Voltage and current spectra for matrix power converters

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Cox, Stephen M. and Creagh, Stephen C. (2009) Voltage and current spectra for matrix power converters. Siam Journal on Applied Mathematics, 69 (5). pp. 1415-1437. ISSN 1415-1437

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Abstract

Matrix power converters are used for transforming one alternating-current power supply to another, with different peak voltage and frequency. There are three input lines, with sinusoidally varying voltages which are 120◦ out of phase one from another, and the output is to be delivered as a similar three-phase supply. The matrix converter switches rapidly, to connect each output line in sequence to each of the input lines in an attempt to synthesize the prescribed output voltages. The switching is carried out at high frequency and it is of practical importance to know

the frequency spectra of the output voltages and of the input and output currents. We determine in this paper these spectra using a new method, which has significant advantages over the prior default method (a multiple Fourier series technique), leading to a considerably more direct calculation. In particular, the determination of the input current spectrum is feasible here, whereas it would be a significantly more daunting procedure using the prior method instead.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/1014291
Keywords: matrix power converter, power electronics, Fourier spectrum
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Mathematical Sciences
Identification Number: 10.1137/080718863
Depositing User: Wharton, Dr Janet
Date Deposited: 26 Mar 2010 15:24
Last Modified: 04 May 2020 20:26
URI: https://eprints.nottingham.ac.uk/id/eprint/1259

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