PWM调制脉冲序列控制Boost变换器  

PWM Modulated Pulse Train Control for Boost Converter

作　　者：高玉[1] 许建平[1] 秦明[1] 兰燕妮[1] 

机构地区：[1]西南交通大学,电气工程学院,四川成都610031

出　　处：《电力电子技术》2011年第1期59-61,共3页Power Electronics

基　　金：国家自然科学基金资助项目(50677056);中央高校基本科研业务费专项资金资助(SWJTU09ZT13,SWJTU2010XS12)~~

摘　　要：提出了开关变换器的PWM调制脉冲序列(Pulse Width Modulated Pulse Train,简称PWM-PT)控制方法。PWM-PT控制通过将开关变换器输出电压与参考电压进行比较,产生PWM调制信号,并根据调制信号的电平相应地选择高功率控制脉冲或低功率控制脉冲实现变换器的控制。以电感电流断续工作模式Boost变换器为例,分析了PWM-PT控制技术的工作原理。分析和实验结果验证了PWM-PT控制的可行性和PWM-PT控制开关变换器优越的瞬态特性。Pulse width modulated-pulse train（PWM-PT） control method applied to the control of switching mode con-verter is presented.The error between output voltage and reference voltage of the converter is used to generate the low frequency modulation signal,from which the high or low power control pulse is chosen by PWM-PT controller to achieve the control of the converter.Boost converter in DCM is used as an example to illustrate the operation princi-ple of PWM-PT control technique.The analysis and experimental results verify the feasibility and advantage of PWM-PT control technique with better transient response characteristics.

关 键 词：升压变换器 脉宽调制 脉冲序列控制 

分 类 号：TM46[电气工程—电器]