Implementation of Exact Linearization Technique for Modeling and Control of DC/DC Converters in Rural PV Microgrid Application

Aliaga, Rodrigo; Rivera, Marco; Wheeler, Patrick; Munoz, Javier; Rohten, Jaime; Sebaaly, Fadia; Villalon, Ariel; Trentin, Andrew

Abstract

The inclusion of solar systems in rural microgrids is becoming increasingly important to supply energy for irrigation, electric motors, lighting and other. This paper presents the implementation of an exact linearization technique for the modeling and control of a DC/DC converter for use in a microgrid based on a photovoltaic (PV) generation system where non-linear converters are used. The basic advantage of this technique is in linearizing the converter model, thus allowing different operating points to be considered under different conditions. This paper presents a general description of the implemented microgrid topology. The exact linearization theory adapted for power converters is applied to both a Single-Ended Primary-Inductor converter (SEPIC) to extract energy from PV modules and to a Boost converter to increase the voltage. Experimental results are also presented to validate the effectiveness of the proposed control.

Citation

Aliaga, R., Rivera, M., Wheeler, P., Munoz, J., Rohten, J., Sebaaly, F., Villalon, A., & Trentin, A. (2022). Implementation of Exact Linearization Technique for Modeling and Control of DC/DC Converters in Rural PV Microgrid Application. IEEE Access, 10, 56925-56936. https://doi.org/10.1109/access.2022.3178425

• Journal Article Type: Article
• Acceptance Date: May 12, 2022
• Publication Date: 2022
• Deposit Date: Dec 9, 2024
• Publicly Available Date: Dec 11, 2024
• Journal: IEEE Access
• Electronic ISSN: 2169-3536
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 10
• Pages: 56925-56936
• DOI: https://doi.org/10.1109/access.2022.3178425
• Keywords: General Engineering; General Materials Science; General Computer Science
• Public URL: https://nottingham-repository.worktribe.com/output/8398373
• Publisher URL: https://ieeexplore.ieee.org/document/9783090