Research on Self-exciting Air-core Pulsed Alternator Considering Armature Reaction

Compared with the traditional synchronous generator with iron core structure, air-core pulse alternator usually adopts self-excitation to establish a higher field current to meet its demand for high flux density. In this paper, the topology of the self-exciting rectifier is determined to be the full...

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Bibliographic Details
Published in:E3S web of conferences 2021-01, Vol.252, p.2002
Main Authors: Li, Wenchao, Zhang, Ying, Liu, Zehui, Luo, Danni, Wang, Youlong, Sun, Yaohong
Format: Article
Language:English
Subjects:
Alternators
Commutation
Equivalent circuits
Excitation
Flux density
Phase control
Rectifiers
Topology
Winding
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Summary:Compared with the traditional synchronous generator with iron core structure, air-core pulse alternator usually adopts self-excitation to establish a higher field current to meet its demand for high flux density. In this paper, the topology of the self-exciting rectifier is determined to be the full bridge rectifier by discussing the respective application scope of the full bridge and the half wave rectifier. Considering the armature reaction, the self-excitation process and the coupling relationship between the field winding and the armature winding are analyzed. According to the commutation overlap angle, the equivalent circuits of different states are carried out, and the instantaneous expressions of field current and armature current are deduced, which lays a foundation for the following phase control research.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/202125202002