【摘要】：在電網(wǎng)運行中,變電所是重要的組成部分,可以起到保護電網(wǎng)系統(tǒng)的安全、可靠、穩(wěn)定運行。我國的電網(wǎng)運行已經(jīng)逐漸步入自動化,電力系統(tǒng)也向著變電所無人值守的趨勢發(fā)展,而各大電力部門也在不斷進行“變電所無人值守”的實踐中,能夠使用“四遙”(遙測、遙信、遙控、遙調(diào))來對變電所進行監(jiān)控,但是當面對需要人為處理的事故或災難,例如偷盜、火災、刀閘情況、變壓器漏油等,利用“四遙”是不能監(jiān)控到的,因此,“第五遙”的出現(xiàn)(即遙視)及應用顯得尤為重要,“五遙”能夠捕捉“四遙”無法監(jiān)控的畫面,對于可能會發(fā)生的事故起到防患未然的作用。如果能將“五遙”應用在識別變壓器出現(xiàn)的異常情況,將大大節(jié)省人力資源,提高預處理的效率;在變壓器的異常情況中,大多數(shù)為變壓器滲漏油異常。為了能夠更加明確的識別出變壓器滲漏油的根本原因,我們需要對變壓器的滲漏油進行滲漏機理及預防方法的研究,從不同方面(包括定性和定量)分析不同因素對變壓器滲漏的影響,并以此為基礎,提出一個針對35kV變壓器運行管理的技術方案和組織措施,能夠提前對變壓器的滲漏油做好預防,通過減少滲漏油的發(fā)生概率,并降低運行故障的風險;針對“遙視”監(jiān)控到的變壓器圖像異常和相關技術研究,提出一種基于顏色直方圖方法的變壓器滲漏油異常檢測方法。通過分析制造變壓器的材料特性、變壓器的滲漏油條件、環(huán)境影響這三個因素之間的相互作用,掌握、分析變壓器滲漏油的根本原因和解決方法。
[Abstract]:Substation is an important part of power grid operation, which can protect the security, reliability and stability of power system. The power grid operation in our country has gradually stepped into automation, and the power system is also developing towards the unattended substation, and the major power departments are constantly carrying out the practice of "unattended substation", and can use "four remote" (telemetry). Remote communication, remote control, remote control) to monitor the substation, but in the face of accidents or disasters that need to be handled manually, such as theft, fire, knife brakes, transformer oil leakage, etc., it is impossible to monitor the use of "four remotes", so, The appearance and application of "the fifth remote" (remote viewing) and its application are particularly important. "five remote" can capture the picture of "four remote" which can not be monitored, and plays a preventive role in case of possible accidents. If "five remote" can be used to identify the abnormal condition of transformer, it will greatly save manpower resources and improve the efficiency of pretreatment. In the abnormal condition of transformer, most of them are abnormal oil leakage of transformer. In order to more clearly identify the fundamental causes of transformer leakage oil, we need to study the leakage mechanism and prevention methods of transformer leakage oil. This paper analyzes the influence of different factors on transformer leakage from different aspects (including qualitative and quantitative aspects) and puts forward a technical scheme and organization measures for the operation and management of 35kV transformer. It can prevent the leakage oil of transformer in advance, reduce the probability of leakage oil and reduce the risk of running fault. A method for detecting transformer leakage anomaly based on color histogram is proposed. By analyzing the material characteristics of the transformer, the oil leakage condition of the transformer and the interaction between the three factors, the fundamental cause and the solution of the leakage oil of the transformer are analyzed.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM41
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本文編號：2278243