Suppression of leakage flux and thrust ripple for slot-less tubular permanent magnet linear synchronous motor

Author

Qinglong Wang ; Bo Zhou ; Xuzhen Huang ; Qiang Tan

Author_Institution

Jiangsu Key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

4

Abstract

This paper focuses on the suppression of the leakage flux and thrust ripple for slot-less tubular permanent magnet linear synchronous motor (TPMLSM). The winding factors of the unipolar and bipolar winding structures were analyzed firstly. And then the convex pole was used to reduce the leakage flux and improve the average thrust mainly for the bipolar winding structure. On this basis, the primary core compensation was adopted to reduce the thrust ripple, which is carried out based on the analysis of the asymmetry inductances.

Keywords

linear motors; machine windings; magnetic flux; permanent magnet motors; synchronous motors; TPMLSM; asymmetry inductances; bipolar winding structures; convex pole; leakage flux; primary core compensation; slotless tubular permanent magnet linear synchronous motor; thrust ripple; unipolar winding structures; winding factors; Inductance; Insulation; Iron; Magnetic cores; Magnetic fields; Magnetic flux; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6940827

Filename

6940827