CHEN LEI1, TANG YI1, XIAO LIANG2. Study of ASVG Based on Carrier Phase-shift Control. [J]. Power capacitor & reactive power compensation, 2012, 33(1): 51-56.
CHEN LEI1, TANG YI1, XIAO LIANG2. Study of ASVG Based on Carrier Phase-shift Control. [J]. Power capacitor & reactive power compensation, 2012, 33(1): 51-56. DOI: 10.14044/j.1674-1757.pcrpc.2012.01.004.
基于载波移相控制的ASVG的研究
摘要
无功补偿装置与电网的安全稳定运行关系密切
研究无功补偿问题对电力系统意义重大。文章对ASVG变流器的主回路拓扑结构及其工作原理进行了简要阐述
提出采用多组桥并联结构的载波移相控制方法并搭出十二桥模型
对比了其和传统的变流器结构及其对应的PWM工作方式
用开关模型法计算了直流侧纹波、输出电流纹波的值
最后用MATLAB仿真软件验证之。
Abstract
The var compensation device is closely related to safe and stable operation of power grid
so
the research of var compensation has great significance to power system.In this paper
the topology structure and working principal of main circuit for ASVG inverter are briefly described.The method of carrier phase-shift control with adoption of multi-bridge parallel structure is put forward and a 12-bridges model is made.The comparison with the traditional converter structure and its corresponding PWM working mode have been carried out
and the DC side ripples
output current ripple are calculated by switch model.At last
it is validated by the use of MATLAB simulation software
which reflect the advantage of the new method.
关键词
电力系统静止无功发生器(ASVG)载波移相纹波
Keywords
power systemadvanced static var generator(ASVG)carrier phase-shiftripple