higher derivation 中文意思是什麼
higher derivation
解釋
高階求導- higher : adj 〈high 的比較級〉較高的；高等的。 higher command 【軍事】＝ high command higher criticism 聖...
- derivation : n. 1. 引出，導出。2. 出處，由來，起源。3. 【語言學】詞源；派生。4. 衍生；衍生物。
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With the best modulation strategy which was found on condition that it must have largest energy transfer ratio, smallest current ripple of the inductor, and realizing zvs of each switches, the converter overcomes the drawbacks presented by the conventional zvs fb converter, such as high voltage stress of each switches, large current ripple of the inductor, and severe parasitic ringing on the rectifier diodes, so it can get higher efficiency, faster respond speed, and wider application area. the operation principle of the proposed converter is analyzed and verified by a 3kw, 50khz experimental prototype. experiments and research results show that the scheme of the tl topology derivation is reasonable, adjusted modulation strategy makes some other severe problems in conventional topologies easy to solve or makes the converter more competitive
研究結果表明，本文提出的三電平拓撲變換方案合理，針對各種三電平拓撲尋找到的控制策略可以解決變換器存在的某些問題或使變換器表現出更突出的優勢：例如針對單管直流變換器三電平拓撲的控制策略可以減小電感的設計值，針對推挽直流變換器三電平拓撲的控制策略可以實現開關管的軟開關、解決變壓器偏磁問題等，針對全橋直流變換器三電平拓撲的控制策略可以減小電感的設計值、實現開關管的軟開關等。 -
This paper analyses the tangent equation of space curve and the derivation process of the curved tangent plane equation in the higher - mathematics teaching - materials, and shows another method to extract the tangent equation of space curve
摘要分析高等數學教材中空間曲線的切線方程和曲面的切平面方程的推導過程，給出求空間曲線的切線方程的另一種方法。 -
So the higher output power can be achieved. the analysis of dispersion characteristic and interaction impedance characteristic was shown. then the derivation of boundary condition for dispersion characteristic simulation and the theory derivation of interaction impedance characteristic computed with dispersion characteristic result were all shown
文中介紹了色散特性和耦合阻抗特性的分析方法，給出了色散特性模擬時邊界條件的推導和由色散特性結果計算耦合阻抗特性的理論推導過程，並具體給出了用ansys模擬冷測特性的方法和步驟。
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