电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2015年
15期
34-40
,共7页
潮流转移%输电断面%前K最短路径%汽车接力
潮流轉移%輸電斷麵%前K最短路徑%汽車接力
조류전이%수전단면%전K최단로경%기차접력
flow transferring%transmission section%K shortest paths%automotive relay
提出了一种基于汽车接力模型的快速搜索输电断面的新算法。首先将电力网络转化成拓扑图,将系统节点、线路阻抗分别视作车站、路径长短,然后利用若干辆相同汽车在始发站和终点站之间的若干站点之间进行按照一定规则的接力赛,由于所走路径越短则油耗量越少,最后将终点站的所有车按剩油量多少排序,即可回溯得到始发站和终点站之间的前K条最短路径,本算法无需派生大量子图,无需多次求解最短路径。引入了基于直流潮流的潮流转移系数,分别计算搜到路径所包含的各条线路的潮流转移系数,将大于某一值的线路加入到输电断面中,最终得到精确的无漏选的输电断面集合。避免了只搜索单一路径的范围太小,而使部分支路漏选。最后对IEEE30节点系统进行仿真分析,验证了该算法的有效性。
提齣瞭一種基于汽車接力模型的快速搜索輸電斷麵的新算法。首先將電力網絡轉化成拓撲圖,將繫統節點、線路阻抗分彆視作車站、路徑長短,然後利用若榦輛相同汽車在始髮站和終點站之間的若榦站點之間進行按照一定規則的接力賽,由于所走路徑越短則油耗量越少,最後將終點站的所有車按剩油量多少排序,即可迴溯得到始髮站和終點站之間的前K條最短路徑,本算法無需派生大量子圖,無需多次求解最短路徑。引入瞭基于直流潮流的潮流轉移繫數,分彆計算搜到路徑所包含的各條線路的潮流轉移繫數,將大于某一值的線路加入到輸電斷麵中,最終得到精確的無漏選的輸電斷麵集閤。避免瞭隻搜索單一路徑的範圍太小,而使部分支路漏選。最後對IEEE30節點繫統進行倣真分析,驗證瞭該算法的有效性。
제출료일충기우기차접력모형적쾌속수색수전단면적신산법。수선장전력망락전화성탁복도,장계통절점、선로조항분별시작차참、로경장단,연후이용약간량상동기차재시발참화종점참지간적약간참점지간진행안조일정규칙적접력새,유우소주로경월단칙유모량월소,최후장종점참적소유차안잉유량다소배서,즉가회소득도시발참화종점참지간적전K조최단로경,본산법무수파생대양자도,무수다차구해최단로경。인입료기우직류조류적조류전이계수,분별계산수도로경소포함적각조선로적조류전이계수,장대우모일치적선로가입도수전단면중,최종득도정학적무루선적수전단면집합。피면료지수색단일로경적범위태소,이사부분지로루선。최후대IEEE30절점계통진행방진분석,험증료해산법적유효성。
A new algorithm based on automotive relay model is presented to quickly search the transmission section . Firstly, the power network can be turned into a topology , with nodes as stations and line impedance as path length . Secondly , according to certain rules , several cars of the same type take part in a relay between originating and termi-nal station.Thirdly, as fuel consumption is proportional to the path length , and cars could be sorted according to its remaining amount of gasoline , which means K shortest paths could be searched through backtracking .Large amounts of sub graphs don ’ t need deriving , and the shortest paths could be got without repeatedly solving .The DC power flow transferring coefficient is introduced , and the coefficients of each branch in the paths searched are calculated .And the branches whose coefficient above certain value should join the transmission sections and an accurate transmission sec -tion set without leaking lines is reached .Compared to the usage of a single path whose search range is too small , the automotive relay algorithm could avoid leaking lines and ensure integrity of transmission section .Finally, an IEEE30 node system simulation is analyzed , which demonstrates the effectiveness of the algorithm .