摘要
利用开关函数和傅里叶级数法,结合晶闸管三相全控整流电路原理,推导了理想电网条件和电网电压不平衡条件下整流的交、直流侧谐波表达式和功率因数计算公式,分析比较了不同电网条件对整流的影响。利用Matlab/Simulink进行了整流电路仿真,验证了不同电网条件下整流谐波及功率因数的计算分析的正确性,为整流系统后期滤波以及提高稳定性提供了理论依据与借鉴。
The unbalance of input voltage that leads to additional abnormal harmonic and affects the rectifier power factor may exist in actual power system. According to the theory of three-phase full bridge control rectifier, this article deriveds the expression of abnormal harmonics and power factor using the method of switching function and Fourier series. This article also analyzes the impact of different grid conditions on rectifying. A rectification circuit was simulated using Simulink. It is proved that the study of rectifying harmonic and power factor under different gird conditions is correct. And the conclusions play a very important role in filtering and improving the stability of rectifying device.
出处
《实验技术与管理》
CAS
北大核心
2016年第1期61-66,共6页
Experimental Technology and Management
基金
国家863计划项目课题(2014AA06A603
2009AA09A201)
中国地质大学(北京)地下信息探测技术与仪器教育部重点实验室基本科研业务费课题项目(GDL1304)
国家重大科研装备研制项目"深部资源探测核心装备研发"(ZDYZ2012-1)
中国科学院科研装备研制项目
关键词
三相全控整流器
电压不平衡
非特性谐波
功率因数
SIMULINK
three-phase full bridge control rectifier
unbalance of input voltage
abnormal harmonic
power factor
Simulink
