本文關(guān)鍵詞： 配電自動(dòng)化終端 可靠性評(píng)估 遺傳算法 隱枚舉算法　出處：《湖北工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著社會(huì)經(jīng)濟(jì)的發(fā)展,配電網(wǎng)的網(wǎng)架結(jié)構(gòu)復(fù)雜程度越來(lái)越高,也嚴(yán)重影響了對(duì)配電網(wǎng)的安全經(jīng)濟(jì)運(yùn)行,電力用戶對(duì)于供電可靠性的要求越來(lái)越高,為了更好的達(dá)到用戶的對(duì)于供電可靠性水平的要求,以及實(shí)現(xiàn)配電網(wǎng)的科學(xué)管理和控制,減少線路投資運(yùn)行成本,需要綜合考慮網(wǎng)架規(guī)劃和配電自動(dòng)化終端配置,建立安全高效的信息化配電管理系統(tǒng)。通過(guò)對(duì)配電自動(dòng)化終端進(jìn)行配置,能提高配電網(wǎng)絡(luò)的供電可靠性,有效減少停電對(duì)用戶帶來(lái)的損失,同時(shí)還能提高配電網(wǎng)運(yùn)行的經(jīng)濟(jì)性。本文在同時(shí)考慮配電網(wǎng)可靠性和經(jīng)濟(jì)性的前提下,對(duì)配電自動(dòng)化終端的配置問(wèn)題進(jìn)行了研究。自動(dòng)化終端設(shè)備優(yōu)化配置是非線性的問(wèn)題,需要確定終端設(shè)備的類型、數(shù)量和位置,并確保滿足供電可靠性要求和節(jié)點(diǎn)電壓電流等約束條件。對(duì)于結(jié)構(gòu)較為復(fù)雜的配電網(wǎng)架的可靠性計(jì)算,本文提出一種改進(jìn)分塊的FMEA法,首先對(duì)配電網(wǎng)架進(jìn)行重新分布整合,將同時(shí)受到停電影響的區(qū)域內(nèi)的元件進(jìn)行等效疊加,從而使配電網(wǎng)簡(jiǎn)化為一個(gè)一個(gè)的塊狀結(jié)構(gòu),在計(jì)算某一塊的供電可靠性時(shí),其他塊區(qū)域內(nèi)的元件可以當(dāng)做一個(gè)整體進(jìn)行計(jì)算,使整個(gè)網(wǎng)絡(luò)的元件數(shù)量等效減少,從而提高計(jì)算效率。本文分別采用遺傳算法和隱枚舉算法對(duì)配電自動(dòng)化終端進(jìn)行優(yōu)化配置。通過(guò)遺傳算法求解配電網(wǎng)運(yùn)行方式優(yōu)化問(wèn)題,可以較好地利用其智能計(jì)算的特點(diǎn),提高了算法的計(jì)算速度和全局收斂特性。隱枚舉算法從完全枚舉的思路出發(fā),通過(guò)制定合適的規(guī)則,去掉不需要計(jì)算的組合,大大減少了計(jì)算步驟。在得出優(yōu)化配置的方案后,以可靠性指標(biāo)和經(jīng)濟(jì)性指標(biāo)作為約束條件從尋優(yōu)結(jié)果中找出最優(yōu)組合,從而達(dá)到在滿足系統(tǒng)運(yùn)行可靠性的同時(shí)系統(tǒng)的投資費(fèi)用最小。文章最后通過(guò)在MATLAB平臺(tái)中進(jìn)行程序設(shè)計(jì),在架空多分段單聯(lián)絡(luò)網(wǎng)實(shí)例上進(jìn)行了驗(yàn)證,并對(duì)算法的優(yōu)化結(jié)果進(jìn)行了分析論證,證明了本文研究算法的正確性和實(shí)用性。
[Abstract]:With the development of social economy, the complexity of distribution network structure is becoming more and more complex, which seriously affects the safe and economic operation of distribution network, and the demand of power users for the reliability of power supply is more and more high. In order to meet the requirements of users' reliability level of power supply, to realize the scientific management and control of distribution network, and to reduce the operating cost of line investment, it is necessary to consider the network planning and distribution automation terminal configuration synthetically. Establishing a safe and efficient information distribution management system. By configuring the distribution automation terminal, the reliability of distribution network can be improved, and the loss caused by power failure to users can be effectively reduced. At the same time, it can improve the economy of distribution network operation. In this paper, the distribution automation terminal configuration problem is studied under the premise of considering the reliability and economy of the distribution network. The optimization configuration of the automatic terminal equipment is a nonlinear problem. It is necessary to determine the type, quantity and location of terminal equipment, and to ensure that the reliability requirements of power supply and node voltage and current constraints are met. For the reliability calculation of distribution network frame with complex structure, an improved block FMEA method is proposed in this paper. First of all, the distribution network frame is redistributed and integrated, and the components in the area affected by the power failure are equivalent superimposed, so that the distribution network can be simplified into a block structure, and when calculating the power supply reliability of a certain block, Elements in other blocks can be calculated as a whole, reducing the number of components in the entire network. In this paper, genetic algorithm and implicit enumeration algorithm are used to optimize the distribution automation terminal, and the genetic algorithm is used to solve the distribution network operation mode optimization problem, which can make good use of its intelligent computing characteristics. The calculation speed and global convergence of the algorithm are improved. The implicit enumeration algorithm is based on the idea of complete enumeration. By making appropriate rules and eliminating the combination without calculation, the calculation steps are greatly reduced. Using reliability index and economic index as constraint conditions, the optimal combination is found out from the optimization result, so that the investment cost of the system can be minimized while satisfying the reliability of the system. Finally, the program is designed in the MATLAB platform. An example of aerial multi-segment single tie-net is given, and the optimization results of the algorithm are analyzed and demonstrated, which proves the correctness and practicability of the proposed algorithm.
【學(xué)位授予單位】：湖北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM732

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本文編號(hào)：1500362