Integrated Generator-Rectifier for Electric Ship DC Power System

Phuc Huynh, Arijit Banerjee

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Future ships are envisioned to be electric with a medium-voltage dc grid feeding all the subsystems, including propulsion, weapons, and auxiliary loads. Gas-turbine driven ac generators are prominent candidates for shipboard electricity generation due to a high energy density. Consequently, megawatt-class ac-to-dc conversion systems are essential to make electric ships feasible. At medium-voltage and megawatt power, conventional ac-to-dc conversion systems are challenged by limited power electronics switch-voltage ratings, high conversion loss, convoluted circuitry, and complex control schemes. An integrated generator-rectifier system has been proposed as an alternative that employs low-voltage switches to form a medium-voltage dc bus. Low conversion losses and high system reliability are achieved by shifting power to the efficient passive rectifiers. This paper presents an integrated design in context of shipboard power system. Theoretical analyses show the size of the active rectifier is reduced by 37% and the total conversion loss is cut by 50A laboratory setup is established to corroborate the proposed system.

Original languageEnglish (US)
Title of host publication2019 IEEE Electric Ship Technologies Symposium, ESTS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages7
ISBN (Electronic)9781538675601
StatePublished - Aug 2019
Externally publishedYes
Event2019 IEEE Electric Ship Technologies Symposium, ESTS 2019 - Washington, United States
Duration: Aug 14 2019Aug 16 2019

Publication series

Name2019 IEEE Electric Ship Technologies Symposium, ESTS 2019


Conference2019 IEEE Electric Ship Technologies Symposium, ESTS 2019
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Automotive Engineering


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