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

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

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publication2022 International Conference on Electrical Machines, ICEM 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2074-2080
Number of pages7
ISBN (Electronic)9781665414326
DOIs
Publication statusPublished - 2022
Event2022 International Conference on Electrical Machines, ICEM 2022 - Valencia, Spain
Duration: 5 Sep 20228 Sep 2022

Publication series

Name2022 International Conference on Electrical Machines, ICEM 2022

Conference

Conference2022 International Conference on Electrical Machines, ICEM 2022
Country/TerritorySpain
CityValencia
Period5/09/228/09/22

Keywords

  • 3-D Finite-Element
  • Diode-Rectifier
  • Electric Propulsion
  • Generator
  • Homopolar Synchronous Machine

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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