DC/DC变换器的预测函数控制  

Predictive Functional Control of DC/DC Converter

作　　者：吴津庆 葛芦生 陈宗祥 丁烨 WU Jinqing;GE Lusheng;CHEN Zongxiang;DING Ye(School of Electrical and information Engineering,Anhui University of Technology,Maanshan 24303)

机构地区：[1]安徽工业大学电气与信息工程学院,安徽马鞍山243032

出　　处：《常州工学院学报》2018年第4期31-34,共4页Journal of Changzhou Institute of Technology

基　　金：国家自然科学基金项目(51277003)

摘　　要：利用状态空间平均法对DC/DC变换器进行建模,将此模型作为预测函数控制算法的预测模型。用模型的预测值与实际值作差,来反馈校正预测值,然后对校正后的预测值与参考值做二次型性能指标优化,推导出占空比的控制表达式。仿真结果表明,预测函数控制的DC/DC变换器具有良好的稳态精度和较快的动态响应。In this paper, DC/DC converter is modeled with the state-space averaging method and used as the predictive model of the predictive functional control algorithm. The predicted value of the model is fed back to correct the predicted value based on the difference between the predicted value and the actual value. Finally, by optimizing the quadratic performance index of the corrected predicted value and reference value, the control expression for duty cycle is deduced. Simulation results show that the predictive functional control algorithm can bring about consistant high precision and fast dynamic response of DC/DC converter.

关 键 词：DC/DC变换器 预测函数控制 状态空间平均法 

分 类 号：TM46[电气工程—电器]