DC Microgrid Simulation in MATLAB & Simulink | MATLABSolutions

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Introduction

DC microgrids are emerging as an efficient solution for integrating renewable energy sources, energy storage systems, and DC loads with minimal power conversion losses. MATLAB & Simulink provide a powerful platform to model, simulate, and analyze DC microgrid systems under various operating conditions. This project focuses on developing a comprehensive DC microgrid model including solar PV, battery storage, power electronic converters, and control strategies to ensure voltage regulation and power balance.

Methodology

  1. System Architecture Design
    Design the DC microgrid topology including PV source, battery energy storage system (BESS), DC bus, and DC loads.

  2. Component Modeling
    Model the solar PV system, battery, DC–DC converters (boost/buck), and DC loads using Simscape Electrical blocks.

  3. Control Strategy Implementation
    Implement voltage and current control loops using PI controllers to maintain DC bus voltage stability.

  4. Energy Management Logic
    Develop logic to manage power flow between PV, battery, and loads under varying irradiance and load conditions.

  5. Simulation & Performance Analysis
    Analyze DC bus voltage, power sharing, battery state of charge (SOC), and system stability in MATLAB/Simulink.