發(fā)布時(shí)間：2018-10-23 12:56

【摘要】：快速識(shí)別電力系統(tǒng)中的故障元件和分析引起故障的原因,有助于盡快恢復(fù)系統(tǒng)的正常運(yùn)行和減少停電損失。氣象等要素是導(dǎo)致電力系統(tǒng)故障的主要原因之一,但如何在故障診斷中適當(dāng)計(jì)及這些要素的影響是一個(gè)有待深入研究的問題。在此背景下,比較系統(tǒng)地考慮了氣象等要素對(duì)電力系統(tǒng)故障的影響,在現(xiàn)有故障診斷方法的基礎(chǔ)上利用故障發(fā)生時(shí)刻的氣象等外部要素情況分析導(dǎo)致故障的原因。首先,根據(jù)發(fā)生故障前后的電力系統(tǒng)拓?fù)浣Y(jié)構(gòu),識(shí)別停電區(qū)域,確定候選故障元件;在此基礎(chǔ)上,以繼電保護(hù)和斷路器狀態(tài)為信息源,構(gòu)建了電力系統(tǒng)故障診斷的一種簡(jiǎn)化模型,從候選的故障元件中確定故障元件。之后,以從污穢監(jiān)測(cè)系統(tǒng)、雷電監(jiān)測(cè)系統(tǒng)、氣象預(yù)警系統(tǒng)等外部環(huán)境監(jiān)測(cè)設(shè)備獲得的信息與數(shù)據(jù)以及所確定的故障元件為故障影響要素分析的信息源,分析導(dǎo)致故障的外部影響因素,以幫助系統(tǒng)運(yùn)行人員快速定位和排除故障,盡快恢復(fù)系統(tǒng)正常運(yùn)行。
[Abstract]:Rapid identification of fault elements in power system and analysis of the causes are helpful to restore the normal operation of the system and reduce the loss of power outage as soon as possible. Meteorology is one of the main causes of power system failure, but how to consider the influence of these factors in fault diagnosis is a problem to be studied deeply. In this context, the influence of meteorological factors on power system faults is systematically considered. Based on the existing fault diagnosis methods, the causes of the faults are analyzed by using the external factors such as weather at the time of fault occurrence. First of all, according to the topology of power system before and after the failure, the power failure area is identified, and the candidate fault elements are determined. On this basis, the relay protection and the state of the circuit breaker are used as the information source. A simplified model of power system fault diagnosis is constructed to determine fault elements from candidate fault elements. After that, the information and data obtained from external environmental monitoring equipment, such as pollution monitoring system, lightning monitoring system, meteorological early warning system, and the fault elements identified are used as the information sources for the analysis of the factors affecting the failure. In order to help the system operators locate and troubleshoot the faults quickly and restore the normal operation of the system as soon as possible, the external influencing factors are analyzed.
【作者單位】： 江蘇省電力公司電力科學(xué)研究院;浙江大學(xué)電氣工程學(xué)院;文萊科技大學(xué)電機(jī)與電子工程系;國網(wǎng)江蘇省電力公司電力調(diào)度控制中心;
【基金】：國家科技支撐計(jì)劃資助項(xiàng)目(2011BAA07B02) 國網(wǎng)江蘇省電力公司科技項(xiàng)目(JS2014002)
【分類號(hào)】：TM73

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