摘要
部分电力设备在研发过程中,要求在不同电压等级下进行测试,其中一些电力设备的阻抗呈现非线性,直接接入电网会造成谐波污染,影响电网的电能质量。对此,设计开发了一套适用于非线性负载的试验电源。这一电源由脉宽调制整流器和脉宽调制逆变器组成,属于背靠背电源系统,能够按照指令输出不同电压,带非线性负载正常运行,不影响电网的电能质量。
During the development of some power equipment,it is required to perform tests at different voltage ranges.Due to that the impedance of some of the power equipment is nonlinear,direct access to the grid will cause harmonic pollution and affect the power quality of the power grid.In this regard,a set of experimental power supply suitable for nonlinear load was designed and developed.This power supply consists of a PWM rectifier and a PWM inverter.It belongs to a back-to-back power supply system,and can output different voltages according to instructions and operate normally with a nonlinear load without affecting the power quality of the power grid.
作者
陈国栋
王伟岸
方彬鹏
Chen Guodong;Wang Wei’an;Fang Binpeng
出处
《上海电气技术》
2020年第3期32-36,共5页
Journal of Shanghai Electric Technology
关键词
试验电源
非线性负载
设计
Experimental Power Supply
Nonlinear Load
Design
