摘要
永富直流是国内首个省内直流输电项目,其受端富宁换流站接入的交流系统较弱,换流站内装设有固定串补和STATCOM,对系统安全稳定分析带来了挑战。基于静态稳定和时域仿真分析方法,分析了富宁换流站所在地区电网在N-1和严重故障下的静态电压稳定和暂态稳定,研究了富宁换流站STATCOM接入后对系统电压稳定性的影响,为大容量直流接入弱交流系统的稳定分析提供了新思路。
Yongfu HVDC（YFDC） project is the first provincial HVDC project in China.As the receiving end of Yongfu HVDC,Funing inverter station is connected to weak AC system,and installed with fixed serial capacity（FSC） and STATCOM,which has brought challenge to the security analysis of power grid.Firstly continuation power flow method is used to analyze the voltage stability of the AC/DC power transmission system around YFDC.Then,time-domian simulation analysis is carried out to study the transient stability under N-1/N-2 contingencies.Finaly,the effects of STATCOM on the voltage stability of the AC/DC hybrid system is analyzed,which provides a new idea for the security analysis of the large-capacity HVDC connected to the weak AC system.
出处
《四川电力技术》
2017年第5期10-14,共5页
Sichuan Electric Power Technology
