单相馈能式电子负载电路原理分析  

Principle Analysis for Single-phase Energy Feedback Electronic Load

作　　者：孙青秀 Sun Qingxiu(Shaanxi Railway Institute,ShanxiWeinan,714000)

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000

出　　处：《科技风》2020年第22期79-79,82,共2页

摘　　要：馈能式电子负载主要通过电力电子器件来控制电压或电流的,从而得到了对任意负载的模拟。待测试验电源在电源测试过程中释放的电能,最终以单位功率因数返回于电网中,从而实现能源的再生利用。本文介绍了单相馈能式电子负载的电路结构,并对其两级PWM整流器的运行原理进行了重点分析。The energy feedback electronic load can be controlled by the voltage or current through power electronic device,so that the simulation of any load is obtained.The electrical energy of the measured power supply is finally fed back to the power grid with a unit power factor,thereby realizing energy regeneration.This paper introduces the structure of a single-phase energy feedback electronic load,and analyzes the operating principle of its two-stage PWM rectifier.

关 键 词：馈能式电子负载 功率因数 PWM整流器 

分 类 号：TM714[电气工程—电力系统及自动化]