电网技术
電網技術
전망기술
POWER SYSTEM TECHNOLOGY
2011年
11期
125-129
,共5页
王佳明%刘文颖%李群炬%李静
王佳明%劉文穎%李群炬%李靜
왕가명%류문영%리군거%리정
短路电流%多层次模糊综合评价模型%模糊行为指标
短路電流%多層次模糊綜閤評價模型%模糊行為指標
단로전류%다층차모호종합평개모형%모호행위지표
short circuit current%multilevel fuzzy comprehensive evaluation model%fuzzy behavior indices
提出了一种基于多层次模糊综合评价模型的短路电流限制措施优化配置方法。首先基于层次分析法建立限流措施方案评估的递阶层次结构关系图和多层次模糊综合评价模型;然后构建判断矩阵确定各层次间的权重;最后,引入模糊行为指标和隶属度函数综合考虑电网的短路电流水平、静态安全性、暂态稳定性和运行经济性。通过多层次模糊综合评价对各限流方案进行系统、全面、定量的决策。以京津唐电网为例进行了仿真计算,验证了该方法的可行性和实用性。
提齣瞭一種基于多層次模糊綜閤評價模型的短路電流限製措施優化配置方法。首先基于層次分析法建立限流措施方案評估的遞階層次結構關繫圖和多層次模糊綜閤評價模型;然後構建判斷矩陣確定各層次間的權重;最後,引入模糊行為指標和隸屬度函數綜閤攷慮電網的短路電流水平、靜態安全性、暫態穩定性和運行經濟性。通過多層次模糊綜閤評價對各限流方案進行繫統、全麵、定量的決策。以京津唐電網為例進行瞭倣真計算,驗證瞭該方法的可行性和實用性。
제출료일충기우다층차모호종합평개모형적단로전류한제조시우화배치방법。수선기우층차분석법건립한류조시방안평고적체계층차결구관계도화다층차모호종합평개모형;연후구건판단구진학정각층차간적권중;최후,인입모호행위지표화대속도함수종합고필전망적단로전류수평、정태안전성、잠태은정성화운행경제성。통과다층차모호종합평개대각한류방안진행계통、전면、정량적결책。이경진당전망위례진행료방진계산,험증료해방법적가행성화실용성。
A method to optimally configure short-circuit current limitation measures based on multilevel fuzzy comprehensive evaluation model is proposed. Firstly based on analytical hierarchy process, a hierarchical structural diagram to evaluate short-circuit current limitation measures and a multilevel fuzzy comprehensive evaluation model are built; then a judging matrix is constructed to determine the weights of different levels; finally, fuzzy behavoir indices and membership function are led in to comprehensivly consider the short-circuit current levels, static security, transient stability and operational economy of power system, and by means of multilevel fuzzy comprehensive evaluation a systemical, overall and quantitative decision-making for various short-circuit current limitation schemes is conducted. Taking Beijing-Tianjin-Tangshan power grid for example, the feasibility and practicality of the proposed method are verified by simulation results.