DOI:
https://doi.org/10.14483/23448393.21303Published:
2024-01-17Issue:
Vol. 29 No. 1 (2024): January-AprilSection:
Electrical, Electronic and Telecommunications EngineeringDeduction and Application of the Average Switch Model in Power Electronic Devices for Simulation Time Reduction
Deducción y aplicación de modelo promedio del interruptor en dispositivos de electrónica de potencia para reducción del tiempo de simulación
Keywords:
Microgrids, Average Model, Power electronics, Inverter, Converter (en).Keywords:
electrónica de potencia, microrredes, modelo promedio, inversor, convertidor (es).Downloads
Abstract (en)
Context: Time is a crucial issue in the simulation of power electronics (PE) devices, even more when these elements are integrated into microgrids.
Method: This paper deals with the deduction of the average switch model for PE devices with the purpose of reducing simulation times. For doing this, the average model is only applied over the power switches of PE devices, not being applied over the complete topology as traditionally done. The proposed average model switch permits eliminating the ripple of voltage and currents but keeping the transient of the signals. The average model switch is derived for Boost and Buck converter switches and then generalized to power inverter switches. The proposed approach is validated using OpenModelica software.
Results: A system featuring a battery, a DC/DC converter, and an inverter connected to the power grid was simulated. A comparison was performed between a simulation that considers the power switches and a simulation that uses the proposed average model switch, the time simulation was reduced up to 99.788 %, which validates the proposed approach.
Conclusions: The proposed average switch model significantly reduces simulation times. This method offers a promising way to streamline power electronics device simulations, particularly in the context of microgrids and other applications where time efficiency is critical.
Abstract (es)
Contexto: El tiempo es un factor crucial en la simulación de dispositivos de electrónica potencia (EP), especialmente cuando estos elementos se integran en microredes.
Método: Este artículo deduce el modelo de interruptor promedio para dispositivos de EP con el propósito de reducir los tiempos de simulación. Para lograr esto, el modelo promedio se aplica únicamente a los interruptores de potencia de los dispositivos de EP, sin aplicarse a toda la topología como se hace tradicionalmente. El modelo promedio propuesto permite eliminar la oscilación de voltaje y corriente, pero conserva el comportamiento transitorio de las señales. El modelo promedio del interruptor se deriva para interruptores convertidores Boost y Buck y luego se generaliza a interruptores de inversores de potencia. El enfoque propuesto se valida utilizando el software OpenModelica.
Resultados: Se simuló un sistema que incluye una batería, un convertidor DC/DC y un inversor conectado a la red eléctrica. Se realizó una comparación entre una simulación que considera los interruptores de potencia y una simulación que utiliza el modelo promedio del interruptor propuesto, lo que redujo el tiempo de simulación hasta en un 99,788 %, validando así el modelo propuesto.
Conclusiones: El modelo de interruptor promedio propuesto reduce significativamente los tiempos de simulación. Este método ofrece una forma prometedora de agilizar las simulaciones de dispositivos de electrónica de potencia, especialmente en el contexto de microredes y otras aplicaciones donde la eficiencia en el tiempo es fundamental.
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Copyright (c) 2024 Santiago Benavides-Córdoba, Anamaría Romero-Carvajal, Nicolas Muñoz-Galeano, Juan Bernardo Cano-Quintero, Jesús María López-Lezama
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