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- Title
Variable Pole Pitch Electromagnetic Propulsion with Ladder-Slot-Secondary Double-Sided Linear Induction Motors.
- Authors
Jun Di; Yu Fan; Yajing Liu; Sijia Liu; Yulong Zhu
- Abstract
In this paper, we propose a novel variable pole pitch (VPP) electromagnetic (EM) propulsion technique using a series of ladder-slot-secondary double-sided linear induction motors (LS-secondary DLIMs). An equivalent circuit is developed for the LS-secondary DLIM, which considers the distribution of the eddy current in the ladders and the end effect. This equivalent circuit forms the basis for the subsequent design, numerical analysis, and optimization. The primary purpose of the VPP EM propulsion system is to address several obstacles encountered in high-speed large-thrust applications of LIMs, such as power factor improvement, optimization considering supply frequency constraint and operating kinetics, etc. The equivalent circuit of the LS-secondary DLIM, i.e., the theoretical foundation of the VPP EM propulsion, has been validated via simulation and experimentation on a small-scale platform, which proves that the numerical analysis of the VPP EM propulsion is effective.
- Subjects
LINEAR induction motors; ELECTROMAGNETISM; PROPULSION systems
- Publication
Applied Sciences (2076-3417), 2017, Vol 7, Issue 5, p481
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app7050481