DSP应用下串联式中频电源鲁棒性能改进研究  

Research on Robust Performance Improvement of Series Intermediate Frequency Power Supply under DSP Application

作　　者：吴兰[1] 黄庆归 WU Lan;HUANG Qing-gui(College of Electrical Engineering,Henan University of Technology,Zhengzhou Henan 450000,China)

机构地区：[1]河南工业大学电气工程学院,河南郑州450000

出　　处：《计算机仿真》2025年第2期103-106,375,共5页Computer Simulation

摘　　要：当直流母线电压发生扰动或者阻性负载和阻感负载出现突加和突卸时,中频电源易出现不稳定、鲁棒性差等现象,使得输出电压效果不理想。为此,提出数字信号处理技术(Digital Signal Process,DSP)应用下串联式中频电源鲁棒性能改进方法。在明确基于DSP的串联式中频电源主电路拓扑结构,利用混合灵敏度方法建立中频电源控制器,选取合适的加权函数,提高中频电源的跟踪能力,消除其中不确定因素,实现鲁棒性能的提升。实验结果表明,经由所提方法控制后,串联式中频电源的输出电压波形整体较为稳定,没有发生较为突出的波动,整体电源总谐波失真值小,具有优秀的稳定性和鲁棒性。When the DC bus voltage is disturbed or the resistive load and resistance-inductance load suddenly increase or decrease,the medium-frequency power supply is prone to instability and low robustness,resulting in unsatisfactory output voltage,To address this issue,this paper put forward a method for improving the robustness of series medium-frequency power supplies based on digital signal process technology(DSP).After the topology structure of the main circuit in the series medium-frequency power supply based on DSP was clear and definite,the mixed sensitivity method was adopted to design a controller for medium-frequency power.Then,appropriate weighting functions were selected to improve the tracking ability of the power supply and eliminate uncertain factors,thus improving the robustness.Experimental results show that the output voltage waveform is stable without significant fluctuations.Totally,the harmonic distortion is low,so the method has excellent stability and robustness.

关 键 词：串联式中频电源 鲁棒性能改进 混合灵敏度方法 主电路拓扑结构 加权函数 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]