氣體溶解系數 的英文怎麼說
中文拼音 [qìtǐróngjiěxìshǔ]
氣體溶解系數
英文
gas solubility coefficient- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 體 : 體構詞成分。
- 溶 : 動詞(溶化; 溶解) dissolve
- 解 : 解動詞(解送) send under guard
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 數 : 數副詞(屢次) frequently; repeatedly
- 氣體 : gas; gaseous fluid
- 溶解 : dissolve; dissolution; solution; lysis; solvus; resolution; decomposition; resolving; solving; fu...
- 系數 : [數學] coefficient; ratio; modulus; quotient; factor
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Utilising dissolved gases analysis, a new insulation fault diagnosis method for power transformers is proposed. this method is based on the group grey relational grade analysis method. first, according to the fault type and grey reference sequence structure, some typical fault samples are divided into several sets of grey reference sequences. these sets are structured as one grey reference sequence group. secondly, according to a new calculation method of the grey relational coefficient, the individual relational coefficient and grade are computed. then according to the given calculation method for the group grey relation grade, the group grey relational grade is computed and the group grey relational grade matrix is structured. finally, according to the relational sequence, the insulation fault is identified for power transformers. the results of a large quantity of instant analyses show that the proposed method has higher diagnosis accuracy and reliability than the three - ratio method and the traditional grey relational method. it has good classified diagnosis ability and reliability
基於變壓器油中溶解氣體分析,提出了一種基於群灰色關聯度分析的變壓器絕緣故障診斷新方法.首先根據故障類型與灰色參考序列構造,選擇變壓器典型故障樣本構造多組參考序列,這些參考序列組構成一個灰色參考序列群.其次根據給出的新的關聯系數計算方法,計算個體關聯系數和關聯度.然後根據給出的群灰色關聯度計算方法,計算群灰色關聯度和構造群灰色關聯度矩陣.最後根據關聯序識別變壓器絕緣故障診斷.通過大量變壓器絕緣故障診斷實例分析,所提方法診斷準確性與可靠性優於三比值法和傳統的灰色關聯分析方法,具有較好的分類診斷能力和可靠性In this approach, the concentration and development trend of gases dissolved in transformer oil are predicted primarily using gm ( 1, 1 ) model, and then the predicted results are calibrated by self - learning bp - neural networks with calibrated parameters obtained by analyzing the interaction of different types of gases and the relationship between the time sequences of gas concentrations
此法是利用gm ( 1 , 1 )模型初步預測油中溶解氣體的濃度及變化趨勢,通過分析故障氣體組分之間的影響及氣體濃度時間序列之間的關系確定修正參數,將初步預測結果與修正參數作為自學習bp網路的輸入,從而完成預測結果的在線修正。As the back - propagation neural network ( bpnn ) is adopted to diagnose the dissolved gases of transformer, convergence rate becomes slow, convergence precision becomes bad and even being out of convergence as more sampled data are trained and more complicated relation between input and output becomes
根據電力變壓器油中溶解氣體分析( dga ) ,採用反向傳播神經網路( bpnn )對電力變壓器進行故障診斷時,隨著學習樣本數目的增多,輸入輸出關系的復雜化,網路收斂的速度將變得緩慢,收斂精度不理想甚至不收斂。The paper analyses the on - line monitoring power transformer " s chromatogram of oil in the pingliang 110kv substation and investigation the status in quo of transformer insulation monitor based on chromatogram of transformer oil. after the analysis of deflection sources in routine chromatogram of oil test, the paper brings into effect successfully the equipment on the base of characteristic infiltrative film monitoring six gases dissolved in transformer oil in the pingliang substation 2 # transformer. through analyzing a great deal practical data, it is proved that the monitoring system is stable and reliable, and has the ability to show the transformer ' s running state
論文通過對平涼110kv變電站實施主變壓器油色譜在線監測及目前國內外對變壓器油色譜在線監測技術的現狀分析,結合影響常規油色譜測量結果及誤差來源分析,在平涼變電站2 #主變壓器上成功實施了以滲透氣體膜原理為基礎的變壓器油中六種溶解氣體在線監測及診斷裝置,通過大量運行數據分析,系統運行穩定,能正確反映變壓器的實際運行情況,並有效抓住了變壓器的一次故障,可作為狀態維修的依據。The research works are shown mainly as follows : 1 ) the actuality and outlook of on - line detecting and fault diagnosis technology of gases dissolved in oil are analysed deeply, and characteristics of insulation structure of power transformer, evaluation of operating reliability and the relationship between ordinary faults inside transformer and gases dissolved in transformer oil are studied too. analysing the purposes of detecting gases dissolved in transformer oil on - line, we can know that primary indexes to evaluate the technology of on - line detecting gases dissolved in transformer oil are reliability of system, accuracy of detected data, validity of diagnosis, automatization and price of systems
主要研究內容有: 1 )深入分析變壓器油中多種溶解氣體在線監測及故障診斷技術研究現狀及應用前景,研究電力變壓器絕緣結構特性、運行可靠性評估以及變壓器內部常見故障與油中溶解氣體對應關系,通過對在線監測變壓器油中溶解氣體的目的分析得出系統運行的可靠性、監測數據的正確性、診斷的有效性、系統的自動化程度、系統的價格等是綜合評價變壓器油中溶解氣體在線監測技術的指標。分享友人