高频开关电源变换器的数字控制研究  

Research on Digital Control of High Frequency Switching Power Converter

作　　者：李柯 杜凤婷 高航 陈勇红 LI Ke;DU Fengting;GAO Hang;CHEN Yonghong(State Owned Changhong Machinery Factory,Guilin 541002,China)

机构地区：[1]国营长虹机械厂,广西桂林541002

出　　处：《通信电源技术》2024年第7期127-129,共3页Telecom Power Technology

摘　　要：随着电力电子技术的迅速发展和高频开关电源变换器在各类电子设备中应用的日益广泛,数字控制技术因其卓越的性能和高度的灵活性成为研究的热点。通过分析数字脉宽调制(Digital Pulse Width Modulation,DPWM)生成数字占空比信号时产生的问题,引出将模拟控制信号转换成数字占空比信号存在的局限,进而基于Boost变换器提出一种类比例-微分(Proportional-Derivative,PD)的模糊逻辑控制器(Fuzzy Logic Controller,FLC)。该数字控制系统可以直接生成占空比信号而不会导致极限环振荡,并通过实验证明了设计的控制器的有效性。高频开关电源变换器的数字控制研究旨在为电力电子领域提供更加精确、灵活及高效的控制方案,进一步推动高频开关电源变换器技术的发展。With the rapid development of power electronics technology and the increasingly widespread application of high-frequency switching power converters in various electronic devices,digital control technology has become a research hotspot due to its excellent performance and flexibility.Through the analysis of the problems caused by Digital Pulse Width Modulation(DPWM)to generate digital duty cycle signals,the limitations of converting analog control signals into digital duty cycle signals are introduced.Based on the Boost converter,a Fuzzy Logic Controller(FLC)of Proportional-Differential(PD)type is proposed,This digital control system can directly generate duty cycles without causing limit cycle oscillation problems,and the effectiveness of the designed controller has been demonstrated through experiments.The research on digital control of high frequency switching power converter aims to provide more precise,flexible,and efficient control solutions for the field of power electronics,and further promote the development of highfrequency switching power converter technology.

关 键 词：数字控制 数字脉宽调制(DPWM) 高频开关电源变换器 

分 类 号：TN86[电子电信—信息与通信工程] TM63[电气工程—电力系统及自动化]