一种HVDC换流阀系统的多层次可靠性评估方法
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摘要
在全面分析晶闸管换流阀拓扑与辅助系统的多层次结构基础上,根据冗余模型及状态空间法等基本的可靠性理论,构建了一种详细的晶闸管换流阀系统多层次可靠性模型与评估方法。基于所建立的可靠性模型,结合实例说明了可靠性分析的详细过程及用具体的指标评估换流阀系统可靠性的方法,并定量分析了不同因素对系统可靠性的影响。该方法解决了特高压直流输电(UHVDC)工程下单独针对晶闸管换流阀系统进行可靠性评估的问题,结果表明了该模型的合理性,可为实际工程的规划和建设提供量化决策依据。
Based on the comprehensive analysis of the multi-level structure of converter valve topology and auxiliary system,a detailed multi-level reliability model and evaluation method of the converter valve system is proposed according to the basic reliability theories including redundancy model and state space method.On the basis of the proposed reliability model, the detailed process of reliability analysis is illustrated with practical example and the method to evaluate reliability using specific indexes is proposed,also the effects of different factors on the system reliability are analyzed quantitatively.The proposed method solves the problem of reliability evaluation of solo thyristor converter valve system for ultra high voltage direct current transmission(UHVDC) system,and the results show the rationality of this model, which could provide quantitative decision-making basis for the planning and construction of actual project.
Based on the comprehensive analysis of the multi-level structure of converter valve topology and auxiliary system,a detailed multi-level reliability model and evaluation method of the converter valve system is proposed according to the basic reliability theories including redundancy model and state space method.On the basis of the proposed reliability model, the detailed process of reliability analysis is illustrated with practical example and the method to evaluate reliability using specific indexes is proposed,also the effects of different factors on the system reliability are analyzed quantitatively.The proposed method solves the problem of reliability evaluation of solo thyristor converter valve system for ultra high voltage direct current transmission(UHVDC) system,and the results show the rationality of this model, which could provide quantitative decision-making basis for the planning and construction of actual project.
引文
[1]彭吕斌,何剑,谢开贵,等.特高压交流和直流输电系统可靠性与经济性比较[J].电网技术,2017,41(4):1098-1105.
[2]郭焕,温家良,汤广福,等.直流输电换流阀主电路的可靠性分析与优化设计[J].中国电机工程学报,2009,29(1):39-43.
[3]李生虎,华玉婷,陈鹏,等.UHVDC系统故障树分析误差及灵敏度分析[J].电网技术,2015,39(5):1233-1239.
[4]曾庆禹.特高压交直流输电系统可靠性分析[J].电网技术,2013,37(10):2681-2688.
[5]姜海波,翟宾,贺新征,等.换流站阀冷却系统可靠性分析与评估[J].东北电力技术,2014,35(3):52-55.
[6]刘杰,汤广福,查鲲鹏,等.特高压直流输电换流阀冲击暂态均压措施研究[J].中国电机工程学报,2016,36(7):1828-1835.
[7]陈鹏,孙宝奎,纪锋.±1100kV特高压直流换流阀饱和电抗器样机的失效模式与加速寿命试验方法[J].高电压技术,2016,42(8):2612-2618.
[2]郭焕,温家良,汤广福,等.直流输电换流阀主电路的可靠性分析与优化设计[J].中国电机工程学报,2009,29(1):39-43.
[3]李生虎,华玉婷,陈鹏,等.UHVDC系统故障树分析误差及灵敏度分析[J].电网技术,2015,39(5):1233-1239.
[4]曾庆禹.特高压交直流输电系统可靠性分析[J].电网技术,2013,37(10):2681-2688.
[5]姜海波,翟宾,贺新征,等.换流站阀冷却系统可靠性分析与评估[J].东北电力技术,2014,35(3):52-55.
[6]刘杰,汤广福,查鲲鹏,等.特高压直流输电换流阀冲击暂态均压措施研究[J].中国电机工程学报,2016,36(7):1828-1835.
[7]陈鹏,孙宝奎,纪锋.±1100kV特高压直流换流阀饱和电抗器样机的失效模式与加速寿命试验方法[J].高电压技术,2016,42(8):2612-2618.