Innovative Processing for Power Factor and Efficiency Improvement of LSPM Considering Inductance of Rotor Structure
- 10.2991/cisia-15.2015.51How to use a DOI?
- LSPM; inductance; rotor structure; efficiency; power factor; FEA
Recently Line Start Permanent Magnet Machine (LSPM) is a well-known motor due to its technical advantages in academic and industrial sector. The LSPM combines a permanent magnet rotor that allows higher motor efficiency during synchronous operation, and an induction motor squirrel cage rotor for starting the motor by connecting it directly to an A.C. Source. Such a construction generates important technical advantages like reduced manufacturing costs and better performances. In this paper, we will deal with the efficiency and Power factor improvement of a 3.4kW, 2-pole, three-phase LSPM using the difference in d-axis magnetic inductance (Ld) and q-axis magnetic inductance (Lq). d-axis and q-axis magnetic inductance are nonlinear problem which are varied with current level and current angle. Therefore, nonlinear finite element analysis is necessary to obtain the Ld and Lq. The efficiency improvement can be effectively achieved by designing optimization of the rotor structure using finite element method. The optimized slot shape of PM was selected for the prototype machine, which improves the efficiency and power factor of LSPM.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - S. Saha AU - S.I Byun AU - Y.H Cho PY - 2015/06 DA - 2015/06 TI - Innovative Processing for Power Factor and Efficiency Improvement of LSPM Considering Inductance of Rotor Structure BT - Proceedings of the International Conference on Computer Information Systems and Industrial Applications PB - Atlantis Press SP - 192 EP - 196 SN - 2352-538X UR - https://doi.org/10.2991/cisia-15.2015.51 DO - 10.2991/cisia-15.2015.51 ID - Saha2015/06 ER -