本文選題：智能變電站　切入點(diǎn)：繼電保護(hù)系統(tǒng)　出處：《華北電力大學(xué)(北京)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：繼電保護(hù)系統(tǒng)是電力系統(tǒng)構(gòu)成的重要部分之一,它的主要作用是為了在電網(wǎng)中由于各種意外因素產(chǎn)生事故時(shí),能夠及時(shí)發(fā)出指令,讓斷路器執(zhí)行開(kāi)合閘的操作,可以使得電網(wǎng)的安全運(yùn)行得到保障。傳統(tǒng)變電站與智能變電站在原件和結(jié)構(gòu)有很大的不同。通過(guò)對(duì)智能變電站中的繼電保護(hù)系統(tǒng)進(jìn)行測(cè)試并得到系統(tǒng)運(yùn)行可靠性的評(píng)估報(bào)告,可以發(fā)現(xiàn)并改進(jìn)繼電保護(hù)系統(tǒng)中所暴露出來(lái)的需要改進(jìn)的地方,讓繼電保護(hù)系統(tǒng)能夠更為有效地工作,使得整個(gè)電網(wǎng)能夠處在更加安全經(jīng)濟(jì)的工作狀態(tài)。在對(duì)智能變電站繼電保護(hù)系統(tǒng)配置及構(gòu)成的研究現(xiàn)狀總結(jié)分析的基礎(chǔ)上,本文引入GO法更加深入地對(duì)智能變電站繼電保護(hù)系統(tǒng)的運(yùn)行可靠性進(jìn)行計(jì)算分析。論文主要包括以下內(nèi)容：①分析了智能變電站中的保護(hù)系統(tǒng)配置及網(wǎng)絡(luò)構(gòu)造,介紹了智能變電站繼電保護(hù)系統(tǒng)的主要組成,并與傳統(tǒng)變電站的保護(hù)系統(tǒng)進(jìn)行了對(duì)比,著重對(duì)兩種變電站的差異進(jìn)行了介紹。②介紹了GO法的基本理念及和工作原理,重點(diǎn)解釋了存在共有信號(hào)的概率算法,提出GO法定量計(jì)算公式,在此基礎(chǔ)上建立了基于改進(jìn)GO法的用來(lái)分析繼電保護(hù)系統(tǒng)運(yùn)行是否運(yùn)行可靠性以及哪種系統(tǒng)更加優(yōu)異的研究模型。③本文是以220 kV拱東智能變電站保護(hù)的構(gòu)建參考,采用GO法定量計(jì)算的方法,分別對(duì)主變、線路以及母線保護(hù)三種保護(hù)系統(tǒng)進(jìn)行了計(jì)算分析,并得出其運(yùn)行可靠性,通過(guò)對(duì)計(jì)算結(jié)果的分析可以得知：線路保護(hù)的運(yùn)行可靠性比于其他保護(hù)更高一點(diǎn),母線保護(hù)運(yùn)行可靠性稍微低一點(diǎn),主要是因?yàn)樗婕暗碾娖髟噙\(yùn)行可靠性,最后根據(jù)計(jì)算所得到的運(yùn)行可靠性分析報(bào)告提出具體措施,用以提高繼電保護(hù)系統(tǒng)的運(yùn)行可靠性。
[Abstract]:The relay protection system is one of the important parts of the power system. Its main function is to make the circuit breaker carry out the operation of opening and closing in time when accidents occur due to various unexpected factors in the power network. The traditional substation is different from the intelligent substation in the original part and the structure. By testing the relay protection system in the intelligent substation and obtaining the evaluation report of the system operation reliability, You can identify and improve what needs to be improved in the relay protection system, so that the relay protection system can work more effectively. So that the whole power network can be in a more safe and economical working state. On the basis of the summary and analysis of the configuration and composition of relay protection system in intelligent substation, In this paper, go method is introduced to calculate and analyze the reliability of relay protection system in intelligent substation. The main contents of this paper are as follows: 1. The configuration of protection system and network structure in intelligent substation are analyzed as follows: 1. This paper introduces the main composition of intelligent substation relay protection system, and compares it with the traditional substation protection system. The difference between the two substations is emphatically introduced. 2. The basic concept and working principle of go method are introduced. In this paper, the probabilistic algorithm for the existence of common signals is explained, and the calculation formula of go method is put forward. On this basis, a research model based on improved go method is established to analyze whether the relay protection system is running reliably and which system is more excellent. 3 this paper is a reference for the construction of 220 kV Gongdong intelligent substation protection. By using go method of calculation, the main transformer, circuit and busbar protection system are calculated and analyzed, and the reliability of the system is obtained. Through the analysis of the calculation results, we can know that the operational reliability of line protection is higher than that of other protection, and the operation reliability of bus protection is slightly lower, mainly because it involves too many electrical components. Finally, according to the operational reliability analysis report obtained from the calculation, concrete measures are put forward to improve the operational reliability of the relay protection system.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TM63;TM76;TM77

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本文編號(hào)：1594550