Open AccessNew design method for multi‐stack disc‐type hysteresis motors based on analytical calculations
Author(s) -
Tahanian Hamed,
Darabi Ahmad
Publication year - 2018
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/iet-epa.2017.0273
Subject(s) - stack (abstract data type) , hysteresis , control theory (sociology) , electromagnetism , control engineering , magnetic hysteresis , nonlinear system , sample (material) , computer science , type (biology) , engineering , mechanical engineering , magnetic field , physics , control (management) , ecology , thermodynamics , programming language , magnetization , quantum mechanics , artificial intelligence , biology
Hysteresis motors are widely employed for a variety of high speed applications, thanks to their unique features. Usual design methods could not be used for these motors since the operation mechanism of hysteresis motors is also unique. However, an appropriately developed design method has not been provided by the few relevant published works. This study presents a new iterative design method, which is capable of being used for almost all hysteresis motor structures. Also, it is almost independent of the approach of obtaining the design equations. Multi‐stack disc‐type slotless structure has been selected as the case study, because of its interesting capabilities. Its design equations are derived by combining the fundamental laws of electromagnetism with the elliptical model of hysteresis loops. Some new techniques are introduced to increase the accuracy of these equations. A sample motor has been designed by applying the direct search optimisation to the proposed design method. The prototyped sample motor has been subjected to various tests. The measured operating characteristics show a great agreement with the design requirements.