摘要
为探索特高压直流输电可靠性评估的新方法,首次将GO法引入到特高压直流输电的可靠性建模当中。结合特高压直流输电系统的实际工况,探讨了串联结构存在相关性时的等效模型算法,基于该算法开发了相应的GO程序,通过计算得到考虑元件相关性的情况下,系统中所有信号流的精确的可靠性参数。计算分析过程说明,可修复系统稳态可靠性的定量计算要比不可修复系统复杂得多。通过与不考虑元件相关性的情况下所得结果之间的对比,说明了发展可修复系统中GO法理论与算法的必要性与先进性。
In order to develop new methods for reliability analysis of ultra high voltage direct current （UHVDC） system, a new goal oriented reliability assessment method, called the GO methodology, was introduced. Considering the actual operating mode of UHVDC, the equivalent model and algorithm of serial structures with correlations were discussed. With the equivalent algorithm, the reliability parameters of the structure with correlations were calculated first. Then a direct calculation with the GO methodology was taken after the structure was replaced with an equivalent element. When dealing with the operational characters during the calculation, the shared signal should be separated from the input signal first, and then merged in the result after the common logic calculation. Accordingly, the GO program was developed. With the developed program, the used factors of the UHVDC system were calculated considering component correlation. The necessity and advantage of the improved GO methodology in repairable system were proved by comparison between results with and without consideration of components＇ correlation. It is verified that the reliability assessment method based on GO methodology is more efficient than the traditional method.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2009年第2期236-241,共6页
High Voltage Engineering
