畢業(yè)設計論文 外文文獻翻譯 中英文對照 電氣工程及其自動化專業(yè) 電力系統(tǒng)通信蓄電池電源的檢測與維護解決方案

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1、英文原文： Power system communication power supply test and maintenance of the battery solution Abstract In a large number of data experiments and field application, and on the basis of the telecom room in the power the power of common common problems are analyzed and discussed, from, testing and

2、maintenance of real-time monitoring system safety, and put forward a set of complete solutions. Keywords: battery group; Power source; Detection; maintenance Introduction The electric power communication system center room equipped with a large amount of storage battery installation, on the commu

3、nications department.The operation of the electric power systems and support, spare play an important role. But in the maintenance process, or will often meet many problems, a detailed analysis of the below. 1. The battery power supply condition and analyzes the reasons We for large communication

4、machine. Room on the actual test, to the battery power supply system for the comprehensive study, found that many rooms, communications equipment have low load capacity battery, system reliability of the poor, in here are two groups of data about battery problems: A. battery service life for the de

5、sign of the general 8-1 O years, and statistical data show that the battery life ideal circumstances can achieve 4-6 years, generally can not meet the design demand, a large number of telecommunication room used less than 3 years (some two years) appear behind battery, part of the battery even scrap

6、ped; B. 2021 years urumqi power bureau telecommunication room data show that because the battery electric power communication power supply fault from accidents accounted for 35%, in recent years the data interface rapidly, the ratio has risen to 7%. Two sets of data to show that the problem is mor

7、e serious battery, the battery power supply of security and reliability have a serious threat, investigate its reason, mainly in the following nine aspects: 1.1 battery design process quality The battery design process exists plate technology design, material design, oxygen composite design, the p

8、ressure set A comprehensive plan defect, make a battery performance and life have been affected, main performance for battery failure, early leakage water loss, deformation cracks, etc. For simple ascending battery capacity, will the battery plate thin, and increase the number plate, makes the sam

9、e volume of the casing electrolyte reaction area greatly increased, capacity improve soon, but because thin plate, plate easily corrosion, softening battery, service life and therefore greatly shorten, easy to produce the early failure problems. Because of the low pressure setting, charge once to a

10、 certain pressure, control valves will be open Rev., gas is through the valve were leaked, cause the battery fluid loss (usually in a hole or a column valve will find a slightly damp near the liquid), this kind of battery also easy to produce the early failure, valve pressure design and material al

11、so has a direct relationship between the shell. Due to shell material, oxygen composite efficiency, valve design pressure, and other comprehensive technology lack, some batteries in the process of charging and discharging pool, easy to produce the shell deformation, beat even crack. 1.2 the influe

12、nce of the operation environment Running environment is the main room temperature on battery life influence is bigger, in 25 ℃ environment conditions , the environmental average temperature increase every 10 ℃, battery life is reduced by half. Northwest temperature changes greatly (a 30 ℃ a + 55 ~

13、 C), the substation telecommunication room less equipped with air conditioner, thermal performance is poor, temperature on battery life form directly influence. 1.3 operation mode and installation method Battery packs are generally more battery series into a group, two groups of parallel operation

14、. Site often Found in the internal battery, article connection (board) corner of battery performance generally have slightly worse, the main reason is the article connection too long (other connection is the article 5 a l0 times) and the materials of the contact resistance caused too large, lead to

15、 the connection of pressure drop article is too big, in the process of charging and discharging, will seriously affect peripheral battery charging and discharging effect, this kind of problem should be avoided. 1.4 the quality of power supply and load design problem The telecom room is located in

16、remote general transformer substation, often without power and the battery in frequent charged, and discharge status, the serious influence battery life. Computer room load relative to the battery capacity are slants small, such as the actual load for 30 A, communications equipment configuration of

17、battery capacity is commonly two groups of 300 Ah, the utility after interrupting, storage battery will to tiny current began to discharge, and small discharge current generation of sulfuric acid lead particles is easy to crystallization into pieces and E telecommunication room are generally rural p

18、ower supply, the quality of power supply is not stable, power over A long period of time, power outages frequent, sulfuric acid lead particles generated more easily irreversible sulfate. 1.5 professional testing methods and lack of equipment In the discharge detection, due to lack of monomer detec

19、tion equipment protection functions, therefore, in discharge only by the group when voltage observation, combined with manual measuring for inspection. Find a 1.8 v battery, immediately suspend test. This way low efficiency, safety all the sex differences, to the battery can't form an effective prot

20、ection. The battery characteristic parameters are mainly embodied in the voltage, resistance and capacity, the conventional detection method mainly measuring voltage, observe the shell signs, check the bolt tightness etc. So that only some representations to the parameter, and cannot master's impor

21、tant! Parameters such as resistance, capacity, etc. 1.6 charger, discharge management system is not perfect Recharging problems mainly involves to charge cycle, all are charging pressure, flow, all are charging filling time, All filling conversion control, float temperature compensation of detail

22、ed regulations. Some maintenance personnel to improve battery charging efficiency, improved charging voltage, and increase the charging current, leading to increased pressure, then combined low efficiency, the battery to dehydrate, are plate bar corrosion. With this several years of battery managem

23、ent know deeply, related problems reduce gradually, but for this problem or must cause enough attention to main pay attention to the following three points: one is the charge can't charge high pressure, even with are charging, voltage must also be restricted in 2.35 V scope (the new battery should b

24、e controlled in 2-3 V); 2 it is charging electric current cannot too much, it will speed up plates corrosion, cause plate softening, restrain oxygen composite efficiency; 3 it is charging process must be temperature compensation, compensation coefficients for a 3 mV / ℃ 2 mV / ~ C one. 2. Testing a

25、nd maintenance program 2.1 replacement has serious degradation the battery packs, strengthen the selection of the battery To find Bi can have depth degradation and a serious threat to the security of the battery power supply system Groups should be early change, and strengthen the battery technol

26、ogy selection. Process quality problem is the focus of the selection consider battery, the battery can be based on standard, battery makers to raise specific technical requirements, such as of the materials, valve pressure., plate thickness, quantity, voltage, resistance Sui, balanced equilibrium ch

27、aracteristics, oxygen composite efficiency, water loss rate, for through the acceptance test can detect project, must conduct test on these work can be further ensure the reliability of the battery for long-term use. Vrla batteries for production technology is strict, at present domestic battery li

28、fe Manufacturers in the more than 300, all sorts of technology of handicraft is various, the proposal is in before purchase, the battery rigorous screening, as far as possible choice complete production equipment, strong technical force, service facilities, perfect brand enterprise. , 2.2 strength

29、en early battery test, improve battery support ability of put into operation At the beginning of the storage battery check is a very important testing link, the battery technology standards In early to check the battery has a clear request, the engine room of the electric power communication batte

30、ry installation, run and maintenance and management is of important significance. For the specific requirements of the early battery check is: batteries before put into operation, the first first check sex discharge, its capacity should be not less than 95%, after the completion of the discharge to

31、the battery charge; Filled, a quiet place 1-2 h, make a second check sex discharge, after the completion of the discharge of battery charge; Filled, a quiet place 1 ~ 2 h, third check Bi discharge, its capacity should be not less than 100%, after the completion of the discharge to charge the battery

32、. 2.3 maintenance change ideas, strengthen the battery power supply of professional monitoring management Professional centralized monitoring system in the traditional monitoring system based on the function, increase the storage of electricity Pool monomer battery voltage, resistance and check t

33、est functions, the more the earth played a monitoring management functions, improve the maintenance efficiency. Implementing specialized monitoring, and other installation common monitoring or not pack monitoring communications equipment phase Than, the power supply rate reduced greatly, found tha

34、t the problem is timely, ensure the safety and reliability of the telecom room improved. 2.4 configuration diesel generators, strengthen intelligent control management, ensure that electric power communication security The battery electric power communication communications equipment is necessary

35、short time dc power, and diesel generator Machine is long time plays the role of communication standby power. Most of the communications are no spare room wood Oil generator, can increase the small diesel generator configuration. Considering the maintenance workload is big, shortage of personnel,

36、 vehicles and equipment and turnover nervous the actual problem, can not intelligent diesel generator increase intelligent control system, in the utility power lost, the utility is unstable, the phase lack, owe pressure, pressure and so on many kinds of conditions, can be automatically start diesel

37、generator, and to switch into power network operation. For the operation of the diesel generator maintenance and management, should also together with battery, into the professional centralized monitoring system, so that in time control system of power the battery operation parameters and working s

38、tate. 中文翻譯： 電力系統(tǒng)通信蓄電池電源的檢測與維護解決方案 摘要 在大量的數(shù)據(jù)實驗和現(xiàn)場應用的根底上，針對電力通信機房電源普遍存在的共同性問題進行了分析和探討，從檢測維護、實時監(jiān)控及系統(tǒng)平安等角度提出了一套完整方案。 關(guān)鍵詞：蓄電池組；電源；檢測；維護 引言 電力通信系統(tǒng)各中心機房安裝配備有大量的蓄電池，其對通信系 統(tǒng)的運行與電能支撐、備用起到重要的作用。但是在具體的維護過程 中，還是會經(jīng)常遇到許多問題，下面進行詳細的分析。 1.蓄電池電源狀況及其原因分析 我們對大量通信機．房進行了實際測試，對蓄電池電源系統(tǒng)進行了綜合性研究，

39、發(fā)現(xiàn)許多機房、通信機房都存在蓄電池負載能力低下、系統(tǒng)可靠性差的問題，在這里有兩組關(guān)于蓄電池問題的數(shù)據(jù)： a. 蓄電池的設計使用壽命一般為8—1O年，而統(tǒng)計數(shù)據(jù)說明，電池壽命理想情況下能到達4—6年，普遍都達不到設計要求，大量通信機房使用不到3年(有的2年)就出現(xiàn)電池落后，局部電池甚至報廢； b．2021年烏魯木齊電業(yè)局通信機房統(tǒng)計的數(shù)據(jù)說明，由于蓄電池故障引起的電力通信電源事故占35％，近年來這介數(shù)據(jù)快速攀升，這個比例已經(jīng)上升到7% 左右。 兩組數(shù)據(jù)說明，蓄電池的問題比擬嚴重，對蓄電池電源的平安和可靠產(chǎn)生嚴重威脅，究其原因，主要有以下9個方面： 1.1 電池設計工藝質(zhì)量 電池

40、設計工藝存在極板工藝設計、材料設計、氧復合設計、閥壓設 計等綜合性缺陷，使電池性能和壽命受到嚴重影響，主要表現(xiàn)為電池早期失效、漏液失水、變形裂縫等。 為單純提升電池容量，將電池極板變薄，并增加極板數(shù)量，使得同一容積的殼體內(nèi)電解液反響面積大幅度增加，容量提升很快，但由于極板變薄，電池極板容易腐蝕、軟化，使用壽命也因此大大縮短，容易產(chǎn)生早期失效問題。 由于閥壓設置偏低，充電時一旦到達一定壓力，控制閥便自動開 啟，氣體也就通過閥門外泄，造成電池失水(一般在閥門孔或者極柱附近會發(fā)現(xiàn)有輕微潮濕的液體)，這類電池也容易產(chǎn)生早期失效，閥壓設計與殼體材料也有著直接關(guān)系。 由于殼體材料、氧復合效率、閥

41、壓設計等綜合技術(shù)欠缺，有些電池池在充放電過程中，容易產(chǎn)生殼體變形、鼓包甚至裂縫。 1.2 運行環(huán)境的影響 運行環(huán)境主要是機房溫度對電池壽命影響較大，在25℃環(huán)境條件 下，環(huán)境平均溫度每增加10℃，電池壽命就將減少一半。西北地區(qū)溫度變化較大(一30℃一+55~C)，變電站通信機房較少配備空調(diào)，散熱性能較差，環(huán)境溫度對電池壽命形成直接影響。 1.3 運行方式及安裝方法 電池組一般都是多節(jié)電池串聯(lián)而成一組，兩組并聯(lián)運行?，F(xiàn)場經(jīng)常 發(fā)現(xiàn)在電池組內(nèi)部，連接條(板)拐彎處的電池性能一般都要稍差些，主要原因是連接條過長(是其他連接條的5一l0倍)以及由于材料引起的接觸電阻過大，導致該連接條上的壓

42、降太大，在充放電過程中，就會嚴重影響周邊電池充放電效果，這類問題應防止。 1.4 供電質(zhì)量及負載設計問題 變電站通信機房一般地處偏遠，經(jīng)常停電，電池處于頻繁充電、放電狀態(tài)，嚴重影響電池壽命。機房負載相對于電池容量都偏小，例如實際負載為30A，通信機房配置的電池容量一般為兩組300Ah，市電中斷后，蓄電池便會以極小電流開始放電，而小電流放電生成的硫酸鉛顆粒很容易結(jié)晶成塊加E通信機房一般都是農(nóng)網(wǎng)供電，供電質(zhì)量不穩(wěn)定，停電時間較長，停電頻繁，硫酸鉛顆粒更容易生成不可逆硫酸鹽。 1.5 專業(yè)檢測手段及設備缺乏 在現(xiàn)場進行放電檢測時，由于檢測設備缺乏單體保護設置功能，因此，在放電時只能通過整組電

43、壓觀察，結(jié)合手工測量進行檢查。發(fā)現(xiàn)有電池到達1．8v時，立即中止測試。這種方式效率低，平安全性差，對電池不能形成有效保護。 蓄電池的特征參數(shù)主要表達在電壓、內(nèi)阻和容量上，常規(guī)的檢測方法主要測量電壓、觀察外殼體征、檢查螺栓緊固性等，這樣只能掌握一些表象參數(shù)，而不能掌握重要特 !參數(shù)如內(nèi)阻、容量等。 1.6 充、放電管理制度不完善 充電問題主要涉及到均充電周期、均充電壓、均充電流、均充時間、 均浮充轉(zhuǎn)換控制、溫度補償?shù)认嚓P(guān)細那么。 一些維護人員為提高電池充電效率，大幅度提高充電電壓，加大充電電流，導致氣壓增加，再化合效率低，電池失水，正極板柵腐蝕。隨著這幾年對電池充電管理認識的深入，相關(guān)

44、問題逐漸減少，但對于這個問題還是必須引起足夠重視，主要注意以下三點：一是充電時不能以高壓充電，即便進行均充電，電壓也一定要限制在2．35V范圍以內(nèi)(新裝電池應控制在2-3v)；二是充電電流不能過大，這會加速極板腐蝕，引起極板軟化，抑制氧復合效率；三是充電過程必須進行溫度補償，補償系數(shù)為一3mV／℃ 一一2mV／~C。 2. 檢測與維護方案 2.1 更換已經(jīng)嚴重劣化的電池組，強化電池選型 對于發(fā)現(xiàn)陛能已經(jīng)深度劣化，并嚴重威脅到系統(tǒng)供電平安的電池 組應及早換，并強化電池工藝選型。工藝質(zhì)量問題是電池選型考慮的重點，可以基于蓄電池標準，向電池廠家提出明確的技術(shù)要求，如對殼體材料、閥壓．、極板厚

45、度、數(shù)量、電壓均衡特眭、內(nèi)阻均衡特性、氧復合效率、失水率等，對于通過驗收試驗可以檢測的工程，一定要實施檢測，進行這些工作可進一步確保電池長期使用的可靠性。 閥控式鉛酸蓄電池生產(chǎn)對于技術(shù)工藝要求嚴格，目前國內(nèi)電池生 產(chǎn)廠家有300多家，各種技術(shù)工藝品類繁多，建議在采購之前，對電池進行嚴格的篩選，盡可能選擇生產(chǎn)設備齊全、技術(shù)力量雄厚、效勞配套完善的品牌企業(yè)。 ， 2.2 加強電池初驗，提高電池組投運保障能力 蓄電池的初驗是一項非常重要的檢測環(huán)節(jié)，有關(guān)蓄電池技術(shù)標準 中對電池初驗有明確要求，對電力通信機房蓄電池的安裝、運行、維護和管理都具有重要的指導意義。對于電池初驗的具體要求是：電池在投

46、運前，首先進行第一次核對性放電，其容量應該不低于95％，放電完畢后對電池進行充電；充滿后，靜置1—2h，進行第二次核對性放電，放電完畢后對電池進行充電；充滿后，靜置1～2h，進行第三次核對陛放電，其容量應不低于100％，放電完畢后對電池進行充電。 2.3 轉(zhuǎn)變維護理念，加強蓄電池電源的專業(yè)化監(jiān)控管理 專業(yè)化集中監(jiān)控系統(tǒng)在傳統(tǒng)監(jiān)控系統(tǒng)功能的根底上，增加了蓄電 池單體電壓、電池內(nèi)阻、核對試驗功能，更大地發(fā)揮了監(jiān)控管理的職能，提高了維護效率。 實施專業(yè)化監(jiān)控，與其他安裝普通監(jiān)控或不裝監(jiān)控的通信機房相 比，電源事故率大大降低，發(fā)現(xiàn)問題都比擬及時，確保通信機房平安性和可靠性的提高。 2.4 配置柴油發(fā)電機、增強智能控制管理，確保電力通信平安 蓄電池是電力通信通信機房必備的短時間直流電源，而柴油發(fā)電 機那么起著長時間交流備用電源的作用。大多數(shù)通信機房都沒有備用柴 油發(fā)電機，可增加小型柴油發(fā)電機配置。 考慮到維護工作量大，人員緊缺、往返周轉(zhuǎn)車輛及設備緊張的實際問題，可以為非智能型柴油發(fā)電機增加智能控制系統(tǒng)，在市電掉電、市電不穩(wěn)、缺相、欠壓、過壓等多種條件下，均可以自動啟動柴油發(fā)電機，并自動切換并入電網(wǎng)運行。 對于柴油發(fā)電機的運行維護和管理，也應同蓄電池一起，納入專業(yè)化集中監(jiān)控系統(tǒng)中來，以便及時掌握系統(tǒng)蓄電池電源的各項運行參數(shù)和工作狀態(tài)