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Lookup NU author(s): Tahani Al-Mhana,
Professor Volker Pickert,
Dr Bashar Zahawi,
Dr Dave Atkinson
This is the authors' accepted manuscript of an article that has been published in its final definitive form by IEEE, 2019.
For re-use rights please refer to the publisher's terms and conditions.
IEEE The Forced Commutation Controlled Series Capacitor rectifier (FCSC-rectifier) has been recently proposed to power stand-alone variable-voltage variable-frequency generation systems, such as the Full Authority Digital Electronic Control System (FADEC), in more electric aircraft (MEA). The employment of this rectifier helps to meet increasing power demand requirements while maintaining low current harmonic levels without the need for bulky filters. The FCSC-rectifier is controlled to maintain resonance with line frequency variation by inserting variable capacitive reactance in series with the variable frequency (VF) generator's inductive reactance. Unity power factor operation with nearly pure sinusoidal converter input currents is thus achieved, for better utilization of the generator. The FCSC-rectifier operation with a variable DC on-board load is analyzed in this paper, including a description of the principle modes of operation of the circuit. The enhancement in circuit's output voltage and output power achieved by replacing the conventional diode bridge rectifier with the FCSC-rectifier is also demonstrated. Both rectifiers are analysed numerically using SABER/Synopsys over a wide range of operating voltages and frequencies. Results are experimentally verified using 1 kW laboratory test rig.
Author(s): Al-Mhana T, Pickert V, Zahawi B, Atkinson DJ
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Industrial Electronics
Print publication date: 01/07/2019
Online publication date: 20/12/2018
Acceptance date: 25/11/2018
Date deposited: 14/02/2019
ISSN (print): 0278-0046
ISSN (electronic): 1557-9948
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