电测与仪表2024，Vol.61Issue(3)：95-101,7.DOI:10.19753/j.issn1001-1390.2024.03.014
一种SOP端口不平衡时直流侧电压脉动抑制策略
A strategy for suppression of voltage fluctuation on DC side when SOP port is unbalanced
摘要
Abstract
When the voltage of the soft open point(SOP)port is unbalanced,it will cause the voltage fluctuation on DC side,which will greatly affect the stability of the entire system.According to the mathematical model of SOP,the cause of the fluctuation is analyzed,and a DC-side voltage suppression strategy based on second-order sliding mode control is pro-posed in this paper.The precise tracking of reference voltage and current is carried out by introducing a capacitor compen-sator device based on a nonlinear disturbance observer.Considering a variety of port voltage imbalance conditions,an SOP simulation model is built in MATLAB/Simulink.The simulation results show that the proposed method has a significant effect on the suppression of DC-side voltage fluctuations.关键词
柔性多状态开关/端口不平衡/滑模控制/电容器补偿装置Key words
SOP/port imbalance/sliding mode control/capacitor compensation device分类
信息技术与安全科学引用本文复制引用
张国荣,汤彬,沈聪,王泰文,徐晨林,夏子鹏..一种SOP端口不平衡时直流侧电压脉动抑制策略[J].电测与仪表,2024,61(3):95-101,7.基金项目
国家重点研发计划项目(2017YFB0903100) （2017YFB0903100）
国家电网有限公司科技项目(521104170043) （521104170043）
