A model-based strategy for an efficient power supply control used in a wireless sensor network is presented. The strategy, based on Pulse-Skipping Modulation, regulates the current charging a battery, delivered by a photovoltaic source, resulting in an accurate current regulation and highly efficient power management. The strategy is implemented on a microcontroller unit and compensates for the microcontroller self-absorbed current. The modulation signal is generated through a full software interface, reducing the requirement for external components. Experimental validations, performed on a charger prototype by using a laboratory photovoltaic device simulator, proved that both regulation accuracy, regulation resolution and converter efficiency achieved are superior to the classic Pulse-Width Modulation. The approach results in a simple practical implementation, carries over the advantages of an up-to-date model for the photovoltaic device, and serves the auxiliary purpose of using the photovoltaic source as an instantaneous solar irradiance sensor.

Model-Based Power Management for Smart Farming Wireless Sensor Networks / Corti F.; Laudani A.; Lozito G.M.; Reatti A.; Bartolini A.; Ciani L.. - In: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS. I, REGULAR PAPERS. - ISSN 1549-8328. - ELETTRONICO. - 69:(2022), pp. 2235-2245. [10.1109/TCSI.2022.3143698]

Model-Based Power Management for Smart Farming Wireless Sensor Networks

Corti F.;Lozito G. M.;Reatti A.;Bartolini A.;Ciani L.
2022

Abstract

A model-based strategy for an efficient power supply control used in a wireless sensor network is presented. The strategy, based on Pulse-Skipping Modulation, regulates the current charging a battery, delivered by a photovoltaic source, resulting in an accurate current regulation and highly efficient power management. The strategy is implemented on a microcontroller unit and compensates for the microcontroller self-absorbed current. The modulation signal is generated through a full software interface, reducing the requirement for external components. Experimental validations, performed on a charger prototype by using a laboratory photovoltaic device simulator, proved that both regulation accuracy, regulation resolution and converter efficiency achieved are superior to the classic Pulse-Width Modulation. The approach results in a simple practical implementation, carries over the advantages of an up-to-date model for the photovoltaic device, and serves the auxiliary purpose of using the photovoltaic source as an instantaneous solar irradiance sensor.
2022
69
2235
2245
Goal 7: Affordable and clean energy
Corti F.; Laudani A.; Lozito G.M.; Reatti A.; Bartolini A.; Ciani L.
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Descrizione: IEEE_TCS_2022
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1261247
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