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基于NSGA-Ⅱ的船舶電網(wǎng)故障重構(gòu)

發(fā)布時(shí)間:2018-02-26 11:23

  本文關(guān)鍵詞: 艦船電網(wǎng) NSGA-Ⅱ算法 故障重構(gòu) 出處:《大連海事大學(xué)》2015年碩士論文 論文類(lèi)型:學(xué)位論文


【摘要】:伴隨著現(xiàn)代海軍艦船向大型化、全電力化方向發(fā)展,艦船設(shè)備電氣化、自動(dòng)化程度不斷地提高,對(duì)艦船電網(wǎng)系統(tǒng)供電的持續(xù)性和可靠性提出了很高的要求,要求在艦船電網(wǎng)發(fā)生被攻擊或人為故障時(shí),艦船電力系統(tǒng)能夠快速重構(gòu)系統(tǒng),維持對(duì)負(fù)載最大限度的供電。艦船電網(wǎng)故障重構(gòu)實(shí)際上是屬于離散型,多約束、多目標(biāo)的組合優(yōu)化問(wèn)題。最優(yōu)重構(gòu)方案的生成是艦船電網(wǎng)故障恢復(fù)體系的主要核心,是整個(gè)故障恢復(fù)后效果的重中之重,本文主要工作就是解決如何快速、高效的制定出開(kāi)關(guān)組合狀態(tài),提高艦船電網(wǎng)的穩(wěn)定性。本文首先分析艦船電網(wǎng)的各種模型,確定以環(huán)行供電網(wǎng)絡(luò)為研究對(duì)象模型,將電網(wǎng)中開(kāi)關(guān)的開(kāi)斷屬性映射到負(fù)載設(shè)備上,結(jié)合實(shí)際要求建立了最大限度恢復(fù)負(fù)載供電量、最少開(kāi)關(guān)動(dòng)作次數(shù)兩個(gè)目標(biāo)函數(shù)目標(biāo)函數(shù),并且設(shè)置了以電氣連接約束和支路負(fù)荷容量限制為尋優(yōu)搜索的約束條件,通過(guò)NSGA-Ⅱ算法尋優(yōu)出符合要求的故障恢復(fù)方案。利用具體案例驗(yàn)證了算法的可行性,并與其他算法進(jìn)行比較得出了算法的優(yōu)越性。
[Abstract]:With the development of modern naval vessels towards large scale and full electric power, the equipment of naval vessels is electrified and the degree of automation is continuously improved, which puts forward high requirements for the continuity and reliability of the power supply of naval power grid system. It is required that the ship power system be able to quickly reconstruct the system and maintain the maximum power supply to the load when the ship power network is under attack or human fault. In fact, the ship power network fault reconfiguration is discrete and multi-constrained. The generation of optimal reconfiguration scheme is the main core of ship power network fault recovery system and the most important part of the whole fault recovery effect. The main work of this paper is how to solve the problem quickly. In order to improve the stability of ship power network, the switching combination state is established efficiently. Firstly, the various models of ship power network are analyzed, and the model of loop power supply network is determined to map the switching off attribute to the load equipment. Combined with practical requirements, the objective function of two objective functions, maximum recovery of load supply and minimum number of switching operations, is established, and the constraints of searching for optimization are set up with the constraints of electrical connection and branch load capacity. The NSGA- 鈪,

本文編號(hào):1537810

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