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<p>Residential microgrid design faces complex challenges, especially in effectively sizing and integrating multiple energy sources to meet growing electricity demand while ensuring reliability. This study proposes a sustainable and economically viable microgrid solution tailored for an urban area in southern India, where energy reliability is a pressing concern. The system combines solar photovoltaic (SPV), wind energy systems (WES), battery energy storage system (BESS), and a diesel generator (DG) to fulfill residential load requirements efficiently. The techno-economic viability of various configurations is assessed using NREL’s HOMER software, identifying an optimal setup that delivers a cost of energy (CoE) of INR 10/kWh and a renewable energy share exceeding 80%, with minimal dependence on both grid and diesel power. To further enhance performance, a custom energy management system (EMS) based on a rule-based control strategy that accounts for battery state of charge (SoC) is implemented. This EMS prioritizes renewable utilization while reducing reliance on external power sources. MATLAB-based simulations under diverse load and generation scenarios confirm the system’s robustness and adaptability. Additionally, a laboratory-scale prototype is developed to test real-time operation in grid-connected mode. Experimental results show a 28% decrease in grid power consumption, a 15% enhancement in battery usage efficiency, and a 22% overall cost reduction, all while maintaining uninterrupted power supply in 96% of scenarios tested. The outcomes underscore the practicality and cost-effectiveness of the proposed microgrid, supporting its application in real-world environments with similar energy demands and challenges.</p>

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Design and implementation of energy management system for optimal hybrid residential microgrid

  • 期刊论文

  • 发表日期：

    2025年11月26日

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  • M. K. Nesihath,
  • K. Nafeesa,
  • Sasidharan Sreedharan,
  • Sheik Mohammed Sulthan,
  • Rahul Satheesh,
  • Mohan Lal Kolhe

摘要

Residential microgrid design faces complex challenges, especially in effectively sizing and integrating multiple energy sources to meet growing electricity demand while ensuring reliability. This study proposes a sustainable and economically viable microgrid solution tailored for an urban area in southern India, where energy reliability is a pressing concern. The system combines solar photovoltaic (SPV), wind energy systems (WES), battery energy storage system (BESS), and a diesel generator (DG) to fulfill residential load requirements efficiently. The techno-economic viability of various configurations is assessed using NREL’s HOMER software, identifying an optimal setup that delivers a cost of energy (CoE) of INR 10/kWh and a renewable energy share exceeding 80%, with minimal dependence on both grid and diesel power. To further enhance performance, a custom energy management system (EMS) based on a rule-based control strategy that accounts for battery state of charge (SoC) is implemented. This EMS prioritizes renewable utilization while reducing reliance on external power sources. MATLAB-based simulations under diverse load and generation scenarios confirm the system’s robustness and adaptability. Additionally, a laboratory-scale prototype is developed to test real-time operation in grid-connected mode. Experimental results show a 28% decrease in grid power consumption, a 15% enhancement in battery usage efficiency, and a 22% overall cost reduction, all while maintaining uninterrupted power supply in 96% of scenarios tested. The outcomes underscore the practicality and cost-effectiveness of the proposed microgrid, supporting its application in real-world environments with similar energy demands and challenges.