Bit-stream-based space vector modulators

Bradshaw, J., Madawala, Udaya K., Patel, N., & Vilathgamuwa, D. Mahinda (2012) Bit-stream-based space vector modulators. IET Power Electronics, 5(2), 205-214 .

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Bit-stream-based control, which uses one bit wide signals to control power electronics applications, is a new approach for controller design in power electronic systems. This study presents a novel family of three-phase space vector modulators, which are based on the bit-stream technique and suitable for three-phase inverter systems. Each of the proposed modulators simultaneously converts a two-phase reference to the three-phase domain and reduces switching frequencies to reasonable levels. The modulators do not require carrier oscillators, trigonometric functions or, in some cases, sector detectors. A complete three-phase modulator can be implemented in as few as 102 logic elements. The performance of the proposed modulators is compared through simulation and experimental testing of a 6 kW, three-phase DC-to-AC inverter. Subject to limits on the modulation index, the proposed modulators deliver spread-spectrum output currents with total harmonic distortion comparable to a standard carrier-based space vector pulse width modulator.

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3 citations in Web of Science®
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ID Code: 72294
Item Type: Journal Article
Refereed: Yes
Keywords: DC-AC power convertors, PWM invertors, Control system synthesis, Field programmable gate arrays, Harmonic distortion, Power electronics, Switching convertors
DOI: 10.1049/iet-pel.2010.0392
ISSN: 1755-4535
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: © 2012 The Institution of Engineering and Technology
Deposited On: 02 Jun 2014 03:26
Last Modified: 14 Aug 2014 23:36

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