摘要
在传统电力电子变流装置中,采用二极管或普通晶闸管相控整流器,将对电网注入大量谐波分量及无功功率,造成电网污染;采用全控型器件的三相PWM整流器,可实现电网侧电流按正弦规律变化,并运行于单位功率因数,降低谐波对电网的污染。文章通过建立三相电压型PWM整流器模型,分析模型工作原理,利用空间矢量调制技术和前馈解耦控制策略,搭建Matlab/Simulink的仿真模型,运行结果表明系统工作正常,达到设计要求。
In power electronic converter device,using the ordinary thyristor phased rectifier,to inject a large number of harmonics and reactive power grid,power grid pollution;With full control of PWM rectifier device,which can realize the grid side current according to the sine law of change,and run in unit power factor,reduce the pollution to the grid.By establishing the model of three-phase voltage source PWM rectifier,this paper analyzes the working principle of feedforward decoupling control strategy,structures,based on Matlab/Simulink simulation model,the running results show that the system works well,to meet the design requirements.
作者
王成
WANG Cheng(School of Electrical Engineering,Xi’an Aeronautical University,Xi’an 710077,China)
出处
《电子设计工程》
2019年第4期140-145,共6页
Electronic Design Engineering
