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

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) inverters, the sequence of the space vector is randomized in this scheme. The overall vector, resulti...

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Published in:	IEEE transactions on power electronics 2002-01, Vol.17 (1), p.94-100
Main Authors:	Lee, C.K., Hui, S.Y.R., Shu-HungChung, H., Shrivastava, Y.
Format:	Article
Language:	English
Subjects:	Acoustic applications Acoustic noise Capacitors Electric potential Electrical equipment Electronics Inverters Mathematical analysis Power system harmonics Pulse duration modulation Pulse inverters Pulse width modulation Pulse width modulation inverters Space vector pulse width modulation Switching Switching frequency Vectors (mathematics) Voltage
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container_title	IEEE transactions on power electronics
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creator	Lee, C.K. Hui, S.Y.R. Shu-HungChung, H. Shrivastava, Y.
description	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) inverters, 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.
doi_str_mv	10.1109/63.988674
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source	IEEE Electronic Library (IEL) Journals
subjects	Acoustic applications Acoustic noise Capacitors Electric potential Electrical equipment Electronics Inverters Mathematical analysis Power system harmonics Pulse duration modulation Pulse inverters Pulse width modulation Pulse width modulation inverters Space vector pulse width modulation Switching Switching frequency Vectors (mathematics) Voltage
title	A randomized voltage vector switching scheme for three-level power inverters
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