預置型開關 的英文怎麼說
中文拼音 [yùzhìxíngkāiguān]
預置型開關
英文
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In power system full dynandc simulation software, the adndttance matrixes of fault branches are adopted in the fault models to simulate arbitrary symmetrical and unsymmetrical faults, by use of contraction technique for adndttance matrix the multi - faults and the randomly occurred faults can be processed. the feature of this method is that the arbitrary multi - fault occurred in a branch can be simulated without any additional branches or buses to be added, thereby, the ca1culation efficiency and the expedience of usage are improved
本文提出採用故障支路導納陣處理復故障計算，該演算法可以對一條支路發生任意重故障進行處理，而不需要增加支路或節點，克服了目前常用的電力系統機電暫態程序在處理復故障時，一般要按照事先預想的故障類型以及故障和操作發生的位置增加新的節點和小開關支路的問題。Considering this point and by applying trend surface fitting method and its principles of model optimization, the correspondingly numerical relations between the change of gas content and its spatial distribution in luling coal mine are obtained, based on this result, an accurate, reliable and quantitative forecast of gas in deep stopes and unexploited region can be achieved
結合趨勢面擬合及其模型優化的原理和方法分析得出了淮北礦業集團公司蘆嶺煤礦井田范圍內瓦斯含量的變化及分佈與其位置坐標的對應數值關系，依據該數值關系可對礦井深部采場和未開采區域實施比較準確、可靠的定量瓦斯預測。
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