电气传动2026，Vol.56Issue(1)：12-20,9.DOI:10.19457/j.1001-2095.dqcd26053
新能源场站接口VSC直流电压控制稳定性分析及改进控制策略
DC Voltage Stability Analysis and Improved Control Strategy of New Energy Station Interfaced VSC
赵伟程 1马浩原 1黄津明 2曹鑫 1柯行思1
作者信息
- 1. 国网四川省电力公司营销服务中心,四川 成都 610041
- 2. 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)working as the interface of new energy stations connects to urban main network with long-distance AC line,which results a weak grid connected condition and has a risk of DC voltage instability.To analyze the mechanism of DC voltage instability of weak grid connected VSC,a DC voltage stability analysis model for VSC grid connected systems applicable to various control strategies was established.The impact mechanism of the interaction between weak grid connected VSC operating points and control loops interaction on DC voltage stability was revealed.Then a DC voltage stability improvement control strategy was designed with the characteristic of compensation frequency range flexible and variable.The simulation model in Matlab/Simulink environment verified the correctness of the proposed research content.关键词
弱连接VSC/直流电压稳定性/通用模型/控制环节交互/补偿控制Key words
weak grid connected voltage source converter(VSC)/DC voltage stability/general model/control loops interaction/compensation control分类
信息技术与安全科学引用本文复制引用
赵伟程,马浩原,黄津明,曹鑫,柯行思..新能源场站接口VSC直流电压控制稳定性分析及改进控制策略[J].电气传动,2026,56(1):12-20,9.
