Voltage regulation of an isolated DC microgrid with a constant power load: a passivity-based control design
Passivity-based nonlinear control for an isolated microgrid system is proposed in this paper. The microgrid consists of a photovoltaic array and a battery energy storage connected to a point of common converters, supplying a constant power load. The purpose of this control strategy is to maintain th...
- Autores:
-
Magaldi, Guillermo Luciano
Serra, Federico Martin
De Angelo, Cristian Hernan
Montoya, Oscar Danilo
Giral-Ramírez, Diego Armando
- Tipo de recurso:
- Fecha de publicación:
- 2021
- Institución:
- Universidad Tecnológica de Bolívar
- Repositorio:
- Repositorio Institucional UTB
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.utb.edu.co:20.500.12585/10390
- Acceso en línea:
- https://hdl.handle.net/20.500.12585/10390
https://doi.org/10.3390/electronics10172085
- Palabra clave:
- Direct current microgrids
Passivity-based control design
Hybrid systems
Interconnection
Damping assignment passivity-based control
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-nd/4.0/
| Summary: | Passivity-based nonlinear control for an isolated microgrid system is proposed in this paper. The microgrid consists of a photovoltaic array and a battery energy storage connected to a point of common converters, supplying a constant power load. The purpose of this control strategy is to maintain the output direct current voltage in its reference value under load variations, improving battery interaction. The system is represented by its state space averaged model and the proposed controller is designed using the interconnection and damping assignment strategy, which allows obtaining controller parameters while ensuring the closed-loop system stability. The unknown constant power load is estimated using an observer based on the energy function of the system. The behavior of the proposed control strategy is validated with simulation and experimental results |
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