Multi-Channel-Based Microgrid for Reliable Operation and Load Sharing

Ali Elrayyah and Sertac Bayhan
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Ali Elrayyah: Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Doha 34110, Qatar
Sertac Bayhan: Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Doha 34110, Qatar

Energies, 2019, vol. 12, issue 11, 1-13

Abstract: This paper presents a novel approach to distribute available power among critical and non-critical loads in microgrids. The approach is based on supplying power over a number of channels with distinguishable frequencies where loads could be served by these channels according to their level of importance. The multi-channel scheme not only offers flexibility to supply loads but also to share power among adjacent microgrids. The control system, which can deal with multi-channel scheme, is presented and different applications that can be offered whereby are discussed. The number of channels that can be supplied by any inverter is determined based on the parameters of the used filter. Moreover, the power exchange efficiencies over the active channels at various power levels are determined and approximated formulas for quick evaluation are presented. To verify the proposed solution performance, simulation and experimental studies were performed. The obtained results demonstrate the effectiveness of using multi-channel scheme for power exchange in microgrid and also confirm the accuracy of the provided formula related to power exchange efficiencies.

Keywords: multi-channel power exchange; microgrid; power electronics-based source/loads; distributed generators; critical loads; uninterruptable power supply; power exchange efficiency (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: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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