提高PFC变换器动态响应性能的滤波算法  

A Filter Algorithm to Improve the Dynamic Response Performance of PFC Converter

作　　者：于海坤[1] 许建平[1] 张斐[1] 杨平[1] 

机构地区：[1]西南交通大学,四川成都610031

出　　处：《电力电子技术》2010年第8期34-36,共3页Power Electronics

基　　金：国家自然科学基金(50677056)~~

摘　　要：传统单相Boost PFC变换器较低的电压控制环带宽严重影响了其动态响应速度,因此提出了一种提高单相Boost PFC变换器动态响应性能的滤波算法。通过滤除电压控制环输出信号的低频纹波,该滤波算法在保证变换器PFC性能的前提下,具有更大的电压控制环带宽,进而具有更快的动态响应速度。DCM Boost PFC变换器样机的实验结果验证了该算法的有效性。The single-phase boost PFC converter with conventional low-bandwidth voltage loop exhibits poor dynamic response.A filter algorithm is presented to improve the dynamic performance of the this converter.The low-frequency ripple at the output of the voltage controller is filtered out by using the proposed filter algorithm.The converter can achieve a high bandwidth of the voltage control loop while maintaining a high power factor,thus resulting in fast response.The algorithm is verified by experimental results from a DCM Boost PFC converter.

关 键 词：变换器 功率因数校正 动态响应性能 

分 类 号：TM46[电气工程—电器]