本文選題：節(jié)能降損 + 配電網(wǎng)��； 參考：《重慶大學》2014年碩士論文

【摘要】：電力工業(yè)是我國能源消耗的主要行業(yè)，我國配電網(wǎng)線損率與國外發(fā)達國家線損率相比具有一定差距，有效降低配電網(wǎng)損耗對實現(xiàn)電力系統(tǒng)節(jié)能降損具有深遠意義。目前，配電網(wǎng)節(jié)能降損研究中存在兩方面問題：配電網(wǎng)線損管理大多只是對線損率進行計算和簡單的統(tǒng)計，無法從現(xiàn)有的線損管理及損耗分析中得到影響配電網(wǎng)損耗的重要因素，因而降損工作具有一定盲目性，對降損措施的優(yōu)選和實施缺少指導性；配電網(wǎng)降損研究大多針對的是配電網(wǎng)損耗薄弱環(huán)節(jié)的一個方面，研究單一降損措施的優(yōu)化實施方案，但實際配電網(wǎng)降損必然會涉及到多種降損措施共同實施的情況，由于投資成本的限制、綜合降損效益最優(yōu)的要求等，對單一降損措施的研究無法有效地得到基于多降損措施的配電網(wǎng)降損方案。為了解決上述問題，本文研究了城市中低壓配電網(wǎng)損耗分析以及降損技術(shù)選擇方法，主要研究內(nèi)容如下： 通過研究配電網(wǎng)技術(shù)損耗的計算原理，針對配電網(wǎng)的大量電網(wǎng)參數(shù)，根據(jù)參數(shù)影響配電網(wǎng)主要設(shè)備的技術(shù)損耗則影響配電網(wǎng)技術(shù)損耗的原則，提出配電網(wǎng)損耗影響因素集合，并通過建立輻射狀配電網(wǎng)仿真網(wǎng)絡(luò)得到損耗影響因素對配電網(wǎng)技術(shù)損耗的影響規(guī)律；基于所提出的損耗影響因素，研究了與其對應(yīng)的降損措施的降損原理和實施原則，降損措施能通過改善與之對應(yīng)的損耗影響因素進而達到降低配電網(wǎng)損耗的目的。 針對現(xiàn)有配電網(wǎng)損耗分析的研究缺乏對主要損耗影響因素分析的問題，本文在配電網(wǎng)損耗影響因素的基礎(chǔ)上，通過人工統(tǒng)計數(shù)據(jù)和SCADA/EMS系統(tǒng)的測量數(shù)據(jù)來獲取損耗分析的基本信息；為了提高基本信息獲取的精確性，采用數(shù)據(jù)填充和不良數(shù)據(jù)識別與調(diào)整方法對獲取的數(shù)據(jù)進行處理；針對配電網(wǎng)運行中的不確定性，基于多場景技術(shù)建立了用于損耗分析的配電網(wǎng)場景與分析場景，針對分析場景，建立了配電網(wǎng)損耗分析的指標體系，并應(yīng)用灰色關(guān)聯(lián)分析法對生成的分析場景的損耗分析指標進行關(guān)聯(lián)度與貢獻度的計算，以此確定出配電網(wǎng)技術(shù)損耗影響因素對配電網(wǎng)線損率的影響程度，，進而確立現(xiàn)狀配電網(wǎng)的重要損耗影響因素。 針對當前配電網(wǎng)降損研究中大多只針對某一方面進行優(yōu)化，無法對現(xiàn)狀配電網(wǎng)的多個薄弱方面進行降損優(yōu)化決策的問題，本文研究了多降損措施組合的中低壓配電網(wǎng)優(yōu)化模型及其方法。在現(xiàn)有降損優(yōu)化算法和人工經(jīng)驗的基礎(chǔ)上，根據(jù)不同的降損措施種類及其實施方案，構(gòu)建了用于優(yōu)化決策的降損備選方案集合；通過研究損耗電量的多目標效益評價，結(jié)合全壽命周期理論建立了能夠反映綜合降損效益的決策目標函數(shù)；針對目前降損優(yōu)化都以建設(shè)費用最低為優(yōu)化目標，沒有考慮實際投資限制的問題，建立了以可靠性、安全性和投資限制為主的決策約束條件。所提出的決策方法能夠在選擇配電網(wǎng)降損措施的同時計及中低壓配電網(wǎng)的多個規(guī)劃目標：滿足運行約束、優(yōu)化降損效益，因而最終決策方法具有最優(yōu)的綜合效益。
[Abstract]:Electric power industry is the main industry in our country ' s energy consumption , the loss rate of distribution network in China has a certain gap compared with the line loss rate of developed countries , and it is of great significance to reduce the loss of distribution network effectively .
In order to solve the above problems , the loss analysis of low - voltage distribution network and the selection method of loss - loss technology are studied in this paper . The main research contents are as follows :

By studying the calculation principle of distribution network technology loss , aiming at the large number of power grid parameters of distribution network , the technical loss of main equipment of power distribution network is influenced according to the parameters , and the principle of distribution network loss is affected , and the influence factors on distribution network loss are put forward , and the influence law of loss influencing factors on the technical loss of distribution network is obtained by establishing the simulation network of radial distribution network ;
Based on the proposed loss influence factors , the loss principle and implementation principle of the corresponding loss reduction measures are studied , and the reduction measures can reduce the loss of the distribution network by improving the corresponding loss influencing factors .

Aiming at the problem of the analysis of the main loss factors in the research of the current distribution network loss analysis , the basic information of loss analysis is obtained by the artificial statistic data and the measurement data of the SCADA / EMS system on the basis of the influence factors of the distribution network loss ;
in order to improve the accuracy of the basic information acquisition , the acquired data is processed by adopting a data filling and bad data identification and adjustment method ;
Aiming at the uncertainty in the operation of distribution network , based on the multi - scene technology , a power distribution network scenario and an analysis scene for loss analysis are established . According to the analysis scene , the index system of distribution network loss analysis is established , and the calculation of the correlation degree and contribution degree is carried out on the loss analysis indexes of the generated analysis scene by using the gray correlation analysis method , so as to determine the influence degree of the influence factors of the technical loss of the distribution network on the loss rate of the distribution network , and further establish the important loss influencing factor of the current distribution network .

In this paper , the optimization model and its method of middle and low voltage distribution network are studied in this paper , which is based on the existing loss - loss optimization algorithm and artificial experience .
By studying the multi - objective benefit evaluation of loss power consumption , a decision objective function which can reflect the comprehensive loss - loss benefit is established in combination with the theory of full - life cycle .
Aiming at the problem of the lowest cost of construction cost and not considering the actual investment limit , the decision - making method based on reliability , safety and investment restriction is established . The decision - making method can meet the planning objectives of the medium - and low - voltage distribution network at the same time of selecting distribution network loss - loss measures : meeting the operational constraints and optimizing the loss - loss benefit , so that the final decision - making method has the best comprehensive benefit .
【學位授予單位】：重慶大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM727.2

【參考文獻】

相關(guān)期刊論文 前10條

1 林志雄;陳巖;蔡金錠;李天友;;低壓配電網(wǎng)三相不平衡運行的影響及治理措施[J];電力科學與技術(shù)學報;2009年03期

2 韓松;郜小娜;邱國躍;高華;趙溫鴻;;考慮分布式電源的配電網(wǎng)線損估算方法[J];電力科學與技術(shù)學報;2009年04期

3 麻秀范;崔換君;;改進遺傳算法在含分布式電源的配電網(wǎng)規(guī)劃中的應(yīng)用[J];電工技術(shù)學報;2011年03期

4 翁雙安;劉建林;王輝;;配電變壓器容量選擇的經(jīng)濟評價[J];電氣應(yīng)用;2007年01期

5 王成山,唐曉莉,余貽鑫,張毅;基于啟發(fā)式算法和Bender’s分解的無功優(yōu)化規(guī)劃[J];電力系統(tǒng)自動化;1998年11期

6 王成山;劉濤;謝瑩華;;基于混合遺傳算法的變電站選址定容[J];電力系統(tǒng)自動化;2006年06期

7 陳海涵;鄧昌輝;程啟誠;;配電網(wǎng)無功補償降損效果的評估[J];電力系統(tǒng)自動化;2006年13期

8 牛衛(wèi)平;劉自發(fā);張建華;閆景信;;基于GIS和微分進化算法的變電站選址及定容[J];電力系統(tǒng)自動化;2007年18期

9 李子韻;姜寧;;20kV電壓等級在南京中壓配電網(wǎng)的推廣應(yīng)用[J];電力系統(tǒng)自動化;2008年20期

10 宋奕冰,婁北;基于新的數(shù)據(jù)處理方式的理論線損計算[J];電力自動化設(shè)備;2001年05期

相關(guān)博士學位論文 前1條

1 于佳;配電網(wǎng)規(guī)劃優(yōu)化方法的研究[D];沈陽農(nóng)業(yè)大學;2008年

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