电气传动2017，Vol.47Issue(12)：65-69,5.DOI:10.19457/j.1001-2095.20171212
弱电网下逆变器并联台数对系统稳定域的影响
Effects of the Number of the Paralleled Inverter in the Weak Grid on the System′s Stability Region
摘要
Abstract
In the weak grid,the grid impedance will seriously affect the stable operation of the grid-connected inverter,and this problem will be aggravated in the multi-paralleled inverter system. In order to reveal the effect law of the number of the paralleled inverter on the system′s stability region,the Norton equivalent circuit of the inverter was obtained according to the mathematical model of the single grid-connected inverter. And then,the effect law of the number of the paralleled inverter on the system′s stability region was studied based on the impedance ratio criterion. The results show that,in the weak grid,the multi-paralleled inverter system′s stability region is inversely proportional to the number of the paralleled inverter. Finally ,the theoretical analyses are verified by the experimental results.关键词
弱电网/电网阻抗/多逆变器并联/并联台数/稳定域Key words
weak grid/grid impedance/multi-paralleled inverter/number of the paralleled inverter/stability region分类
信息技术与安全科学引用本文复制引用
黄现莲,冯向东..弱电网下逆变器并联台数对系统稳定域的影响[J].电气传动,2017,47(12):65-69,5.基金项目
北方民族大学校级科研一般项目(2017DX010) （2017DX010）
