电气传动2025，Vol.55Issue(5)：61-70,10.DOI:10.19457/j.1001-2095.dqcd25589
新能源场站参与低频振荡抑制的"电压-功率"阻尼控制策略
"Voltage-Power"Damping Control Strategy for Low-frequency Oscillation Suppression by New Energy Stations
樊沛林 1胡鹏涛 1薛建立 1刘政 2黄津明3
作者信息
- 1. 国网山西省电力有限公司山西营销服务中心,山西 太原 030000
- 2. 国网电力科学研究院武汉能效测评有限公司,湖北 武汉 430200
- 3. 湖北瑞华科技工程管理有限公司,湖北 武汉 430070
- 折叠
摘要
Abstract
Voltage source converter(VSC)is prone to low-frequency oscillations of 100～101 Hz when connected to weak AC power grids.The mechanism of improving the control strategy of VSC on the traditional inverter side to suppress low-frequency oscillations(LFO)in the AC power grid is to transfer the oscillations from the AC side to the DC side,which poses a risk of inducing instability in the DC system.An adaptive voltage power damping control strategy was designed that can suppress low-frequency oscillations in AC systems based on the adjustable output power of the interface converter of energy storage devices containing new energy storage stations.This strategy was based on a damping control loop embedded in the rectifier side VSC control system,which suppresses DC voltage oscillation by controlling the output power of the rectifier energy storage system,effectively solving the shortcomings of traditional inverter side VSC control strategies in transferring oscillations.Based on the analysis of small signal stability,the parameter design process of the virtual damping control link was provided.The simulation results in Matlab/Simulink environment verified the effectiveness of the proposed control strategy and the correctness of the parameter design process.关键词
电压源换流器/低频振荡/阻尼控制/参数设计Key words
voltagesourceconverter(VSC)/low-frequency oscillation(LFO)/damping control/parameterdesign分类
信息技术与安全科学引用本文复制引用
樊沛林,胡鹏涛,薛建立,刘政,黄津明..新能源场站参与低频振荡抑制的"电压-功率"阻尼控制策略[J].电气传动,2025,55(5):61-70,10.
