Abstract
A hybrid microgrid is composed of combination of the AC and DC grid which are interlined with bidirectional converter. To avoid the multiple conversion and more reliable the proposed hybrid microgrid is designed by taking diesel generators, Photovoltaic cell, induction generators and battery bank. It is connected to the utility grid in normal operating mode. During fault condition, it should disconnect and shift into island operation mode. This paper proposes a standalone hybrid generation system, fed by induction generator which is run with a battery banks, solar power, and storage battery. Hybrid microgrid is an excellent solution for electrification of remote rural areas where the grid extension is very difficult and not economical. Practically it has been seen that most of the isolated grid is powered by the diesel generation system, such systems has several problems like high cost fuel with extra transportation cost and making more pollution to the environment .To make pollution free environment ,an eco-friendly hybrid microgrid system has designed. It maintains the power quality in steady state condition. During this transient condition, the voltage and frequency of the microgrid may change rapidly due to low inertia present in microgrid. Therefore, local voltage and frequency control is one of the major challenges in islanded condition. To achieve this particle swarm optimization (PSO) algorithm is implemented in the proposed microgrid which is verified by MATLAB Simulink.
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