A Comparison of Different Renewable-Based DC Microgrid Energy Management Strategies for Commercial Buildings Applications

DC microgrid systems allow commercial buildings to use locally generated energy and achieve an optimal economy efficiently. Economical eco-friendly can be achieved by employing renewable sources. However, additional controllable sources, such as fuel cells, are required because of their reduced efficiency fluctuated nature. This storage supply transient power enhance stability. The functioning the its related implemented management strategy. In this paper, a comparison several reported strategies is fulfilled. considered EMSs include fuzzy logic control (FLC) strategy, state machine (SMC) equivalent consumption minimization strategy (ECMS), external maximization (EEMS). These compared in terms power-saving, system efficiency, quality specifications. overall results confirm ability EEMS (high 84.91% economic power-saving 6.11%) SMC (efficiency 84.18% with high 5.07%) for stationary applications, building applications. provide other advantages, which discussed detail paper.