摘要
针对开关电源系统稳定性的动态补偿参数调试繁杂的问题,提出了反激式开关电源控制系统小信号模型。该模型采用小信号理论详细地分析了反激式开关电源的电流环和电压环,并推导出系统模型的传递函数,然后借助MATLAB软件仿真,获取补偿网络的参数。仿真和实验结果表明应用模型选取的参数使系统在负载变化和电网波动的情况下仍具有良好的稳定性和动态特性。通过软件更改系统模型设置,可获取不同设计要求下的补偿网络参数,使模型在工程设计上更具有操作性和通用性。
Aiming at the problem of debugging the stability dynamic compensation parameters ofswitch power supply system,a small signal model of flyback switching power supply control system was proposed.This model utilized the small signal theory to analyzes current loop and voltage loop of flyback switching power supply in de-tail,expressed the transfer function of the system,and acquired compensation parameters by using MATLAB software.The simulation and experimental results showed that the parameters selected by the model made the control system of good stability and dynamic characteristics under load changes and power fluctuations.By chan-ging the system model settings through soft-ware,the network compensation parameterscould be obtained to meet different design requirements.
出处
《探测与控制学报》
CSCD
北大核心
2015年第5期89-93,共5页
Journal of Detection & Control
