摘要
低压供电系统中,线路阻抗较大,其对系统的影响也较大,不能忽略。本文考虑网侧线路阻抗的影响,对电容滤波的三相不可控整流电路进行拓扑结构等效分析,用matlab仿真分别分析了线路电阻、电感、滤波电容、负载大小对整流器输出电压及网侧线电压畸变率的影响。
In low-voltage power systems, the line-impedance, which can not be simply ignored for its large effect on the system, does have a great impact on the system. In this paper, by modeling the equivalent circuit for the topology of three-phase uncontrolled rectifier with capacitance filter, we synthetically consider the impact of all the possible factors. Moreover, by using the soft of matlab, we analyzes the influence of giving different value of the line＇s resistance and inductance, the size of filter capacitance, and the load power on the output voltage as well as the line-voltage＇s distortion rate.
出处
《船电技术》
2015年第1期69-72,共4页
Marine Electric & Electronic Engineering
关键词
低压系统
电容滤波
整流电路
电压分析
low-voltage system
capacitor-filtered rectifier
voltage analysis
