本文選題：配電網(wǎng)投資 + 剛性投資��； 參考：《重慶大學》2015年碩士論文

【摘要】：配電網(wǎng)作為聯(lián)系終端用戶與發(fā)、輸電系統(tǒng)的紐帶,是保證用戶安全可靠用電必不可少的環(huán)節(jié)。隨著國民經(jīng)濟的快速發(fā)展,用戶的電力需求逐年上升,供電企業(yè)及政府相關部門加大了對配電網(wǎng)建設的投資,如何將這筆配電網(wǎng)建設資金合理、有效的分配到各地區(qū),適應地方經(jīng)濟發(fā)展,成為當前配電網(wǎng)亟待解決的課題之一。本文以提高投資效益、均衡各地區(qū)電網(wǎng)發(fā)展為出發(fā)點,充分考慮市場環(huán)境下配電網(wǎng)現(xiàn)狀和負荷電量變化等多方面,首次系統(tǒng)的提出了適用于省、市供電公司對下級地區(qū)配電網(wǎng)投資分配決策的模型和方法,并開發(fā)了相應的配電網(wǎng)投資分配決策輔助軟件,為供電公司的配電網(wǎng)投資分配決策提供參考。首先,針對配電網(wǎng)投資分配決策提出了各地區(qū)剛性投資、柔性投資、經(jīng)濟投資及配電網(wǎng)投資上限、下限的概念和計算方法,推導了改造比例與設備使用年限和負荷增長率的關系表達式。剛性投資為滿足現(xiàn)狀負荷、新增負荷需求及滿足某些硬性要求所需的基本投資,柔性投資為省、市供電公司批復的總投資減去基本投資外的投資,經(jīng)濟投資為在電量、電價、內部收益率一定的情況下配電網(wǎng)建設所需的投資,配電網(wǎng)投資上限及下限用于合理的調整各地區(qū)的配電網(wǎng)投資。其次,提出了四種實用的涉及柔性投資的分配模型和方法,分別為按等收益率分配、按配電網(wǎng)剛性需求分配、按相關電量分配和綜合分配,但各地區(qū)配電網(wǎng)投資分配要受配電網(wǎng)投資區(qū)間上下限的約束。然后,基于投資分配決策模型開發(fā)相應的配電網(wǎng)投資分配決策輔助軟件。從供電企業(yè)應用的角度出發(fā),通過簡捷、靈活的界面及其功能設計,為用戶提供了實用的配電網(wǎng)輔助決策軟件。最后,以某省電力公司直屬的15個市供電公司為研究對象,根據(jù)提出的配電網(wǎng)投資分配決策模型及算法,對各市公司過去一年的投資分配數(shù)據(jù)進行分析研究,并對其規(guī)劃年的配電網(wǎng)投資分配提出合理的建議。實例表明了模型及算法的實用性、合理性及有效性。
[Abstract]:As a link between end users and transmission systems, distribution network is an essential link to ensure the safety and reliability of power consumption. With the rapid development of national economy, the power demand of users is rising year by year. Power supply enterprises and government departments have increased their investment in distribution network construction. How to allocate the distribution network construction funds rationally and effectively to all regions, Adapting to the development of local economy has become one of the urgent problems of distribution network. In order to improve the investment benefit, balance the development of the power grid in different regions, and consider the current situation of the distribution network and the change of the load and quantity of electricity in the market environment, this paper puts forward the system for the first time, which is suitable for the province. The model and method of the distribution network investment allocation decision in the lower level area by the municipal power supply company, and the corresponding auxiliary software for the distribution network investment distribution decision are developed, which can provide a reference for the distribution network investment allocation decision of the power supply company. First of all, the concept and calculation method of rigid investment, flexible investment, economic investment and upper and lower limit of distribution network investment are put forward for distribution network investment allocation decision. The relationship between the proportion of revamping and the service life of the equipment and the load growth rate is derived. The rigid investment is the basic investment required to meet the current load, the new load demand and some hard requirements. The flexible investment is the total investment approved by the municipal power supply company minus the basic investment, and the economic investment is the electricity quantity in place, the electricity price. The upper and lower limit of distribution network investment is used to adjust the distribution network investment reasonably. Secondly, four practical allocation models and methods involving flexible investment are put forward, which are distributed according to equal rate of return, distribution according to rigid demand of distribution network, distribution according to related electricity quantity and comprehensive distribution. However, the distribution network investment allocation is restricted by the upper and lower limits of the distribution network investment interval. Then, based on the investment distribution decision model, the corresponding distribution network investment allocation decision support software is developed. From the point of view of the application of power supply enterprises, through simple and flexible interface design and its function design, the paper provides users with practical auxiliary decision software for distribution network. Finally, taking 15 power supply companies directly under a provincial power company as the research object, according to the proposed distribution network investment allocation decision model and algorithm, this paper analyzes and studies the investment allocation data of each city company in the past year. Reasonable suggestions are put forward for the distribution network investment allocation in the planning year. Examples show the practicability, rationality and validity of the model and algorithm.
【學位授予單位】：重慶大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM73

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