DocumentCode :
634085
Title :
A novel brushless synchro: Operation principle and experimental results
Author :
Pazouki, Davood ; Ghafarzadeh, Mahdi ; Abedini, Reza ; Aliabad, Aliakbar Damaki ; Kamali, E. Ali
Author_Institution :
Iran Univ. of Sci. & Technol., Tehran, Iran
fYear :
2013
fDate :
14-16 May 2013
Firstpage :
1
Lastpage :
6
Abstract :
In synchroes and resolvers, brushes and slip-rings produce a lot of noise in the output signal. Compared to encoders, the application of such position sensors in precision control systems are restricted because of their lower accuracy. In this research, a novel scheme of a brushless synchro is introduced. In this scheme, the secondary windings are mounted on the stator and the stator magnetic flux passes a certain path in the rotor and induces voltage in the secondary windings. The operation principle is clearly described in the paper and by using 2D finite element method the novel synchro is initially designed and analyzed. The stator winding´s turns is calculated by a method based on desired harmonic elimination to have a sinusoidal magneto motive force. A prototype has been fabricated and tested. The experimental results are in good agreement with simulations and verify the theoretical concepts.
Keywords :
brushless machines; finite element analysis; harmonics suppression; magnetic flux; stators; synchros; 2D finite element method; brushless synchro; harmonic elimination; output signal noise; position sensors; precision control system; resolver; rotor; secondary winding; sinusoidal magnetomotive force; slip-ring; stator magnetic flux; Harmonic analysis; Magnetic cores; Rotors; Stator cores; Stator windings; Windings; E-shaped stator; Three-phase brushless synchro; harmonic elimination;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
Type :
conf
DOI :
10.1109/IranianCEE.2013.6599625
Filename :
6599625
Link To Document :
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