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Published in:
2021 | OriginalPaper | Chapter
A Comparative Study Between a Unipolar and a Bipolar PWM Used in Inverters for Photovoltaic Systems
Authors : J. Blaacha, R. Aboutni, A. Aziz
Published in: Proceedings of the 2nd International Conference on Electronic Engineering and Renewable Energy Systems
Publisher: Springer Singapore
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Abstract
In this paper, a study of two PWM commands is established, the bipolar PWM and the unipolar one used to control inverters for photovoltaic applications. These two commands will go through the power electronic device that helps transforming a DC power generated by a PV panel into an AC power: The inverter. In this work, a single-phase H-bridge inverter is used, the output will be an inductive load. The four inverter’s Mosfets will be controlled by a driver IC which will receive the PWM signals in order to perform the switching operations. The objective is to get a clean sinusoidal waveform as an output, for this purpose a chosen filter will be added to the circuit’s output in order to eliminate as much harmonics as possible.