Influence of Dynamic Efficiency in the DC Microgrid Power Balance

Hongwei Wu, Manuela Sechilariu and Fabrice Locment
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Hongwei Wu: Sorbonne University, Université de Technologie de Compiègne, EA7284 Avenues, 60203 Compiègne, France
Manuela Sechilariu: Sorbonne University, Université de Technologie de Compiègne, EA7284 Avenues, 60203 Compiègne, France
Fabrice Locment: Sorbonne University, Université de Technologie de Compiègne, EA7284 Avenues, 60203 Compiègne, France

Energies, 2017, vol. 10, issue 10, 1-17

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.

Keywords: DC microgrid; power balance; power security margin; dynamic converter efficiency; dynamic efficiency power control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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