　　者：周令琛[1] 

机构地区：[1]上海第二工业大学电子电气工程学院,上海201209

出　　处：《贵州工业大学学报（自然科学版）》2007年第3期34-37,共4页Journal of Guizhou University of Technology(Natural Science Edition)

摘　　要：提出一种与传统理想平均模型不同的改进型电子开关平均模型。此非理想脉宽调制式(PWM)开关模型适用于连续导通工作方式下的脉宽调制式变频器的建模,其主要特点是考虑了电子器件的非线性效应,并能估算出不同电路器件中的功耗。这种模型可应用于双向变流器以及电力电子系统的仿真。This paper presented a modified electronic switch averaged model which is different from conditional ideal averaged models. The nonideal PWM switch model is applied to modeling PWM converters operating in the continuous conduction mode. The primary characteristics of the averaged model are that it paid attention to the nonlinear effects of electronic devices and it can estimate the dissipated power in the different circuit devices. The model is suited for double directional converters and＇ performs the simulations of the power electronic system easily.

关 键 词：电子开关 脉宽调制式 非线性 

分 类 号：TM46[电气工程—电器]