TY - GEN
T1 - Integrated Generator-Rectifier for Electric Ship DC Power System
AU - Huynh, Phuc
AU - Banerjee, Arijit
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85073191184&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073191184&partnerID=8YFLogxK
U2 - 10.1109/ESTS.2019.8847809
DO - 10.1109/ESTS.2019.8847809
M3 - Conference contribution
AN - SCOPUS:85073191184
T3 - 2019 IEEE Electric Ship Technologies Symposium, ESTS 2019
SP - 592
EP - 598
BT - 2019 IEEE Electric Ship Technologies Symposium, ESTS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Electric Ship Technologies Symposium, ESTS 2019
Y2 - 14 August 2019 through 16 August 2019
ER -