摘要
交直流输电系统中直流换流器要消耗大量的无功功率,这使大干扰后交直流系统的暂态电压稳定性面临严峻考验。因此,研究交直流系统的暂态电压稳定性具有重要意义。文中介绍了暂态电压稳定性研究的主要内容,如暂态电压稳定性的影响因素、分析方法、稳定判据等,回顾了近20年来暂态电压稳定性问题所取得的研究成果,提出了交直流系统中预防暂态电压失稳事故的措施,并对多馈入交直流电力系统暂态电压稳定机理、负荷模型等问题进行了探讨。
Converters of AC/DC power transmission systems consume lots of reactive power, which brings about great severe challenges for transient voltage stability of AC/DC power transmission systems. Therefore, the study on transient voltage stability of AC/DC power systems is of great importance. Some main research contents of transient voltage stability are presented, including the factors impacting transient voltage stability, analysis methods and stability criteria; some obtained research results in recent twenty years are reviewed; and finally the measures to prevent transient voltage instability of AC/DC power systems are proposed. Besides, the research contents of key problems of multi-infeed AC/DC power systems, such as mechanism of voltage stability and load model, are presented.
出处
《电网技术》
EI
CSCD
北大核心
2008年第12期30-34,共5页
Power System Technology
基金
国家自然科学基金资助项目(50337010)~~
关键词
交直流电力系统
暂态电压稳定
分析方法
影响因素
稳定判据
预防措施
AC/DC power system
transient voltage stability
analysis methods
influencing factors
stability criteria
precautionary measures
