基于遺傳算法的變電站開(kāi)關(guān)電阻在線計(jì)算方法
侯洋，王茂飛，卜京，宋子健，鄭冉
(南京理工大學(xué) 自動(dòng)化學(xué)院，江蘇 南京 210094)
摘 要： 針對(duì)3/2 接線方式變電站開(kāi)關(guān)電阻在線計(jì)算的問(wèn)題，提出了一種基于遺傳算法的計(jì)算方法。利用流過(guò)開(kāi)關(guān)設(shè)備的電流和開(kāi)關(guān)電阻建立最優(yōu)規(guī)劃模型，將計(jì)算開(kāi)關(guān)電阻的問(wèn)題轉(zhuǎn)化為解決最優(yōu)規(guī)劃問(wèn)題。在計(jì)算過(guò)程中，采用遺傳算法可以避免傳統(tǒng)方法求解多維空間規(guī)劃問(wèn)題帶來(lái)的復(fù)雜性。用某500 kV 變電站的實(shí)測(cè)電流數(shù)據(jù)進(jìn)行仿真計(jì)算，驗(yàn)證了該方法的可行性。
關(guān)鍵詞： 在線評(píng)估；開(kāi)關(guān)電阻；最優(yōu)規(guī)劃；遺傳算法
中圖分類(lèi)號(hào)：TM934 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2015)07-0010-04
Online Calculating Method of Substation Switchgear Resistance Based on Genetic Algorithm
HOU Yang, WANG Mao-fei, BU Jing, SONG Zi-jian, ZHENG Ran
（School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China）
Abstract: Aiming at the online calculation problem of 3/2 wiring connection switchgear resistance, this paper proposed a kind of online calculation method based on genetic algorithm. By the use of the current and resistance of the switching equipment, the optimal planning model was established, and the problem of calculating the resistance of the switching equipment was transformed into an optimal planning problem. In the process of calculation, instead of conventional method, the genetic algorithm was used to avoid the great complexity caused by solving the problem of multidimensional space planning. Based on the current data obtained from the 500 kV substation, simulation studies are carried out and the results verify the effectiveness of the proposed method.
Key words: online calculation; switchgear resistance; optimal plan; genetic algorithm
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