a国产,中文字幕久久波多野结衣AV,欧美粗大猛烈老熟妇,女人av天堂

當前位置:主頁 > 科技論文 > 電力論文 >

變電站蓄電池在線監(jiān)測系統(tǒng)的應用與研究

發(fā)布時間:2018-07-25 13:46
【摘要】:變電站備用電源中廣泛使用的閥控式密封鉛酸蓄電池(Valve Regulated Lead Acid Battery以下簡稱蓄電池或VRLA)在性能方面被廣泛認可,其作用是在交流電源失電時為站內斷路器等重要設備提供分合閘操作的動力。蓄電池的可靠性關系到電網安全穩(wěn)定,但運行維護時有多種不利條件使其性能降低,壽命縮短。所以優(yōu)化當前的運維手段,準確把握蓄電池性能狀態(tài)是提高備用電源可靠性的關鍵。論文的背景為東莞電網站用蓄電池,使用分析原理、描述性研究的方法進行蓄電池內阻、剩余電量和老化系數(shù)在線監(jiān)測技術的研究,并設計適用于東莞電網的監(jiān)測系統(tǒng)。論文首先介紹蓄電池剩余電量Soc、老化系數(shù)Soh的定義,在目前核對性放電法測容量的基礎上使用安時定律,Peukert方程進行精確修正的方法。闡述了內阻與剩余電量、老化系數(shù)的相關性及內阻監(jiān)測優(yōu)點和局限性。重點研究兩種適用于變電站蓄電池的內阻測試技術:直流放電法、交流放電法。接下來論文研究蓄電池加速老化的內部機理與外部因素,找到東莞電網在運維中影響蓄電池壽命的兩個關鍵點:運行環(huán)境溫度、浮充電壓,并確定在線監(jiān)測系統(tǒng)應監(jiān)測的5個關鍵特征量。第四章描述了在線監(jiān)測系統(tǒng)對于5個特征量的測試模塊設計、基于網絡化TCP/IP協(xié)議的系統(tǒng)方案。最后介紹東莞電網服役運行的幾套在線監(jiān)測裝置的應用情況,著重介紹系統(tǒng)的實時監(jiān)控、歷史數(shù)據(jù)查詢、狀態(tài)評價、充放電監(jiān)測等幾個功能模塊的使用,實現(xiàn)蓄電池組的遠程集中監(jiān)控管理。論文根據(jù)現(xiàn)有運維手段落后的現(xiàn)狀,有針對性的將蓄電池參數(shù)測試系統(tǒng)與網絡化計算機監(jiān)控系統(tǒng)相結合,蓄電池在線監(jiān)測系統(tǒng)的研發(fā)大大降低了蓄電池的維護成本,提高蓄電池組性能和可靠性,效果顯著。
[Abstract]:The valve-controlled sealed lead-acid battery (Valve Regulated Lead Acid Battery or VRLA), which is widely used in the standby power supply of substation, has been widely recognized in terms of performance. Its function is to provide the power of opening and closing operation for the important equipment such as circuit breaker in the station when the AC power supply is off. The reliability of the battery relates to the safety and stability of the power network, but there are many disadvantages in operation and maintenance, which make its performance lower and its life shorter. So it is the key to improve the reliability of the backup power supply to optimize the current operation and maintenance means and accurately grasp the performance state of the battery. The background of this paper is the battery used in Dongguan electricity website. The analysis principle and descriptive research method are used to study the on-line monitoring technology of battery internal resistance, residual electricity quantity and aging coefficient, and the monitoring system suitable for Dongguan power network is designed. This paper first introduces the definition of battery residual power Socand aging coefficient Soh. On the basis of the current checking discharge method the method of accurate correction by using the amperage law and Peukert equation is used. The correlation between internal resistance and residual electricity quantity, aging coefficient, advantages and limitations of internal resistance monitoring are expounded. This paper focuses on two kinds of internal resistance test techniques for substation batteries: DC discharge method and AC discharge method. Then the paper studies the internal mechanism and external factors of accelerated aging of battery, and finds two key points that affect battery life in Dongguan power grid: operating environment temperature, floating charge voltage, and so on. Five key characteristic quantities should be monitored in the online monitoring system. The fourth chapter describes the design of the online monitoring system for the test module of five features, and the system scheme based on the network TCP/IP protocol. Finally, this paper introduces the application of several on-line monitoring devices used in Dongguan power grid, with emphasis on the use of several functional modules, such as real-time monitoring, historical data query, status evaluation, charge and discharge monitoring, etc. The remote centralized monitoring and management of battery group is realized. According to the present situation of backward operation and maintenance methods, the paper combines the battery parameter testing system with the networked computer monitoring system. The research and development of the battery online monitoring system greatly reduces the battery maintenance cost. The performance and reliability of battery group are improved and the effect is remarkable.
【學位授予單位】:華南理工大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TM912;TM63

【參考文獻】

相關期刊論文 前1條

1 趙佳玉,鮑慧;Modbus協(xié)議在蓄電池在線監(jiān)測中的應用[J];電力系統(tǒng)通信;2004年03期

,

本文編號:2144006

資料下載
論文發(fā)表

本文鏈接:http://www.wukwdryxk.cn/kejilunwen/dianlilw/2144006.html


Copyright(c)文論論文網All Rights Reserved | 網站地圖 |

版權申明:資料由用戶e9dfc***提供,本站僅收錄摘要或目錄,作者需要刪除請E-mail郵箱bigeng88@qq.com
无码国产精品一区二区高潮| 欧美日韩第一区| 欧美精品亚洲| 欧美第三页| 九色91蝌蚪| www.久久久.com| 联系附近成熟妇女| 欧美牲交a欧牲交aⅴ久久| 亚洲国产一区私人影院| 国产激情电影综合在线看| 人人添人人妻人人爽夜欢视AV | 久久久精品2019免费观看| 久久精品国产亚洲AV麻豆不卡| 公主岭市| 丰满少妇被猛烈进入毛片| 瑞昌市| 桓台县| 色婷婷综合久久久久中文字幕 | 久久亚洲精品无码GV| 日韩v亚洲v欧美v精品综合| 亚洲日韩国产成网在线观看| 六月婷婷久香在线视频| 欧洲熟妇色XXXX欧美老妇免费| 特级无码毛片免费视频尤物 | 91丨porny丨人妻露出| 四虎的全名叫什么| 久久撸| 久久精品三级| 中国少妇| 欧美一级黄片免费看| 先锋资源| 你懂得在线| 欧美久久综合| 日韩一区二区在线| 天天av| 97久久超碰精品视觉盛宴| 久久久久无码国产精品一区 | 日本最大色倩网站WWW| 亚洲日韩精品专区| 大香蕉综合| www.水蜜桃|