文獻標志碼:A
配電網可靠性評估方法研究現狀與展望
趙洪山,趙航宇
(華北電力大學電氣與電子工程學院,河北保定071003)
Current Status and Prospect of Reliability Evaluation Method for Distribution NetworkZHAO Hongshan, ZHAO Hangyu
(Department of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003,China)
摘要:配電網的可靠程度是決定供電可靠性的關鍵因素,配電網可靠性評估方法也被廣泛研究。根據前提條件的不同,將現有的配電網可靠性評估進行分類,介紹了不同類別下的可靠性評估方法,并分析其優缺點與適用的網絡。結合當前配電網可靠性評估中尚存在的不足與配電網的發展方向,對未來智能配電網下的可靠評估需要研究的地方進行了展望。
關鍵詞:配電網;可靠性評估;現狀;展望
文章編號:1007-2322(2015)05-0015-06
中圖分類號:TM715
基金項目:國家自然科學
收稿日期:2015-03-15
作者簡介:
Abstract:The reliability of distribution network is key factor for the power supply reliability, and the reliability evaluation method for distribution network has also been studied widely. According to different conditions, the existing reliability evaluation method for distribution network is classified in this paper. Different reliability evaluation method is introduced, and the advantages, disadvantages and the applicability of each method are also researched. By combining the shortcomings in reliability evaluation for distribution network and the development direction of distribution network, the problems of reliability evaluation that need to be researched in the future intelligent distribution network are prospected.
Keywords:distribution system; reliability evaluation; current status; prospect
0引言
配電網直接連接著用戶,是決定供電可靠性的關鍵環節,統計也表明大部分的停電事故都是因為配網側故障造成的,因此近些年來配電網的可靠性評估一直受到了廣泛的關注。配電網的可靠性主要通過可靠性指標來體現,目前大部分關于配電網可靠性的文獻也側重于對可靠性指標的計算。由于配電網網架結構復雜多樣,元件數目和種類眾多,因此配電網的可靠性評估是一個非常繁瑣的問題,但針對這個問題已經有許多方法被提出。這些可靠性評估方法的前提條件和適用的配電網各異:有些只針對簡單輻射狀的配電網,而有些則適用于含有復雜分支線路或者含有弱環網的配電網;有些認為配電網元件傳輸功率不受限制,在理想條件下考慮配電網的故障重構,有些則考慮了轉供元件最大傳輸容量的限制;……