A randomized voltage vector switching scheme for three-level power inverters

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

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Detail(s)

Original languageEnglish
Pages (from-to)94-100
Journal / PublicationIEEE Transactions on Power Electronics
Volume17
Issue number1
Publication statusPublished - Jan 2002

Abstract

In this paper, a feasibility study of a randomized space vector switching scheme for three-level inverters is reported. Based on the traditional space vector concept for pulse width modulation (PWM) inverter, the sequence of the space vector is randomized in this scheme. The overall vector, resulting from the randomization, is mathematically identical to that of the traditional space vector. It has been found that the randomized scheme can effectively spread the switching noise over a wide frequency range and at the same time keep the steady-state link capacitor voltage balanced. The proposed scheme has been implemented in real time in a digital controller and its features have been experimentally confirmed.

Research Area(s)

  • Random PWM methods, Space vector control, Three-level inverters

Citation Format(s)

A randomized voltage vector switching scheme for three-level power inverters. / Lee, C. K.; Hui, S. Y R; Chung, H. Shu-Hung et al.

In: IEEE Transactions on Power Electronics, Vol. 17, No. 1, 01.2002, p. 94-100.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review