本文選題：電能質(zhì)量　切入點(diǎn)：質(zhì)量監(jiān)測　出處：《華北電力大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：電能質(zhì)量的好壞對(duì)社會(huì)經(jīng)濟(jì)的發(fā)展和用戶生活有巨大影響。隨著工業(yè)生產(chǎn)前進(jìn)的步伐,多種具有沖擊性、波動(dòng)性和非線性的負(fù)荷,使得電能質(zhì)量出現(xiàn)各種問題:造成一些用電設(shè)備及核心設(shè)備損壞,加大電能的損耗程度,甚至出現(xiàn)相關(guān)測量儀表因受到干擾信號(hào)的作用而加大操作的失誤率。電能質(zhì)量不高影響企業(yè)正常的生產(chǎn)作業(yè)以及居民用電,造成用電設(shè)備的不正常運(yùn)轉(zhuǎn),影響整個(gè)社會(huì)及國民經(jīng)濟(jì)的發(fā)展。因此,基于電力系統(tǒng)中現(xiàn)有相關(guān)供電場所中在線監(jiān)測系統(tǒng)的電能質(zhì)量研究和分析,并構(gòu)建其完善的評(píng)估體系,準(zhǔn)確客觀的對(duì)電能質(zhì)量進(jìn)行全方位的評(píng)估,具有重要的意義。本文在介紹電能質(zhì)量的概念和各項(xiàng)指標(biāo)以及分析研究國內(nèi)標(biāo)準(zhǔn)、IEC標(biāo)準(zhǔn)及國外工業(yè)發(fā)達(dá)國家電能質(zhì)量標(biāo)準(zhǔn)的基礎(chǔ)上,對(duì)現(xiàn)有通用的電能質(zhì)量綜合評(píng)估方法進(jìn)行比較分析,結(jié)合實(shí)際情況,找到適用于變電站電能質(zhì)量的模糊綜合評(píng)估方法。然后對(duì)和平220kV變電站的電能質(zhì)量監(jiān)測與評(píng)估系統(tǒng)的需求進(jìn)行歸納和分析,建立電能質(zhì)量監(jiān)測與評(píng)估系統(tǒng)模型以及介紹系統(tǒng)硬件的基本組成及各部分的功能。根據(jù)軟件系統(tǒng)開發(fā)中所涉及到主要技術(shù),詳細(xì)說明本系統(tǒng)軟件的結(jié)構(gòu)與功能設(shè)計(jì)。通過對(duì)電能質(zhì)量檢測評(píng)估系統(tǒng)的軟硬件系統(tǒng)設(shè)計(jì),系統(tǒng)的界面得到實(shí)現(xiàn)并獲得相應(yīng)的實(shí)驗(yàn)數(shù)據(jù);對(duì)電能質(zhì)量各指標(biāo)進(jìn)行權(quán)重分配,通過模糊綜合評(píng)估方法對(duì)和平220kV變電站的電能質(zhì)量進(jìn)行綜合評(píng)估,和其它四種評(píng)估方法結(jié)果進(jìn)行比較,得出模糊綜合評(píng)估法的評(píng)估結(jié)果有著很大優(yōu)勢。
[Abstract]:The quality of power has a great impact on the development of social economy and the life of users. With the advance of industrial production, there are many kinds of loads with impact, volatility and nonlinear. Causes the power quality to appear various problems: causes some electric power equipment and the core equipment damage, increases the electric energy loss degree, It even appears that the related measuring instruments increase the operation error rate because of the interference signal. The low power quality affects the normal operation of enterprises and the residents' electricity consumption, resulting in the abnormal operation of the electric equipment. Therefore, based on the research and analysis of the power quality of the online monitoring system in the existing relevant power supply sites in power system, a perfect evaluation system is constructed. It is of great significance to evaluate power quality accurately and objectively. This paper introduces the concept and indexes of power quality, and analyzes and studies the domestic standard IEC standard and the power quality standard of developed countries abroad. By comparing and analyzing the existing methods of power quality comprehensive evaluation, combining with the actual situation, The fuzzy comprehensive evaluation method suitable for substation power quality is found, and then the requirement of power quality monitoring and evaluation system for peaceful 220 kV substation is summarized and analyzed. Establish the model of power quality monitoring and evaluation system and introduce the basic composition of the system hardware and the functions of each part. According to the main technology involved in the development of software system, Through the software and hardware system design of power quality detection and evaluation system, the interface of the system is realized and the corresponding experimental data are obtained. The power quality of Heping 220 kV substation is evaluated by fuzzy comprehensive evaluation method, and compared with the results of other four evaluation methods, it is concluded that the fuzzy comprehensive evaluation method has great advantages.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM711;TM63

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