A Bit-Stream based space vector modulator

Bradshaw, Jonathan, Madawala, Udaya, Patel, Nitish, & Vilathgamuwa, D. Mahinda (2010) A Bit-Stream based space vector modulator. In Proceedings of the 2010 International Power Electronics Conference (IPEC 2010), IEEE, Sapporo, Japan, pp. 855-861.

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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. Bit-Stream signals are inherently high frequency in nature, and as such some form of down sampling or modulating is essential to avoid excessive switching losses. This paper presents a novel three-phase space vector modulator, which is based on the Bit-Stream technique and suitable for standard three-phase inverter systems. The proposed modulator simultaneously converts a two phase reference to the three-phase domain and reduces switching frequencies to reasonable levels. The modulator consumes relatively few logic elements and does not require sector detectors, carrier oscillators or trigonometric functions. The performance of the modulator was evaluated using ModelSim. Results indicate that, subject to limits on the modulation index, the proposed modulator delivers a spread-spectrum output with total harmonic distortion comparable to standard space vector pulse width modulation techniques.

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2 citations in Scopus
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ID Code: 75395
Item Type: Conference Paper
Refereed: Yes
Keywords: Bit-Stream Control, Hysteretic Down-Sampling, Space Vector Modulation
DOI: 10.1109/IPEC.2010.5543334
ISBN: 9781424453948
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2010 IEEE
Deposited On: 21 Aug 2014 23:33
Last Modified: 22 Jun 2017 10:02

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