Development and Analysis of a New Hybrid Excitation Brushless DC Generator With Flux Modulation Effect

A new hybrid excitation brushless dc generator (HEBLDCG) consisting of structure-parallel permanent magnet machine part and flux modulation machine part is proposed in this paper. Based on the flux modulation effect, the permanent magnet machine and flux modulation machine parts, which have differen...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2019-06, Vol.66 (6), p.4189-4198
Main Authors: Sun, Linnan, Zhang, Zhuoran, Yu, Li, Gu, Xiangpei
Format: Article
Language:English
Subjects:
Air gaps
Brushless dc power generation system
Circuit reliability
Circuits
Component reliability
DC generators
Diode rectifiers
Electric power generation
Excitation
Flux
flux modulation machine (FMM)
hybrid excitation machine (HEM)
Magnetic flux
Modulation
Onboard equipment
operating mode
permanent magnet machine (PMM)
Permanent magnets
phase shift factor (PSF)
Phase transitions
Reliability analysis
Rotors
Short circuit currents
Stator windings
Windings
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Summary:A new hybrid excitation brushless dc generator (HEBLDCG) consisting of structure-parallel permanent magnet machine part and flux modulation machine part is proposed in this paper. Based on the flux modulation effect, the permanent magnet machine and flux modulation machine parts, which have different operating principles, can be combined. In addition, the proposed HEBLDCG features a lower short-circuit current by regulating field current, which increases reliability. The operating modes of flux modulation machine part are fully analyzed under different conditions. Changes in the phase shift factor of the permanent magnet machine part caused by the operating modes of the flux modulation machine part are investigated. Further, the proposed HEBLDCG features constant voltage output at a wide range of speeds. Finally, a prototype HEBLDCG is designed and manufactured. The experimental data agree with the simulated data. Loss breakdown is analyzed and efficiency is measured. An HEBLDCG with a reliable diode rectifier is promising for application in on-board dc power generation systems.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2018.2864701