【文章內(nèi)容簡介】 摘 要： 提出了硬件冗余的雙重化錄波架構(gòu) ,即采用兩套相互獨立的硬件并行工作 ,其中一套無啟動元件 ,以恒采樣率連續(xù)記錄電力系統(tǒng)的運行參數(shù) ,實現(xiàn)電力系統(tǒng)運行的穩(wěn)態(tài)記錄 ,另一套由啟動元件觸發(fā) ,以相對較高的采樣率捕獲記錄故障切除的暫態(tài)過程 ,實現(xiàn)故障過程的暫態(tài)記錄。兩套數(shù)據(jù)分別存儲。 (2)穩(wěn)態(tài)錄波是一種基于采樣值連續(xù)的記錄方式 ,長時間的連續(xù)記錄將產(chǎn)生海量的數(shù)據(jù) ,目前 ,只能選擇硬盤作為存儲介質(zhì)。本項目采用了無損壓縮技術(shù) ,將每 3 秒數(shù)據(jù)壓縮暫存為 1 個記錄段 ,每 100 個記錄段保 存一次硬盤 ,亦即大約 5min 寫一次硬 ......[ 來源 數(shù)據(jù)庫： 中知網(wǎng) ⑥ 題 名： 基于廣義狀態(tài)監(jiān)測的設備新型狀態(tài)檢修體系的研究與應用 作 者： 王紅斌 文獻源： 科技成果 摘 要： 隨著國民經(jīng)濟的不斷發(fā)展 ,電網(wǎng)安全穩(wěn)定對政治、經(jīng)濟的貢獻意義非常重大。電力設備健康狀態(tài)的好壞直接關(guān)系到電網(wǎng)抵御風險的能力。開展基于廣義狀態(tài)監(jiān)測的設備新型狀態(tài)檢修體系的研究 ,以電力設備可靠性為基點 ,科學評估設備風險 ,采用有效的風險預防措施及科學的檢修策略來控制風險后果 ,是推進電網(wǎng)運行水平提高 ,適應智能電網(wǎng)發(fā)展需要的必然選擇。 正是 基于以上一些有待解決的問題 ,本項目首次提出融合運行巡視、帶電測試、在線監(jiān)測、停電試驗等多種設備運維手段的廣義狀態(tài)監(jiān)測理念 ,首次提出了包含廣義狀態(tài)監(jiān)測、狀態(tài)評價、風險評 ......[詳細 ] 來源 數(shù)據(jù)庫： 中知網(wǎng) （ 3）在所檢文獻中，下列文獻為 英文文獻 （不少于 3 篇） ① 題 名： Internal fault detection techniques for power transformers 作 者： Narri Yadaiah, Nagireddy Ravi 文獻源： Applied Soft Computing, Volume 11, Issue 8, December 2021, 摘 要： This paper presents the methodologies for incipient fault detection in power transformers both offline and online. An artificial neural work is used to detect faults offline with dissolved gas analysis reports of transformers and whereas wavelet transforms are being used for online fault detection. The accuracy in fault detection through artificial neural works is pared with Rogers ratio method using the analysis of experimental oil samples for power transformers of power panies in Andhra Pradesh, India. The Wavelet transform techniques have been developed with different mother wavelets to detect incipient faults and to distinguish between incipient fault and short circuit fault. Further their performances with different mother wavelets are pared. 來源 數(shù)據(jù)庫： Elsevier SD ② 題 名： Applied Soft Computing 作 者： V. Duraisamya, , N. Devarajanb, D. Somasundareswaria, A. Antony MarVasanthb, . Sivanandamc 文獻源： Department of Electrical and Electronics Engineering, Kumaraguru College of Technology, Coimbatore 641 006, India 摘 要： This paper proposes fuzzy system and neural work approaches to identify the incipient faults in the power transformer using dissolved gas analysis (DGA) method. Using the IEC/IEEE DGA criteria and the gas concentration values as references the fuzzy diagnosis system and neural work are built. The proposed systems are verified using practical data collected from Electricity Board. The fuzzy system is tested with triangular, trapezoidal and Gaussian membership functions and its effectiveness is analyzed through simulation in terms of accuracy in identifying the transformer faults. The proposed Back propagation work is verified to overe the drawbacks of conventional methods. The proposed schemes are simulated and tested in the software environment. The simulation results are presented 來源 數(shù)據(jù)庫： Elsevier SD ③ 題 名： Electric Power Systems Research 作 者： Andrzej Wiszniewskia, , Waldemar Rebizanta, , Ludwig Schiel 文獻源： The Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50370 Wroclaw, Poland 摘 要： In the paper new algorithms for detection of internal interturn faults in power transformers are described. Such faults are extremely difficult to detect since they induce negligible increase of the currents at the transformer terminals, although the currents flowing at the fault place are very high and dangerous for the transformer to be protected. The algorithms developed are based on the differential equation of the equivalent circuit of the transformer. In one version additional information from a CT installed inside of the triangle of delta side windings is used, which brings very promising results. Theoretical investigations are supported and illustrated with simulation studies performed both with MATLAB and EMTPATP programs 來源 數(shù)據(jù)庫： EBSCOhost 三、 英文文獻摘要及翻譯 密切相關(guān) 英文文獻： ① 題 名： Power transformers winding fault diagnosis by the onload exciting current Extended Park39。s Vector Approach 作 者： Lu237。s . Oliveiraa, b, c,. Marques Cardosoa, c, S233。rgio . Cruza, c, 文獻源： Department of Electrical and Computer Engineering, Faculty of Sciences and Technology, University of Coimbra, P3030290 Coimbra, Portugal 摘 要： This paper presents the application of the onload exciting current Extended Park39。s Vector Approach to diagnose incipient turntoturn winding faults in operating power transformers. Experimental and simulation test results demonstrate the effectiveness of the proposed technique, which is based on the spectral analysis of the AC ponent of the onload exciting current Park39。s Vector modulus 來源 數(shù)據(jù)庫： EBSCOhost 該 英文 文獻 摘要 內(nèi)容 翻譯： 本文介紹了應用上的負載勵磁電流擴展公園的向量方法來診斷早期反過來把經(jīng)營電力變壓器繞組故障。實驗 和模擬的測試結(jié)果表明所提出的方法的有效性，這是基于上的負載的勵磁電流公園的媒介模量的 AC分量的頻譜分析 四、 根據(jù)以上所檢索