PV-Hydro-Battery Based Standalone Microgrid for Rural Electrification

This paper presents an implementation of a standalone single stage PV-hydro-battery based microgrid (MG) to meet the need of electrical energy in remote locations with renewable energy sources (RES). The SEIG (Self-Excited Induction Generator) based hydro and single stage solar PV (Photovoltaic) array with an energy storage, are used for electrification and for supplying the uninterruptible power to the critical loads. The proposed MG consists of only single VSC (Voltage Source Converter) and a bidirectional DC-DC converter (BDDC) for power management in standalone MG. The BDDC manages the storage battery charging and discharging currents and extracts the peak power from the solar PV array as well. The proposed control of VSC is based on the adaptive filter, which belongs to the family of LMS (Least Mean Square) and LMF (Least Mean of Fourth Order) algorithms. This control is able to provide load levelling, power management, harmonics mitigation, load balancing, and reactive power compensation. The efficacy of proposed single stage PV-hydro-battery based MG with an adantive control is assessed throuzh exnerimental results.

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