An Optimal Neighborhood Energy Sharing Scheme Applied to Islanded DC Microgrids for Cooperative Rural Electrification

Khan, Rabia; Nasir, Mashood; Schulz, Noel N.

doi:10.1109/access.2023.3325769

Title: An Optimal Neighborhood Energy Sharing Scheme Applied to Islanded DC Microgrids for Cooperative Rural Electrification

Journal Article · 18 October 2023 · IEEE Access

DOI: https://doi.org/10.1109/access.2023.3325769 · OSTI ID:2203783

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Washington State Univ., Pullman, WA (United States)
Lahore University of Management Sciences (LUMS) (Pakistan)

Remote rural regions without electricity access suffer from energy poverty and reduced opportunities for the population. Microgrid architectures with optimal planning, design, and operation strategies are essential to meet rural inhabitants’ energy demands. DC microgrids based on photovoltaic panels and batteries are used for remote rural electrification. Centralized islanded systems have shortcomings, i.e., high distribution losses, less efficiency, and are comparatively more expensive than distributed microgrids. The distributed systems comprise independent household prosumers that may work independently or integrated. In this paper, the optimal power dispatch and power-sharing among spatially distributed nanogrids are performed to minimize distribution losses and maximize power electronic conversion efficiency in a typical islanded DC microgrid (IDCMG) for rural electrification. A branch flow model is proposed for modeling the power system with DC-DC converters. The optimal power flow is performed by relaxing the original non-convex constraints using second-order conic programming and is implemented on the modified IEEE-14 bus DC system. This generic framework can be used for optimal energy management in islanded microgrids using the regional solar irradiance information, climate situations, and energy requirements.

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Research Organization:: Washington State Univ., Pullman, WA (United States)

Sponsoring Organization:: USDOE Office of International Affairs (IA)

Grant/Contract Number:: IA0000025

OSTI ID:: 2203783

Alternate ID(s):: OSTI ID: 2203784; OSTI ID: 2418467

Journal Information:: IEEE Access, Vol. 11; ISSN 2169-3536

Publisher:: IEEECopyright Statement

Country of Publication:: United States

Language:: English

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24 POWER TRANSMISSION AND DISTRIBUTION
branch flow model
DC microgrids
optimal power flow
optimization
peer-to-peer sharing
rural electrification

Title: An Optimal Neighborhood Energy Sharing Scheme Applied to Islanded DC Microgrids for Cooperative Rural Electrification

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