高压直流输电系统可靠性分析方法综述  

An overview of reliability analysis methods for an HVDC transmission system

作　　者：李康 黄萌[1,2] 查晓明 陈蓉珺[3] LI Kang;HUANG Meng;ZHA Xiaoming;CHEN Rongjun(Key Laboratory for Integrated Energy Power Equipment and System Safety of Hubei Province,Wuhan 430072,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;DC Technical Center of State Grid Corporation of China,Beijing 100052,China)

机构地区：[1]综合能源电力装备及系统安全湖北省重点实验室,湖北武汉430072 [2]武汉大学电气与自动化学院,湖北武汉430072 [3]国家电网有限公司直流技术中心,北京100052

出　　处：《电力系统保护与控制》2024年第9期174-187,共14页Power System Protection and Control

基　　金：国家自然科学基金项目资助(52222707);国网直流中心科技项目资助(529911230002)。

摘　　要：高压直流输电系统因具有输送容量大、能耗低且能实现电力系统非同步互联等优势而得到广泛应用,其可靠性分析可为系统提供重要的运维及决策依据。因此,围绕现阶段国内外高压直流输电系统可靠性分析方法进行了归纳总结。首先阐述了传统直流输电、柔性直流输电系统的组成差异,并对输电系统常用的可靠性指标作了相应归纳。其次,从统计法、手册法、状态空间法及其他方法等层面出发,分别对高压直流输电系统可靠性建模的基本原理及研究现状进行了分析,对各类方法的优缺点进行了对比,并探讨了柔性直流输电系统在可靠性分析方面存在的新挑战。最后,针对当前研究中存在的不足,对高压直流输电系统可靠性分析方法进行讨论与展望。The high voltage direct current transmission system(HVDC)is widely used because of its advantages of large transmission capacity,low energy consumption,and the ability to achieve asynchronous interconnection of power systems.Reliability analysis can provide an important operational and decision-making basis for the system.Therefore,reliability analysis methods for HVDC at present,at home and abroad,are summarized.First,the differences in the composition of traditional HVDC and voltage source converter-based HVDC(VSC-HVDC)are explained,and the commonly used reliability indicators of HVDC are described.Secondly,starting from the perspectives of statistical,manual,state space and other methods,the basic principles and research status of reliability modeling for HVDC are analyzed.The advantages and disadvantages of various methods are compared,and the new challenges in reliability analysis of VSC-HVDC are discussed.Finally,given the shortcomings in current research,the reliability analysis methods for HVDC are discussed and prospected.

关 键 词：传统直流输电 柔性直流输电 可靠性分析 统计法 手册法 状态空间法 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM732