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Article

Nonlinear Voltage Control for Three-Phase DC-AC Converters in Hybrid Systems: An Application of the PI-PBC Method

1
Automatic Control Laboratory (LCA), Facultad de Ingeniería y Ciencias Agropecuarias, Universidad Nacional de San Luis, Villa Mercedes, San Luis 5730, Argentina
2
Facultad de Ingeniería, Universidad Distrital Francisco José de Caldas, Carrera 7 No. 40B-53, Bogotá D.C. 11021, Colombia
3
Laboratorio Inteligente de Energía, Universidad Tecnológica de Bolívar, km 1 vía Turbaco, Cartagena 131001, Colombia
4
Department of Electrical Engineering, University of Jaén, Campus Lagunillas s/n, Edificio A3, 23071 Jaén, Spain
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(5), 847; https://doi.org/10.3390/electronics9050847
Received: 17 April 2020 / Revised: 14 May 2020 / Accepted: 18 May 2020 / Published: 20 May 2020
(This article belongs to the Special Issue Grid-Connected Renewable Energy Sources)
In this paper, a proportional-integral passivity-based controller (PI-PBC) is proposed to regulate the amplitude and frequency of the three-phase output voltage in a direct-current alternating-current (DC-AC) converter with an LC filter. This converter is used to supply energy to AC loads in hybrid renewable based systems. The proposed strategy uses the well-known proportional-integral (PI) actions and guarantees the stability of the system by means of the Lyapunov theory. The proposed controller continues to maintain the simplicity and robustness of the PI controls using the Hamiltonian representation of the system, thereby ensuring stability and producing improvements in the performance. The performance of the proposed controller was validated based on simulation and experimental results after considering parametric variations and comparing them with classical approaches. View Full-Text
Keywords: hybrid system; voltage source converter; passivity-based control; proportional-integral control; voltage regulation hybrid system; voltage source converter; passivity-based control; proportional-integral control; voltage regulation
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MDPI and ACS Style

Serra, F.M.; Fernández, L.M.; Montoya, O.D.; Gil-González, W.; Hernández, J.C. Nonlinear Voltage Control for Three-Phase DC-AC Converters in Hybrid Systems: An Application of the PI-PBC Method. Electronics 2020, 9, 847. https://doi.org/10.3390/electronics9050847

AMA Style

Serra FM, Fernández LM, Montoya OD, Gil-González W, Hernández JC. Nonlinear Voltage Control for Three-Phase DC-AC Converters in Hybrid Systems: An Application of the PI-PBC Method. Electronics. 2020; 9(5):847. https://doi.org/10.3390/electronics9050847

Chicago/Turabian Style

Serra, Federico M., Lucas M. Fernández, Oscar D. Montoya, Walter Gil-González, and Jesus C. Hernández. 2020. "Nonlinear Voltage Control for Three-Phase DC-AC Converters in Hybrid Systems: An Application of the PI-PBC Method" Electronics 9, no. 5: 847. https://doi.org/10.3390/electronics9050847

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