电气电子教学学报
電氣電子教學學報
전기전자교학학보
JOURNAL OF ELECTRICAL & ELECTRONIC ENGINEERING EDUCATION
2014年
5期
34-37,44
,共5页
电磁耦合%AT2磁路%统一模型
電磁耦閤%AT2磁路%統一模型
전자우합%AT2자로%통일모형
electromagnetic coupling%AT2 magnetic circuit%unified model
等效电路是“电机学”课程教材中各类电机的重要内容,但教材着力于不同电机结构,因此存在各种不同的等效电路。本文利用磁场和材料特性不变原则,通过坐标变换和绕组折算,将不同频率的电压方程转换成相同频率和统一磁链形式,再引入磁势与统一匝数乘积的新物理量AT2,将磁势与磁通描述的磁路模型转换成AT2与磁链模型,从而获得统一电磁耦合模型。理论研究揭示了不同种类电机之间存在的共同电磁耦合本质,将有助于深入理解《电机学》教材的内容。
等效電路是“電機學”課程教材中各類電機的重要內容,但教材著力于不同電機結構,因此存在各種不同的等效電路。本文利用磁場和材料特性不變原則,通過坐標變換和繞組摺算,將不同頻率的電壓方程轉換成相同頻率和統一磁鏈形式,再引入磁勢與統一匝數乘積的新物理量AT2,將磁勢與磁通描述的磁路模型轉換成AT2與磁鏈模型,從而穫得統一電磁耦閤模型。理論研究揭示瞭不同種類電機之間存在的共同電磁耦閤本質,將有助于深入理解《電機學》教材的內容。
등효전로시“전궤학”과정교재중각류전궤적중요내용,단교재착력우불동전궤결구,인차존재각충불동적등효전로。본문이용자장화재료특성불변원칙,통과좌표변환화요조절산,장불동빈솔적전압방정전환성상동빈솔화통일자련형식,재인입자세여통일잡수승적적신물리량AT2,장자세여자통묘술적자로모형전환성AT2여자련모형,종이획득통일전자우합모형。이론연구게시료불동충류전궤지간존재적공동전자우합본질,장유조우심입리해《전궤학》교재적내용。
Equivalent circuits of electric machines are significant content in textbook of Electric Machinery. Howev-er,the textbook is focused on typical structures of electric machines. Therefore,there exist different kinds of equiv-alent circuits. Based on invariant principle of magnetic field and material properties,combined with coordinate transformation and referring winding,voltage equations with different frequencies are transformed into ones with identical frequency and unified flux linkage form. Furthermore,introduced new physical quantity AT2,i. e. ,the product of magneto-motive force( MMF)per pole and equivalent turns of winding,magnetic circuit described by MMF and magnetic flux is redefined by AT2 and flux linkage. Unified electromagnetic coupling model of electric machines is obtained in this paper. Theoretical research exhibits the intrinsic nature of different types of electric machines with electromagnetic coupling and helps us to deeply understand the textbook of Electric Machinery.