摘要
随着社会的发展,直流电的应用已深入日常生活的方方面面,由此需要设计一款合适的整流器将交流电转化为直流电.现有的整流器有不控整流器、PWM整流器及混合整流器等,不控整流器直流侧需要较大的滤波电容,这对电容的要求比较高,而PWM整流器虽然控制灵活,但是容易产生谐波.现有混合整流器多为并联型结构,控制方式较为复杂.本文对比分析不控整流和PWM整流的优缺点,并在此基础上设计一种串联型混合整流器.仿真结果表明,本设计可以在保持直流侧电压稳定的前提下,大幅降低直流侧滤波电容的容值.
With the development of society,the application of direct current has penetrated into all aspects of people’s daily life,which requires us to design a suitable rectifier.The existing rectifiers include uncontrolled rectifier,PWM rectifier and hybrid rectifier.The DC side of uncontrolled rectifier requires a large filter capacitance.While the PWM rectifier has flexible control,it is easy to generate harmonics.Most of the existing hybrid rectifiers are in parallel,so the control mode is very complex.In this paper,the advantages and disadvantages of uncontrolled rectifier and PWM rectifier are compared and analyzed.A series hybrid rectifier is designed on this basis.The simulation results show that this design can greatly reduce the capacitance of DC side filter capacitor while maintaining the voltage stability on the DC side.
作者
李凯凯
魏立明
LI Kai-kai;WEI Li-ming(School of electrical and computer engineering,Jilin Jianzhu university,Changchun 130118,China)
出处
《吉林建筑大学学报》
CAS
2021年第4期83-88,共6页
Journal of Jilin Jianzhu University
关键词
串联型混合整流器
脉宽调制(PWM)
电容减小
series type hybrid rectifier
pulse width modulation(PWM)
capacitance reduction
