本文關(guān)鍵詞：基于云模型和灰色模糊綜合評(píng)判的高壓斷路器狀態(tài)評(píng)估　出處：《山東大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 高壓斷路器 狀態(tài)評(píng)估 云模型 灰色模糊綜合評(píng)判 點(diǎn)灰度

【摘要】：隨著社會(huì)和經(jīng)濟(jì)的發(fā)展,為滿足生產(chǎn)和生活的需求,電網(wǎng)的規(guī)模進(jìn)一步擴(kuò)大,其安全穩(wěn)定運(yùn)行將面臨著更加嚴(yán)峻的考驗(yàn),作為電力系統(tǒng)的重要組成部分,電力設(shè)備的運(yùn)行狀態(tài)將直接影響電力系統(tǒng)的運(yùn)行。高壓斷路器作為電力系統(tǒng)的核心開(kāi)關(guān)設(shè)備,在電網(wǎng)中起到保護(hù)與控制雙重作用,其保護(hù)作用主要體現(xiàn)在當(dāng)電力線路或設(shè)備發(fā)生故障時(shí),配合繼電保護(hù)裝置,快速切除電力系統(tǒng)故障,保證系統(tǒng)中非故障區(qū)域正常運(yùn)行,其控制作用主要體現(xiàn)在電力系統(tǒng)正常運(yùn)行時(shí),把部分電力設(shè)備或線路投入或切除,以滿足電力系統(tǒng)運(yùn)行需求。高壓斷路器在運(yùn)行過(guò)程中承受電、熱、環(huán)境等因素的影響,其性能將發(fā)生一定程度的劣化,從而對(duì)電力系統(tǒng)的穩(wěn)定運(yùn)行造成潛在的威脅,若劣化至一定程度則發(fā)展為故障,將對(duì)電力系統(tǒng)的運(yùn)行產(chǎn)生直接影響,輕則引起部分用戶斷電,或者造成部分電力設(shè)備的損壞,重則引起電力系統(tǒng)連鎖反應(yīng)導(dǎo)致系統(tǒng)的崩潰,即大面積停電,將對(duì)人們的生產(chǎn)與生活造成重大的影響。因此,對(duì)高壓斷路器進(jìn)行準(zhǔn)確有效的狀態(tài)評(píng)估為進(jìn)一步制定維護(hù)計(jì)劃保證電力系統(tǒng)的安全穩(wěn)定運(yùn)行具有重要的意義。高壓斷路器狀態(tài)評(píng)估系統(tǒng)作為一個(gè)復(fù)雜的多因素評(píng)估系統(tǒng),其評(píng)估因素具有模糊性、灰色性及隨機(jī)性。本文在調(diào)研和總結(jié)前人的工作的基礎(chǔ)上,將云模型理論和灰色模糊綜合評(píng)判應(yīng)用到高壓斷路器的狀態(tài)評(píng)估中,提出了一種新的高壓斷路器狀態(tài)評(píng)估思路,綜合考慮了高壓斷路器狀態(tài)評(píng)估因素的模糊性、灰色性及隨機(jī)性,使評(píng)估結(jié)果更加有效可靠。首先,本文在基于高壓斷路器相關(guān)試驗(yàn)項(xiàng)目及運(yùn)行參數(shù)分析的基礎(chǔ)上,結(jié)合系統(tǒng)建模的相關(guān)原則,選取代表性指標(biāo),建立了多層次評(píng)估因素集；其次,綜合考慮運(yùn)算量及評(píng)估精度,合理地劃分運(yùn)行狀態(tài)等級(jí)；然后,采用改進(jìn)的層次分析法確定權(quán)重集的模部,并結(jié)合信息的充裕程度及專家的經(jīng)驗(yàn)確定權(quán)重集的灰部。權(quán)重集的模部表明同一層次各評(píng)估因素的相對(duì)重要性,灰部表示相應(yīng)模部確定的可信度。最后,結(jié)合定量分析與定性分析的方法,通過(guò)隸屬度來(lái)描述評(píng)估因素與各狀態(tài)等級(jí)之間的模糊隸屬關(guān)系,并引入點(diǎn)灰度描述相應(yīng)模糊關(guān)系的可信度,綜合建立灰色模糊判別矩陣。對(duì)于定量指標(biāo),其隸屬度的確定采用云模型,對(duì)于定性指標(biāo),其隸屬度確定采用模糊統(tǒng)計(jì)試驗(yàn)法。綜上,對(duì)高壓斷路器的運(yùn)行狀態(tài)進(jìn)行綜合評(píng)估,并引用內(nèi)積法與最大隸屬原則相結(jié)合的方法確定最終評(píng)估結(jié)果。實(shí)例驗(yàn)證表明,該評(píng)估模型可以客觀有效地評(píng)估高壓斷路器的運(yùn)行狀態(tài)。
[Abstract]:With the development of society and economy, in order to meet the needs of production and life, to further expand the scale of the grid, the safe and stable operation will face a more severe test, as an important part of power system, the operation state of power equipment will directly affect the operation of the power system. High voltage circuit breaker switch as the core equipment of power system protection and control, plays a dual role in power system, and its protective effect is mainly reflected in when faults occur in power line or equipment, with the relay protection device, rapid removal of power system fault, ensure the normal operation of the system in the non fault region, its role is mainly reflected in the normal control operation of the electric power system, part of the power equipment or line input or removal, in order to meet the operation demand of power system. Effect of high voltage circuit breaker in the operation process under electrical and thermal environment and other factors, the deterioration of the properties will be changed to some extent, causing a potential threat to the stable operation of the power system, if the deterioration to a certain extent the development of fault, the operation of the electric power system will produce the direct impact of light caused some users off, or damage the part of power equipment, heavy power system caused by chain reaction lead to the collapse of the system, namely the blackout area, will have a great impact on people's production and life. Therefore, accurate and effective state assessment for high-voltage circuit breakers is of great significance for further developing maintenance plan and ensuring safe and stable operation of power system. The state evaluation system of high voltage circuit breaker is a complex multi factor evaluation system, and its evaluation factors are fuzzy, grey and random. This paper summarizes previous work in research and on the cloud model theory and grey fuzzy comprehensive evaluation is applied to the condition assessment of high voltage circuit breaker, put forward a new kind of high voltage circuit breaker condition assessment ideas, considering the fuzziness and randomicity, grey evaluation factors for high voltage circuit breaker. The evaluation results more effective and reliable. First of all, based on the analysis of the relevant test items and operation parameters of high voltage circuit breaker based on the combination of related principles, system modeling, selecting representative indicators, the establishment of a multi-level evaluation factor set; secondly, considering the amount of calculation and the evaluation precision, reasonable division of running state level; then, the improved model the AHP to determine the weight set, grey part adequacy and combined with the experience of expert information to determine the weight set. The modulus of the weight set shows the relative importance of the evaluation factors at the same level, and the grey dept represents the reliability of the corresponding model department. Finally, combined with quantitative analysis and qualitative analysis, we describe the fuzzy membership relationship between evaluation factors and each state grade by membership degree, and introduce point gray to describe the credibility of corresponding fuzzy relations, and establish grey fuzzy discrimination matrix. For the quantitative index, the membership degree is determined by the cloud model, and the membership degree of the qualitative index is determined by the fuzzy statistical test method. In a comprehensive way, the operation state of the high voltage circuit breaker is evaluated comprehensively, and the method of inner product and the maximum membership principle are combined to determine the final evaluation results. The example verification shows that the evaluation model can objectively and effectively evaluate the running state of high voltage circuit breaker.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM561

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李劍虹;顧紹柱;盧志剛;韓彥玲;;配電網(wǎng)運(yùn)行經(jīng)濟(jì)性評(píng)價(jià)[J];華北電力技術(shù);2008年02期

2 劉海峰;閻春雨;陳志勇;劉偉;吳宏亮;;油浸式電流互感器缺陷分析與狀態(tài)診斷[J];河北電力技術(shù);2006年04期

3 周偉;曹銀貴;袁春;錢銘杰;喬陸印;;區(qū)域城鄉(xiāng)建設(shè)用地統(tǒng)籌效益灰色關(guān)聯(lián)度差異分析[J];華中師范大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年01期

4 高翔,劉韶俊;繼電保護(hù)狀態(tài)檢修及實(shí)施探討[J];繼電器;2005年20期

5 李金穎;李金超;牛東曉;;基于熵權(quán)法的供電商競(jìng)爭(zhēng)力組合評(píng)價(jià)[J];繼電器;2008年06期

6 盧志剛;韓彥玲;常磊;;基于組合權(quán)重的配電網(wǎng)運(yùn)行經(jīng)濟(jì)性評(píng)價(jià)[J];電力系統(tǒng)保護(hù)與控制;2008年18期

7 徐敏;劉井萍;左重華;彭瑜;杜偉;朱麗;;變電設(shè)備狀態(tài)檢修中試驗(yàn)數(shù)據(jù)的處理方法探討[J];電力系統(tǒng)保護(hù)與控制;2009年22期

8 李金超;牛東曉;李金穎;王智冬;;基于GRA與PCA的電網(wǎng)發(fā)展協(xié)調(diào)性評(píng)估研究[J];電力系統(tǒng)保護(hù)與控制;2010年18期

9 何勝平;吳雪峰;;變電站計(jì)算機(jī)監(jiān)控系統(tǒng)狀態(tài)檢修探討[J];機(jī)電信息;2010年36期

10 劉泊辰;;電氣二次設(shè)備的狀態(tài)檢修研究[J];機(jī)電信息;2012年06期

相關(guān)博士學(xué)位論文 前10條

1 靳濤;火電機(jī)組反向建模方法的研究[D];華北電力大學(xué)（北京）;2011年

2 王心;基于遺傳算法的產(chǎn)品選擇與生產(chǎn)計(jì)劃模糊優(yōu)化模型研究[D];天津大學(xué);2012年

3 劉加勛;超細(xì)煤粉物化特性及其對(duì)O_2/CO_2分級(jí)燃燒NO_x排放的影響[D];哈爾濱工業(yè)大學(xué);2011年

4 肖文;基于證據(jù)理論的多屬性決策關(guān)聯(lián)問(wèn)題研究[D];江西財(cái)經(jīng)大學(xué);2011年

5 王紅軍;面向大批量定制的產(chǎn)品族規(guī)劃關(guān)鍵技術(shù)研究[D];廣東工業(yè)大學(xué);2004年

6 李慶國(guó);水文水資源系統(tǒng)計(jì)算智能評(píng)價(jià)與預(yù)測(cè)方法研究[D];大連理工大學(xué);2004年

7 朱建軍;層次分析法的若干問(wèn)題研究及應(yīng)用[D];東北大學(xué);2005年

8 黃勇理;電站設(shè)備維修管理信息平臺(tái)建設(shè)的實(shí)踐研究[D];華中科技大學(xué);2005年

9 陳增明;群決策環(huán)境下證據(jù)理論決策方法研究與應(yīng)用[D];合肥工業(yè)大學(xué);2007年

10 黃炎焱;武器裝備作戰(zhàn)效能穩(wěn)健評(píng)估方法及其支撐技術(shù)研究[D];國(guó)防科學(xué)技術(shù)大學(xué);2006年

，

本文編號(hào)：1343501