隨機磁極 的英文怎麼說
中文拼音 [suíjīcíjí]
隨機磁極
英文
fugitive magnetic pole-
Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。Since iron hearts of a very similar role to iron core magnetic - fluid changes will enable the inductance with the electrical frequency change, and therefore affect the dynamics of the electrical performance
5 .由於爪極鐵心中的渦流作用引起鐵心磁導的變化，也就使電機的電感隨頻率而變化，因此影響電機的動態性能。We describe how magnetic fluid ' s inner structure transforms with the time under all kinds of conditions using magnetic dipole model and magnetic chain model. and using effect field theory we analyze the mechanisms of the magnetic particles being chains, change of the chains and reciprocity in chains. so we can make out that the transmissivity varies with the magnetic fluid ' s inner structure
利用磁偶極子模型和磁鏈模型描述了磁性液體在各種條件下內部結構隨時間的變化，並用有效場理論解釋了磁性微粒成鏈，鏈的變化以及鏈間相互作用的機理，從而說明了由於磁性液體內部結構變化導致的光透射率的變化。These years along with the development of power - electronics technique and micro - control technique, permanent magnetic brushless dc motor is characterized by small volume, light weight, high efficiency, low noises, big stand - alone capability and reliability appeared and matured. so it is hopeful to become new generation submarine propulsion motor
近年來隨著電力電子技術和微控制技術的迅猛發展而成熟起來的永磁無刷直流電機具有體積小、重量輕、高效低噪、單機容量大且可靠性高的特點，從而極有希望成為新一代潛艇推進電機。In the operation of the doubly salient permanent magnet ( dspm ) motor, some possible failures can occur, including the wrong connections of three armature windings, the wrong orders of three hall sensors, and the failures of hall sensor signals themselves, that is the hail sensor signal keeps the high level or the low level to be unchanged with the rotor position
摘要永磁雙凸極電機運行時，可能會出現以下常見故障：三相繞組線或和三相霍爾連接線的錯誤接線；霍爾信號自身的故障，即恆為高電平或低電平，其電平不隨轉子位置變化而變化。分享友人