CAJ | 학술논문

提出一种配电网可靠性评估算法以解决故障模式影响分析法等在系统急剧增大时所具有的计算冗余问题。可靠性指标逆流传递过程考虑了下游故障对上游负荷的停电影响，而顺流传递过程考虑了上游故障对下游负荷的停电影响。在逆流传递过程中，先将支线的可靠性指标传递到馈线上，再从馈线末端开始传递至上一级馈线中。在顺流传递中，通过保护元件的逐级传递，将不同保护元件的操作时间计入可靠性指标当中。结合此2种等值过程得到系统中每一点的可靠性指标。该算法考虑保护元件的不可靠动作率，实现了可靠性指标的全网络传递。并利用区域等值技术和最小路方法以简化传递路径和有效减少计算量。所提出方法在IEEE标准可靠性测试模型RT BS上完成测试。结果表明，提出方法的可靠性计算结果与故障模式影响分析法完全相同，并能最大化地提高计算效率。
제출일충배전망가고성평고산법이해결고장모식영향분석법등재계통급극증대시소구유적계산용여문제。가고성지표역류전체과정고필료하유고장대상유부하적정전영향，이순류전체과정고필료상유고장대하유부하적정전영향。재역류전체과정중，선장지선적가고성지표전체도궤선상，재종궤선말단개시전체지상일급궤선중。재순류전체중，통과보호원건적축급전체，장불동보호원건적조작시간계입가고성지표당중。결합차2충등치과정득도계통중매일점적가고성지표。해산법고필보호원건적불가고동작솔，실현료가고성지표적전망락전체。병이용구역등치기술화최소로방법이간화전체로경화유효감소계산량。소제출방법재IEEE표준가고성측시모형RT BS상완성측시。결과표명，제출방법적가고성계산결과여고장모식영향분석법완전상동，병능최대화지제고계산효솔。
This paper proposed a brand new reliability evaluation approach for distribution system as to deal with the computational bound problem existing on previously developed techniques as systems become larger. The reliability performance upstream flow procedure considers the interruption effect of downstream failure to upstream areas, and downstream flow procedure considers the interruption effect of upstream failure to downstream areas, and the combinations of these two procedures yields the reliability performance of any load point. Besides, section technique and shortest path method was employed to effectively simplify the equivalent path and accordingly reduced the computation events. The proposed methodology had been tested and benchmarked on IEEE standard reliability test system (RBTS). The simulations demonstrated that the obtained results from the proposed method are absolutely identical with the results obtained from failure mode and effect analysis (FMEA), and the privilege in improvement of calculation efficiency is also proved.