Affiliation of Author(s):Nanjing University of Aeronautics and Astronautics
Teaching and Research Group:Room 401 & 402, Building 3
Journal:IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Key Words:Cogging force, compensation control, linear motor, orthogonal, orthogonal optimization.
Abstract:Abstract—Slot-less tubular permanent magnet synchronous linear
motor, usually adopts a cylindrical pole structure. It results in big leakage flux on the axis and serious uneven flux distribution in the secondary iron. The improved convex pole was used and researched in this paper, and a layered orthogonal optimization method was applied to reach the goal of the higher thrust and less permanent magnet dosage combing with the finite-element method. Therefore, the best values of the pole parameters were obtained. Because the detent force resulting from the end effect is hard to suppress under the strict volume constrains, the segmented detent force compensation control was further studied. A prototype was machined and tested, and the results indicated that the combination of the improved convex pole and detent force compensation is a very effective method to improve the thrust performance.
Indexed by:Journal paper
Discipline:Engineering
First-Level Discipline:Electrical Engineering
Document Type:J
Volume:26
Issue:7
Page Number:0611405
ISSN No.:1051-8223
Translation or Not:no
Date of Publication:2016-10-01
Included Journals:SCIE
Co-author:谭强,王庆龙,李静