本文選題：智能高壓開關(guān)柜 + 局部放電　； 參考：《江蘇科技大學(xué)》2014年碩士論文

【摘要】：智能高壓開關(guān)柜是智能電網(wǎng)的重要電力設(shè)備之一，對保障智能電網(wǎng)安全運行起到了重要作用。絕緣故障是導(dǎo)致智能高壓開關(guān)柜和其他電力設(shè)備發(fā)生電力故障或事故的主要原因之一，嚴重影響了電力系統(tǒng)安全運行。對電力設(shè)備進行局部放電在線監(jiān)測能夠及時發(fā)現(xiàn)設(shè)備的絕緣故障，防止事故進一步擴大，有效的減少了電力事故的發(fā)生，因此，對電力設(shè)備進行在線監(jiān)測意義重大。本文主要針對智能高壓開關(guān)柜局部放電在線監(jiān)測系統(tǒng)進行了研究，具體研究內(nèi)容如下： 首先，闡述了局部放電的原理及各種檢測方法，設(shè)計了智能高壓開關(guān)柜局部放電在線監(jiān)測系統(tǒng)的總體方案，主要包括超聲波和超高頻局部放電監(jiān)測單元的設(shè)計。 其次，著重設(shè)計了監(jiān)測系統(tǒng)的硬件部分和軟件部分。硬件部分設(shè)計包括包括超聲波檢測電路、超高頻檢測電路、DSP最小系統(tǒng)和通信部分的硬件電路設(shè)計，并在實驗室條件下，對超聲波放電檢測電路進行了實際測試；軟件部分設(shè)計了超聲波監(jiān)測系統(tǒng)的下位機軟件，包括信號采集、信號處理、顯示和通信程序的設(shè)計，并和上位機軟件進行了聯(lián)調(diào)測試。 最后，研究了監(jiān)測系統(tǒng)基于信息融合技術(shù)的模式識別過程，系統(tǒng)信息融合包括特征層和決策層的信息融合。以超聲波放電信息為對象，研究了監(jiān)測系統(tǒng)的模式識別過程，并在實驗室條件下對模式識別過程進行了論證。 本文設(shè)計的超聲波局部放電在線監(jiān)測系統(tǒng)在實驗室條件下取得了較好的效果，基本實現(xiàn)了系統(tǒng)的功能。對超高頻局部放電監(jiān)測系統(tǒng)研究了設(shè)計思想，是需進一步研究的內(nèi)容。
[Abstract]:Intelligent high voltage switchgear is one of the important power equipment in smart grid, which plays an important role in ensuring the safe operation of smart grid.Insulation fault is one of the main causes of power failure or accident in intelligent high-voltage switchgear and other power equipment, which seriously affects the safe operation of power system.On-line partial discharge monitoring of power equipment can detect insulation faults in time, prevent further expansion of accidents, and effectively reduce the occurrence of power accidents. Therefore, on-line monitoring of power equipment is of great significance.In this paper, the on-line monitoring system of intelligent high voltage switchgear partial discharge is studied. The specific research contents are as follows:Firstly, the principle and various detection methods of partial discharge are introduced, and the overall scheme of intelligent high voltage switchgear partial discharge on-line monitoring system is designed, which mainly includes the design of ultrasonic and UHF partial discharge monitoring unit.Secondly, the hardware and software of the monitoring system are designed.The hardware design includes ultrasonic detection circuit, UHF detection circuit, DSP minimum system and communication circuit. The ultrasonic discharge detection circuit is tested in the laboratory.In the software part, the lower computer software of ultrasonic monitoring system is designed, including the design of signal acquisition, signal processing, display and communication program.Finally, the pattern recognition process of monitoring system based on information fusion technology is studied. The system information fusion includes feature level and decision level information fusion.Taking ultrasonic discharge information as an object, the pattern recognition process of the monitoring system is studied, and the pattern recognition process is demonstrated under laboratory conditions.The ultrasonic partial discharge on-line monitoring system designed in this paper has achieved good results in laboratory conditions and has basically realized the functions of the system.The design idea of UHF PD monitoring system is studied, which needs further research.
【學(xué)位授予單位】：江蘇科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM591

【參考文獻】

相關(guān)期刊論文 前1條

1 陳彬，洪家榮，王亞東;最優(yōu)特征子集選擇問題[J];計算機學(xué)報;1997年02期

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本文編號：1757947