客運(yùn)專線設(shè)計(jì)方案：客運(yùn)專線牽引供電系統(tǒng)可靠性分析與評(píng)估

1、客運(yùn)專線論文：客運(yùn)專線牽引供電系統(tǒng)可靠性分析與評(píng)估【中文摘要】新形勢下 , 我國高速客運(yùn)專線正處于日新月異的跨越式發(fā)展階段 , 到 2020 年將達(dá)到 1.6 萬公里。牽引供電系統(tǒng) (TPS)作為高速客運(yùn)專線的重要子系統(tǒng) , 為動(dòng)車組的持續(xù)運(yùn)行提供動(dòng)力來源 , 所以牽引供電系統(tǒng)的可靠直接關(guān)系到鐵路運(yùn)輸?shù)姆€(wěn)定與安全。牽引供電系統(tǒng)可靠性研究能夠?yàn)殍F路運(yùn)營決策、維修計(jì)劃的制定提供重要的理論依據(jù) , 進(jìn)而能夠?yàn)殍F路的安全運(yùn)營、穩(wěn)定運(yùn)輸保駕護(hù)航。鑒于牽引供電系統(tǒng)可靠性研究的重要意義 , 重點(diǎn)圍繞牽引供電系統(tǒng)的結(jié)構(gòu)組成、維修因素、繼電保護(hù)及軟件開發(fā)四個(gè)主題展開關(guān)聯(lián)研究 , 致力于發(fā)現(xiàn)維修和保護(hù)與牽引供電系

2、統(tǒng)可靠性的定量關(guān)系 , 以提高牽引供電系統(tǒng)的可靠性 , 更好地為客運(yùn)專線服務(wù)。系統(tǒng)闡述了牽引供電系統(tǒng)可靠性的研究意義、研究現(xiàn)狀 , 從現(xiàn)有文獻(xiàn)中尋找了相關(guān)研究的重要切入點(diǎn)：考慮維修和考慮保護(hù)的牽引供電系統(tǒng)可靠性研究。針對牽引供電系統(tǒng)的結(jié)構(gòu)特點(diǎn) , 將 3F 技術(shù) ( 即綜合故障模式及后果分析(FMEA)、故障樹分析 (FTA) 和故障報(bào)告、分析及糾正措施系統(tǒng)(FRACAS)等三項(xiàng)技術(shù) ) 引入到牽引供電系統(tǒng)的可靠性研究中 , 分別進(jìn)行了 TPSFMEA、TPSFTA、TPSFRACAS等三項(xiàng)工作 , 論述了牽引供電系統(tǒng) 3F(3TPSF)技術(shù)的綜合應(yīng)用。 3TPSF技術(shù)是一個(gè)相互作用的有機(jī)組合

3、, 可以理順故障事件的前因后果 , 有效地積累系統(tǒng)的可靠性數(shù)據(jù) , 防止類似事件的再現(xiàn) , 不失為一種研究牽引供電系統(tǒng)可靠性的實(shí)用方法。維修是影響牽引供電系統(tǒng)可靠性的重要因素之一 , 為說明維修對牽引供電系統(tǒng)可靠性的定量影響 , 選定以牽引變電所電氣主接線為研究對象。首先 , 針對基本串并聯(lián)系統(tǒng)的可靠性 , 詳細(xì)闡述了其理論分析過程及特征結(jié)果；然后 , 在基本系統(tǒng)分析的基礎(chǔ)上 , 建立了牽引變電所電氣主接線的不可維修和可維修可靠性模型 , 給出了兩種模型的平均無故障工作時(shí)間 (MTTF)和平均首次故障前工作時(shí)間 (MTTFF)的計(jì)算策略；最后 , 通過對比分析不可維修與可維修兩種模型的 MTT

4、F和MTTFF的計(jì)算結(jié)果以及三種電氣主接線的計(jì)算結(jié)果 , 得出如下結(jié)論：可維修模型的 MTTFF值始終大于可維修模型的 MTTF值, 可維修模型的 MTTFF值始終大于不可維修模型的 MTTFF值, 可維修模型的 MTTF 值與不可維修模型的 MTTF值的比較則取決于部件維修率的大小。這些結(jié)論對牽引供電系統(tǒng)的可靠性規(guī)劃、設(shè)計(jì)以及維修策略和標(biāo)準(zhǔn)的制定都有指導(dǎo)意義。繼電保護(hù)系統(tǒng)作為牽引供電系統(tǒng)安全運(yùn)行的第一道防線 , 而且如今高速客運(yùn)專線的繼電保護(hù)都采用多功能數(shù)字保護(hù)裝置。為說明繼電保護(hù)系統(tǒng)與牽引供電系統(tǒng)的內(nèi)在聯(lián)系 , 以數(shù)字保護(hù)的基本功能為出發(fā)點(diǎn) , 考慮了保護(hù)系統(tǒng)故障的四種起因：硬件、軟件、輔

5、助設(shè)備和人為失誤 , 在此基礎(chǔ)上建立了保護(hù)系統(tǒng)牽引供電系統(tǒng)部件可靠性模型 , 另外 , 還考慮了對系統(tǒng)起重要影響的檢測和維修過程中的人為失誤、定期檢修效率、自檢的不同可靠性水平、近后備保護(hù)誤動(dòng)和斷路器失效 , 并區(qū)分了定檢和自檢分別在檢測拒動(dòng)和誤動(dòng)兩種故障模式時(shí)的不同。通過算例定量分析了硬、軟件故障如何影響系統(tǒng)可靠性 , 定檢周期、自檢周期對系統(tǒng)可靠性的影響 , 計(jì)算了保持系統(tǒng)最大正常工作概率的條件下的最佳定檢周期和自檢周期。所建立的模型能驗(yàn)證多種問題與系統(tǒng)可靠性的關(guān)系, 滿足了多種因素的分析需要。為了更方便、更快捷地進(jìn)行牽引供電系統(tǒng)的可靠性分析, 以現(xiàn)有文獻(xiàn)應(yīng)用成熟的 FMEA和 FTA為理

6、論依據(jù) , 研制了一套“客運(yùn)專線牽引供電系統(tǒng)可靠性評(píng)估和數(shù)據(jù)管理平臺(tái)” , 可以實(shí)現(xiàn)牽引供電系統(tǒng)的 FTA的建樹分析和 FMEA的建表分析以及對相關(guān)設(shè)備的可靠性數(shù)據(jù)進(jìn)行有效的管理?！居⑽恼?Under the new situation, high-speed dedicated passenger line (DPL) is being quickly changing during a leap in the development stage, which will reach 16,000 km until 2012. Traction power supply system (T

7、PS) is part and parcel of DPL, which can provide electric energy for motor train-sets. So, the reliability of traction powersupply system can guarantee DPL s safe operation and steady transportation and provide DPL with accurate theoretical foundation that is necessary to make operating decisions an

8、d maintenance strategies, which is directly related to railway transportation dependability and safety. Due to the importance of traction power supply system reliability research, this paper concentrates on structureand elements, maintenance,relay and software development of TPS, in order to find th

9、e quantitative relationship between maintenance,relay and TPS, to improve TPS reliability, toserve DPL better.Significance and situation of TPS reliability research has been stated. From existingreferences two important points of penetrationTPSreliability analysis considering maintenance and relay.I

10、n allusion to structural features of TPS,3F(namely synthesis of Failure Modes and Effects Ananlysis(FMEA),Fault Tree Ananlysis(FTA),Failure Reporting, Analysis & Corrective Action System (FRACAS) )technique has been introduced for analyzing TPS reliability, FMEA tables, FT models,FRACAS of TPS h

11、ave been created,synthesis application of 3TPSF has been conducted.3TPSF technique is an organic combination that have interaction with each other, which can make cause and effect of failure events clear, accumulate system reliability data, and effectively prevent similar eventsfrom reappearing. Thu

12、s, it is a practical way to TPS reliability research.Maintenance is one of important factors which can affect TPS reliability. To illustrate the quantitative influence that maintenance produces on TPS reliability, traction substation main connection was chosen as object of study. Firstly, theoretica

13、l analysis process,features and results of basic series and parallel reliability system are stated in detail. And then, based onanalysis of the basic series and parallel reliability system, irreparable reliability models and reparable reliability models of traction substation main connection have be

14、en established, the ways of how to get mean time to failure (MTTF) and mean time to first failure (MTTFF) of two models are achieved. Subsequently, by comparative analysis of the value of MTTF and MTTFF of traction substation main connection reparable and irreparable models, and comparative analysis

15、 of the value of MTTF and MTTFF among three kinds of traction substation main connection reparable and irreparable models.Lastly,the followingconclusions are found:the values of repairable modelsMTTFF is undoubtedly larger than its MTTF,the values of reparable model s MTTFF is undoubtedly larger tha

16、n that of irreparable model s MTTFF, the comparison of the values ofreparable models MTTF and irreparable models MTTFdepends on the value of component maintenance rate, thevalue main connection reparable model MTTF and MTTFF modelis not surely greater than that main connection reparablemodel. These

17、conclusions gave useful guidances for TPSreliability planning,design and establishing of maintenancestrategy and standard.Protective relay is the first defenseline of TPS safe and dependable operation. However, high-speed DPL protective relay has adopted digital technologies with multifunction. To i

18、llustrate the influence thatdigital protection produces on TPS reliability, based on function of digital protection, a new reliability model is proposed that associates protection system failures to four main causes:1) relay hardware,2) relay software,3) ancillary equipment, and 4) human error. In a

19、ddition, this model can take other aspects of the protection system into consideration, such as human error during tests and repair actions, routine inspections effectiveness, level of reliance on self-checking, local backup misoperation, and stuck breakers. These considerations have a significant i

20、mpact on the reliability of protection systems and some of that have been neglected in the existing research works. Various capabilities of the model such as how relay hardware and software failures, self-checking and routine inspections interval affect reliability of TPS components and protective s

21、ystem, how to get the best self-checking and routine inspections interval are demonstrated in the case study section.This model can be used to check relationship between lots of questions and systemreliabilityTo analyzing TPS reliability more convenientlyand quickly, based on FMEA and FTA that have

22、been appliedpopularly in existing research works,“TPL TPS reliabilityevaluation and data management software“ has beendeveloped, which can help FTA modeling, FMEA table creating and effective relevant reliability data managing.【關(guān)鍵詞】客運(yùn)專線牽引供電系統(tǒng)可靠性分析牽引供電系統(tǒng)3F 技術(shù) 平均無故障工作時(shí)間平均首次故障前工作時(shí)間繼電保護(hù)【英文關(guān)鍵詞】 dedicated

23、 passenger line traction power supply system reliability analysis 3TPSF technique mean time to failure mean time to first failure protective relay【目錄】客運(yùn)專線牽引供電系統(tǒng)可靠性分析與評(píng)估摘要8Abstract8-9第 1 章 緒論 12-181.1 課題的提出6-121.2課題的研究意義12-131.3 課題的研究現(xiàn)狀13-可靠性國內(nèi)外研究現(xiàn)狀13-14電力系統(tǒng)可靠性國內(nèi)外研究現(xiàn)狀14牽引供電系統(tǒng)可靠性國內(nèi)外研究現(xiàn)狀14-16繼電保護(hù)系統(tǒng)可靠性國

24、內(nèi)外研究現(xiàn)狀161.4論文的研究內(nèi)容16-18第2章基于3F 技術(shù)的牽引供電系統(tǒng)可靠性分析18-322.1引言182.2 3F技術(shù)概述182.3 牽引供電系統(tǒng)結(jié)構(gòu)組成18-20牽引變電所結(jié)構(gòu)組成19-20接觸網(wǎng)結(jié)構(gòu)組成202.4 牽引供電系統(tǒng)FMEA20-22牽引變電所FMEA20-22接觸網(wǎng)FMEA222.5牽引供電系統(tǒng)FTA 22-28牽引變電所FTA 22-26接觸網(wǎng)FTA 26-282.6 牽引供電系統(tǒng)FRACAS28-292.7牽引供電系統(tǒng)3F 技術(shù)的綜合運(yùn)用29-312.8 小結(jié)31-32第 3 章考慮維修因素的牽引供電系統(tǒng)可靠性分析32-493.1引言 323.2 兩組件基本系統(tǒng)可靠性理論分析32-37可修系統(tǒng)32-35不可修系統(tǒng)35-36可修系統(tǒng)和不可