DocumentCode :
230325
Title :
A general and intuitive approach to understand and compare the torque production capability of AC machines
Author :
Dong Wang ; Kaiyuan Lu ; Rasmussen, Peter Omand
Author_Institution :
Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark
fYear :
2014
fDate :
22-25 Oct. 2014
Firstpage :
3136
Lastpage :
3142
Abstract :
Electromagnetic torque analysis is one of the key issues in the analysis of electric machines. It plays an important role in machine design and control. The common method described in most of the textbooks is to calculate the torque in the machine variables and then transform them to the dq-frame, through complicated mathematical manipulations. This is a more mathematical approach rather than explaining the physics behind torque production, which even brings a lot of difficulties to specialist. This paper introduces a general and intuitive approach to obtain the dq-frame torque equation of various AC machines. In this method, torque equation can be obtained based on the intuitive physical understanding of the mechanism behind torque production. It is then approved to be applicable for general case, including rotor saliency and various types of magnetomotive force sources. As an application example, torque equations of permanent magnet machine, synchronous reluctance machine and induction machine are obtained, where torque production capability of each machine may be easily understood and a fair comparison of these machine types may then be carried out.
Keywords :
asynchronous machines; permanent magnet machines; reluctance machines; rotors; ac machines; dq-frame torque equation; electric machines; electromagnetic torque analysis; general approach; induction machine; intuitive physical understanding; machine control; machine design; machine variables; magnetomotive force sources; mathematical manipulations; permanent magnet machine; rotor saliency; synchronous reluctance machine; torque production capability; Equations; Magnetic fields; Mathematical model; Rotors; Stator windings; Torque;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
Type :
conf
DOI :
10.1109/ICEMS.2014.7014033
Filename :
7014033
Link To Document :
بازگشت