A Comprehensive Review of Stand-Alone Hybrid Microgrid Systems for Agricultural Irrigation Using Solar and Diesel Energy

The review conducted an in-depth investigation of current studies about hybrid microgrid systems which combine solar photovoltaic (PV) energy with diesel generators and battery storage systems by focusing on their use in agricultural irrigation. The literature demonstrates that hybrid microgrids provide a dependable and environmentally friendly solution which replaces traditional diesel power systems in rural areas that lack access to electrical grids. The primary energy source for solar photovoltaic systems has become diesel generators because of their widespread availability and decreasing operational costs but diesel generators function as power backup systems which ensure continuous electricity delivery during times when renewable energy sources are not available. The battery energy storage systems function as essential components which help to manage solar power fluctuations while they improve system reliability and increase operational efficiency. The development of energy management systems together with new MPPT methods and optimization software solutions has enabled renewable energy systems to operate more efficiently while decreasing their need for fossil fuels and greenhouse gas emissions. The review identifies ongoing problems which include two separate issues from high startup expense to battery performance decline and difficulties in system management and battery testing in actual conditions. The research needs to develop agriculture-based load modeling methods together with field research and inexpensive hybrid microgrid systems to help scientists develop sustainable agricultural irrigation systems.  

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