基于模糊聚類和最短路徑的關(guān)鍵輸電斷面確定新方法
[Abstract]:To solve the problem of how to determine the key sections of power flow transfer after branch fault or overload is removed correctly and quickly, a new method of fast searching for key transmission sections of power flow transfer based on fuzzy clustering and shortest path is proposed. In this method, a random clustering method with adaptive selection of optimal classification number is used to classify all line power components, and the parallel branch sets of fault or overload branches are obtained to form the initial transmission section. In order to avoid the problem of multi-selection and leakage caused by the improper number of artificial given classifications; and then for each branch of the initial transmission section, Starting in turn from one end of the fault or overload branch to the shortest path from the fault or overload branch to the other end of the fault or overload branch on which all branches in the same direction as the fault or overload branch flow, All of them are candidate branches in key transmission sections to supplement the possible missing selection of candidate branches determined only by clustering method, and the candidate branches can be determined by simple distribution factor checking to determine whether the candidate branch is a branch in the critical transmission section. This method realizes the organic fusion and complementary advantages of the key transmission section selection method based on branch power clustering and the shortest path key transmission section selection method, and improves the identification accuracy. Several examples show the effectiveness of the proposed method.
【作者單位】: 同濟(jì)大學(xué)電子與信息工程學(xué)院;天津大學(xué)電氣與自動化工程學(xué)院;國網(wǎng)安徽省電力公司調(diào)度中心;北京科東電力控制系統(tǒng)有限責(zé)任公司;
【分類號】:TM73
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