多方面改進(jìn)的自動(dòng)搜索斷面
發(fā)布時(shí)間:2019-01-19 19:48
【摘要】:斷面是電網(wǎng)的脆弱環(huán)節(jié),而斷面的識(shí)別通常依靠專家經(jīng)驗(yàn);針對(duì)此局限,提出了多方面改進(jìn)的自動(dòng)搜索斷面法。首先基于電網(wǎng)分區(qū)原則對(duì)Louvain算法進(jìn)行改進(jìn);進(jìn)而采用改進(jìn)后的算法對(duì)電網(wǎng)進(jìn)行分區(qū),將各區(qū)域之間的聯(lián)絡(luò)線作為初始斷面;再根據(jù)支路開(kāi)斷分布系數(shù)、安全裕度等約束遞進(jìn)識(shí)別輸電斷面、關(guān)鍵斷面。為高效計(jì)算斷面熱穩(wěn)定極限,建立斷面熱穩(wěn)定極限的數(shù)學(xué)模型。通過(guò)改進(jìn)雞群優(yōu)化算法對(duì)該模型進(jìn)行求解,得到斷面?zhèn)鬏敇O限,從而得到關(guān)鍵斷面。在IEEE39節(jié)點(diǎn)系統(tǒng)驗(yàn)證了所提方法的有效性。
[Abstract]:The section is the weak link of the power network, and the identification of the section usually depends on the expert experience. In view of this limitation, a multi-aspect improved automatic search section method is proposed. Firstly, the Louvain algorithm is improved based on the principle of power grid partition, and then the improved algorithm is used to partition the power grid, and the tie lines between the regions are taken as the initial section. Then the key sections are identified by the constraints of branch breaking distribution coefficient, safety margin and so on. In order to calculate the thermal stability limit of the section, a mathematical model of the thermal stability limit of the section is established. The model is solved by the improved chicken swarm optimization algorithm, and the transmission limit of the section is obtained, and the key section is obtained. The effectiveness of the proposed method is verified in the IEEE39 node system.
【作者單位】: 四川大學(xué)電氣信息學(xué)院;
【基金】:成都市科技項(xiàng)目(2015-HM01-00132-SF)資助
【分類號(hào)】:TM711
[Abstract]:The section is the weak link of the power network, and the identification of the section usually depends on the expert experience. In view of this limitation, a multi-aspect improved automatic search section method is proposed. Firstly, the Louvain algorithm is improved based on the principle of power grid partition, and then the improved algorithm is used to partition the power grid, and the tie lines between the regions are taken as the initial section. Then the key sections are identified by the constraints of branch breaking distribution coefficient, safety margin and so on. In order to calculate the thermal stability limit of the section, a mathematical model of the thermal stability limit of the section is established. The model is solved by the improved chicken swarm optimization algorithm, and the transmission limit of the section is obtained, and the key section is obtained. The effectiveness of the proposed method is verified in the IEEE39 node system.
【作者單位】: 四川大學(xué)電氣信息學(xué)院;
【基金】:成都市科技項(xiàng)目(2015-HM01-00132-SF)資助
【分類號(hào)】:TM711
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