Nonlinear voltage regulation strategy for a fuel cell/supercapacitor power source system
"The main purpose of this work is to model and control a fuel cell/supercapacitor power source system to feed a DC-bus with a constant output voltage despite load changes. The fuel cell is modeled as a nonlinear current-dependent voltage source meanwhile, the supercapacitor is represented as an...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2018 |
| País: | México |
| Institución: | Instituto Potosino de Investigación Científica y Tecnológica |
| Repositorio: | Repositorio Institucional del IPICYT |
| OAI Identifier: | oai:ipicyt.repositorioinstitucional.mx:1010/2124 |
| Acceso en línea: | http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2124 |
| Access Level: | acceso embargado |
| Palabra clave: | info:eu-repo/classification/Autor/Fuel cell info:eu-repo/classification/Autor/Supercapacitor info:eu-repo/classification/Autor/DC-DC power converter info:eu-repo/classification/Autor/Nonlinear control systems info:eu-repo/classification/cti/7 |
| Sumario: | "The main purpose of this work is to model and control a fuel cell/supercapacitor power source system to feed a DC-bus with a constant output voltage despite load changes. The fuel cell is modeled as a nonlinear current-dependent voltage source meanwhile, the supercapacitor is represented as an ideal capacitor. The power converters are modeled using a average model techniques. Furthermore, the proposed nonlinear state feedback control method is based on backstepping techniques and Lyapunov stability analysis to ensure that error signals converge to zero. A load estimator is designed using Immersion-Invariance (I&I) theory to track load changes through available measurements. Finally, simulation results show that the proposed control scheme stabilizes the system when step changes are applied to the load." |
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