Concept and Preliminary Sizing of a Dual DC-Bus Homopolar Generator Using Diode Rectifiers

Vannini, A.; Papini, L.; Marfoli, A.; Gerada, C.; Bolognesi, P.

Abstract

Synchronous Homopolar Generators represent an attractive solution for the future of power generation in propulsive systems based on hybrid turbo-electric drivetrains. In fact they feature both a fully controllable excitation, similar to wound-field synchronous machines, and a very robust rotor like switched reluctance machines. The above features make this machine topology a promising alternative also to PM synchronous generators, even when DC power buses have to be supplied via diode rectifiers. The preliminary electromagnetic sizing of a 15 kW @ 15 krpm homopolar synchronous generator is proposed as a concept demonstrator, and then validated via 3-D Finite-Element analysis. The generation system is designed on purpose to supply two independent 600 V DC power buses for improved redundancy, by using 4 winding sections supplying 2 three-phase diode rectifiers connected in series per each bus to reduce the voltage ripple.

Citation

Vannini, A., Papini, L., Marfoli, A., Gerada, C., & Bolognesi, P. (2022). Concept and Preliminary Sizing of a Dual DC-Bus Homopolar Generator Using Diode Rectifiers. In 2022 International Conference on Electrical Machines (ICEM) (2074-2080). https://doi.org/10.1109/icem51905.2022.9910897

• Conference Name: 2022 International Conference on Electrical Machines (ICEM)
• Conference Location: Valencia, Spain
• Start Date: Sep 5, 2022
• End Date: Sep 8, 2022
• Acceptance Date: Jun 15, 2022
• Online Publication Date: Sep 5, 2022
• Publication Date: Sep 5, 2022
• Deposit Date: Jan 6, 2023
• Publicly Available Date: Jan 6, 2023
• Publisher: Institute of Electrical and Electronics Engineers
• Pages: 2074-2080
• Series ISSN: 2381-4802
• Book Title: 2022 International Conference on Electrical Machines (ICEM)
• ISBN: 9781665414333
• DOI: https://doi.org/10.1109/icem51905.2022.9910897
• Public URL: https://nottingham-repository.worktribe.com/output/12888357
• Publisher URL: https://ieeexplore.ieee.org/document/9910897
• Additional Information: © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.