INTEQUI 20941
INSTITUTO DE INVESTIGACIONES EN TECNOLOGIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Nonlinear Voltage Control for Three-Phase DC-AC Converters in Hybrid Systems: An Application of the PI-PBC Method
Autor/es:
O. D. MONTOYA; F. M. SERRA; W. J. GIL.GONZÁLEZ; L. L. MARTÍN FERNÁNDEZ; J. C. HERNÁNDEZ
Revista:
Electronics
Editorial:
Multidisciplinary Digital Publishing Institute (MDPI)
Referencias:
Año: 2020 vol. 9 p. 1 - 21
ISSN:
2079-9292
Resumen:
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.
