CAJ | 학술논문

为了更好地对配电网的安全性和设备利用率进行评估,提出一种基于线性规划法求解任意接线、任意容量连通系的最大利用率的方法,提出一系列考虑负荷变化及N-1准则满足程度的评估指标,包括实时利用率、实时缺额率、平均利用率、平均缺额率、N-1准则满足时间比率、N-1准则满足程度、满足N-1准则的风险度和满足N-1准则的临界负荷调整比例,并给出了评估方法。结合实例论述了其典型应用,结果表明：所提出的评估指标为配电网设计、运行与改造提供了更多的参考信息,通过合理优化分段开关的安装位置,可以改善指标、提高利用率和N-1准则满足程度。
위료경호지대배전망적안전성화설비이용솔진행평고,제출일충기우선성규화법구해임의접선、임의용량련통계적최대이용솔적방법,제출일계렬고필부하변화급N-1준칙만족정도적평고지표,포괄실시이용솔、실시결액솔、평균이용솔、평균결액솔、N-1준칙만족시간비솔、N-1준칙만족정도、만족N-1준칙적풍험도화만족N-1준칙적림계부하조정비례,병급출료평고방법。결합실례논술료기전형응용,결과표명：소제출적평고지표위배전망설계、운행여개조제공료경다적삼고신식,통과합리우화분단개관적안장위치,가이개선지표、제고이용솔화N-1준칙만족정도。
To help better evaluate the safety and utilization of distribution networks,a linear programming-based approach to obtaining the maximum utilization ratio of distribution systems with arbitrary topologies and capacities is put forward.A series of safety indices considering load variation are proposed,including the real-time utilization ratio,real-time shortage ratio,averaged utilization ratio,averaged shortage ratio,N-1 criterion meeting to duration ratio,N-1 criterion meeting,N-1 criterion meeting risk,and regulating ratio of N-1 criterion meeting critical load.The steps of evaluation are suggested.Several examples are given to illustrate typical applications of the approaches proposed showing that it is feasible and can provide more information to planning,operation and engineering of distribution systems.It is also shown that the indices of utilization and extent for meeting N-1 criterion can be improved by optimizing the allocation of the sectionalizing switches on the feeders.