电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2014年
9期
35-40
,共6页
刘永光%徐景涛%廖春成%张卉
劉永光%徐景濤%廖春成%張卉
류영광%서경도%료춘성%장훼
遗传算法%线路损耗最少%配电网重构%边窗编码( EWD)%约束
遺傳算法%線路損耗最少%配電網重構%邊窗編碼( EWD)%約束
유전산법%선로손모최소%배전망중구%변창편마( EWD)%약속
genetic algorithm%line loss%distribution network reconfiguration%EWD%restrain
针对传统遗传算法在解决具有径向约束的配电网重构( DSR)问题时,搜索寻优难以得到准确的全局最优解,且采用二进制编码,使得编码位串长度较大等不足,提出了一种基于EWD( edge-window-decoder)编码的遗传算法。该遗传算法使用边窗( EWD)编码,将损耗最少及其他约束条件作为适应度函数,通过遗传操作,在所有满足约束条件的解(径向拓扑)中,选择一个最优的网络拓扑结构。通过对一典型的84节点配电系统进行重构举例,与其他方法进行比较,数据结果表明,提出的算法具有一定的实用性和有效性。
針對傳統遺傳算法在解決具有徑嚮約束的配電網重構( DSR)問題時,搜索尋優難以得到準確的全跼最優解,且採用二進製編碼,使得編碼位串長度較大等不足,提齣瞭一種基于EWD( edge-window-decoder)編碼的遺傳算法。該遺傳算法使用邊窗( EWD)編碼,將損耗最少及其他約束條件作為適應度函數,通過遺傳操作,在所有滿足約束條件的解(徑嚮拓撲)中,選擇一箇最優的網絡拓撲結構。通過對一典型的84節點配電繫統進行重構舉例,與其他方法進行比較,數據結果錶明,提齣的算法具有一定的實用性和有效性。
침대전통유전산법재해결구유경향약속적배전망중구( DSR)문제시,수색심우난이득도준학적전국최우해,차채용이진제편마,사득편마위천장도교대등불족,제출료일충기우EWD( edge-window-decoder)편마적유전산법。해유전산법사용변창( EWD)편마,장손모최소급기타약속조건작위괄응도함수,통과유전조작,재소유만족약속조건적해(경향탁복)중,선택일개최우적망락탁복결구。통과대일전형적84절점배전계통진행중구거례,여기타방법진행비교,수거결과표명,제출적산법구유일정적실용성화유효성。
Aiming at the problem of traditional genetic algorithm in solving distribution network reconfiguration ( DSR) with radial constraint that it is difficult to get the global optimal accurate solution, while using the binary cod-ing, the bit string is length and larger. A genetic algorithm method based on EWD( edge-window-decoder) is presen-ted, taking the least line loss and other constrains as functions to select an optimal solution from all that meets con-strain condition ( radial topology ) through genetic operation. Through the reconstruction examples of a typical 84 nodes in the distribution system, data results show that the proposed algorithm is practical and effective compared with other methods.