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Digital Sinusoidal PWM Generation for a Micro-controller based Single-Phase Inverter

Matthew Christian Trigg*, Chemmangot V.Nayar**

*Research Engineer ,Department of Electrical and Computer Engineering ,Curtin University of Technology,perth,Australia.

**Professor,Department of Electrical and Computer Engineering ,Curtin University of Technology,perth,Australia.

Periodicity:October - December'2007
DOI : https://doi.org/10.26634/jee.1.2.432

Abstract

Nowadays, Digital Sinusoidal PWMs are playing a major role in the generation of pure sinusoidal waveforms using micro-controller based inverters. The types of DSPWMs that can be generated depend on the micro-controller hardware resources and are therefore limited, but provide performance benefits not possible with an analogue controller. For instance, digital controllers offer a programmable solution and therefore more flexibility, as advanced algorithms and additional features can be added to the system in software instead of hardware. Digital controllers are also less sensitive to environmental conditions and show precise behaviour compared to their analogue counterparts. In this paper, the theory of the three major DSPWMs are presented, including mathematical models and simulation results. The PWM patterns required to generate these DSPWMs and the benefits and limitations of each are examined.

Keywords

DC-AC power conversion, Micro-controllers, Pulse width modulation.

How to Cite this Article?

Matthew Christian Trigg and Chemmangot V.Nayar (2007). Digital Sinusoidal PWM Generation for a Micro-controller based Single-Phase Inverter. i-manager’s Journal on Electrical Engineering, 1(2), Oct-Dec 2007, Print ISSN 0973-8835, E-ISSN 2230-7176, pp. 1-13. https://doi.org/10.26634/jee.1.2.432

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