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Digital implementation of a new PWM switching scheme for cascaded multilevel voltage source inverter

UNSPECIFIED (2005) Digital implementation of a new PWM switching scheme for cascaded multilevel voltage source inverter. Elektrika, 7 (2). pp. 36-46. ISSN 0128-4428

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Abstract

This work proposes a new switching scheme for the cascaded multilevel inverter that can be suitably implemented using digital technique. Unlike other schemes, the proposed method is based on the symmetric regular sampling unipolar PWM with a single carrier and multiple modulating signals. Non-transcendental trigonometric equations that define the switching instants of the multilevel inverter are derived. This algorithm is implemented digitally using a low-cost fixedpoint microcontroller on an experimental five-level cascaded inverter test-rig.

Item Type:Article
Uncontrolled Keywords:switching scheme, cascaded multilevel inverter, symmetric regular sampling unipolar PWM
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:8979
Deposited By: Ms Zalinda Shuratman
Deposited On:15 Jun 2009 02:39
Last Modified:02 Jun 2010 01:58

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