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Energies 2017, 10(10), 1563; doi:10.3390/en10101563

Influence of Dynamic Efficiency in the DC Microgrid Power Balance

Sorbonne University, Université de Technologie de Compiègne, EA7284 Avenues, 60203 Compiègne, France
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Received: 26 July 2017 / Revised: 24 September 2017 / Accepted: 29 September 2017 / Published: 11 October 2017
(This article belongs to the Section Energy Fundamentals and Conversion)
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Abstract

This work aims to enhance the ability of a direct current (DC) microgrid to guarantee the power supply without interruptions by considering the dynamic efficiency of each power converter in the power balance. Previous works show that the converter efficiency varies according to the instant power. If the variable efficiency of the converters in the microgrid is not considered, some extra power must be considered to compensate the losses in the power balance. However, this leads to a waste of available energy and unnecessary load shedding. The work presented here includes the power converters’ dynamic efficiencies in the control of a DC microgrid to improve its performance. MATLAB/Simulink simulations were carried out and the results show that the dynamic efficiency can reduce the load shedding and improve the total DC microgrid efficiency. View Full-Text
Keywords: DC microgrid; power balance; power security margin; dynamic converter efficiency; dynamic efficiency power control DC microgrid; power balance; power security margin; dynamic converter efficiency; dynamic efficiency power control
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Wu, H.; Sechilariu, M.; Locment, F. Influence of Dynamic Efficiency in the DC Microgrid Power Balance. Energies 2017, 10, 1563.

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