A New Small-Scale Self-Excited Wound Rotor Synchronous Motor Topology
| Autor: | Muhammad Ayub, Jong-Suk Ro, Ghulam Jawad Sirewal, Syed Sabir Hussain Bukhari |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Physics Stator Rotor (electric) Astrophysics::High Energy Astrophysical Phenomena Topology (electrical circuits) Topology 01 natural sciences Field coil Wound rotor motor Electronic Optical and Magnetic Materials law.invention Quantitative Biology::Subcellular Processes law Physics::Space Physics 0103 physical sciences Exciter Astrophysics::Solar and Stellar Astrophysics Electrical and Electronic Engineering Synchronous motor Physics::Atmospheric and Oceanic Physics Armature (electrical engineering) |
| Zdroj: | IEEE Transactions on Magnetics. 57:1-5 |
| ISSN: | 1941-0069 0018-9464 |
| DOI: | 10.1109/tmag.2020.3009372 |
| Popis: | In this article, a new low-cost small-scale three-phase brushless motor topology is proposed. This is a new topology for self-excitation of brushless wound rotor synchronous motor investigated initially for rated speed. For brushless excitation, the stator is designed to contain two windings, namely, three-phase armature winding and exciter winding. The rotor consists of two windings, that is, harmonic winding and field winding, and a diode rectifier. An inverter feeds the three-phase armature winding which is connected in series through an uncontrolled three-phase rectifier to a single exciter winding. When the current is supplied from the inverter, both the armature and exciter windings are energized eventually producing a flux in the air gap. Since the flux produced by the exciter winding is not synchronized with the field winding, it produces a harmonic to be intercepted by the harmonic winding on the rotor. Eventually, the voltage produced in the harmonic winding is used to feed dc current to the field winding for brushless operation. The results obtained by 2-D finite-element analysis (FEA) validate the brushless operation of the motor. The proposed motor is analyzed basically for topology verification with the FEA results. Since the topology can be verified, further effort can be put to investigate such low-cost topologies for brushless wound rotor synchronous motor. It can be an alternative to a costly permanent magnet synchronous motor for specific applications. |
| Databáze: | OpenAIRE |
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