【摘要】：隨著GIS的廣泛應(yīng)用，快速暫態(tài)過(guò)電壓(VFTO)的危害引起了普遍的重視。針對(duì)該問(wèn)題，國(guó)內(nèi)外對(duì)VFTO的特性、影響及防護(hù)措施已進(jìn)行了研究，取得了一些重要的成果。但是，隨著GIS制造技術(shù)的不斷發(fā)展，其內(nèi)部結(jié)構(gòu)組成和元器件工藝均有了重大改進(jìn)，不斷出現(xiàn)了小型化和緊湊化的GIS設(shè)備，導(dǎo)致GIS設(shè)備的VFTO特性也隨著發(fā)生了很大改變。鑒于現(xiàn)場(chǎng)測(cè)試條件的限制，開展GIS變電站暫態(tài)過(guò)電壓的影響研究具有非常重要的現(xiàn)實(shí)意義。 本文首先總結(jié)相關(guān)技術(shù)的研究成果，分析了VFTO產(chǎn)生的機(jī)理和造成的影響。以惠州抽水蓄能電站GIS為研究對(duì)象，通過(guò)分析惠州抽水蓄能電站GIS的結(jié)構(gòu)特點(diǎn)和設(shè)備特性，建立了仿真模型。利用電磁暫態(tài)計(jì)算程序（EMTPE）對(duì)所有GIS隔離開關(guān)共256種運(yùn)行方式均進(jìn)行了VFTO仿真研究，通過(guò)仿真計(jì)算結(jié)果分析，確定了惠州抽水蓄能電站GIS的VFTO水平，為電站運(yùn)行方式的調(diào)整提供了技術(shù)支撐。 本文的研究方法，解決了電站現(xiàn)場(chǎng)測(cè)試條件的限制，研究結(jié)果對(duì)惠州抽水蓄能電站GIS的快速暫態(tài)過(guò)電壓影響問(wèn)題的解決有較好的參考價(jià)值和指導(dǎo)意義。
[Abstract]:With the wide application of GIS, the harm of fast transient overvoltage (VFTO) has been paid more and more attention. To solve this problem, the characteristics, effects and protective measures of VFTO have been studied at home and abroad, and some important results have been obtained. However, with the continuous development of GIS manufacturing technology, its internal structure and component technology have been greatly improved, and miniaturization and compact GIS equipment have emerged, which has led to a great change in VFTO characteristics of GIS equipment. In view of the limitation of field test conditions, it is of great practical significance to study the influence of transient overvoltage in GIS substation. Firstly, this paper summarizes the research results of related technologies, and analyzes the mechanism and influence of VFTO. Taking Huizhou pumped Storage Power Station (GIS) as the research object, the simulation model of Huizhou pumped Storage Power Station (GIS) is established by analyzing the structure and equipment characteristics of GIS. By using electromagnetic transient calculation program (EMTPE), the VFTO simulation of all 256 operation modes of GIS disconnector is carried out. The VFTO level of GIS in Huizhou pumped Storage Power Station is determined by the analysis of the simulation results. It provides technical support for the adjustment of power station operation mode. The research method of this paper has solved the limitation of the field test condition of the power station, the research result has the good reference value and the instruction significance to solve the fast transient overvoltage influence problem of the Huizhou pumped storage power station GIS.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV743;TV734

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