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A new brushless wound rotor synchronous machine using a special stator winding arrangement

Title
A new brushless wound rotor synchronous machine using a special stator winding arrangement
Author
권병일
Keywords
Brushless wound rotor synchronous machine (BL-WRSM); Special stator winding; Sub-harmonic magneto-motive force (SH-MMF) component; Harmonic winding; 2-D finite element analysis (FEA)
Issue Date
2017-11
Publisher
SPRINGER
Citation
ELECTRICAL ENGINEERING, v. 100, No. 3, Page. 1797–1804
Abstract
This paper proposes a new topology for a brushless wound rotor synchronous machine (BL-WRSM) using a specially designed stator winding supplied through a single three-phase inverter. In this topology, a special stator winding, which comprises of two sets of series-connected windings with an unequal number of turns, is used to generate an additional spatial sub-harmonic component in the stator magneto-motive force (MMF). This additional sub-harmonic MMF (SH-MMF) component is utilized for exciting the field winding of the BL-WRSM. The advantage of the proposed brushless topology is the use of a single inverter compared to a dual inverter used in the existing dual inverter BL-WRSM. For the rotor, there are two separate windings: (1) harmonic winding and (2) field winding. Both the harmonic and field windings are connected in parallel with each other through a rotating rectifier. The additional SH-MMF component generates a rotating air-gap magnetic field, which induces the voltage in the harmonic winding. This induced voltage is then rectified and used to supply a dc current to the field winding. A 2-D finite element analysis is performed to analyze and verify the operating principle of this new BL-WRSM.
URI
https://link.springer.com/article/10.1007/s00202-017-0662-8http://repository.hanyang.ac.kr/handle/20.500.11754/103742
ISSN
0948-7921; 1432-0487
DOI
10.1007/s00202-017-0662-8
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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