Grid-Connected PV-Wind-Battery based Multi-InputTransformer Coupled Bidirectional DC-DCConverter for household Applications - 2016

PROJECT TITLE :

Grid-Connected PV-Wind-Battery based Multi-InputTransformer Coupled Bidirectional DC-DCConverter for household Applications - 2016

ABSTRACT:

During this paper, a management strategy for power flow management of a grid-connected hybrid photovoltaic (PV)-wind-battery-based system with an economical multi-input transformer-coupled bidirectional dc-dc converter is presented. The proposed system aims to satisfy the load demand, manage the power flow from completely different sources, inject the surplus power into the grid, and charge the battery from the grid as and when needed. A transformer-coupled boost [*fr1]-bridge converter is used to harness power from wind, while a bidirectional buck-boost converter is used to harness power from PV together with battery charging/discharging control. A single-phase full-bridge bidirectional converter is employed for feeding ac loads and interaction with the grid. The proposed converter architecture has reduced number of power conversion stages with less component count and reduced losses compared with existing grid-connected hybrid systems. This improves the potency and also the reliability of the system. Simulation results obtained using MATLAB/Simulink show the performance of the proposed control strategy for power flow management underneath various modes of operation. The effectiveness of the topology and therefore the efficacy of the proposed control strategy are validated through detailed experimental studies to demonstrate the capability of the system operation in different modes.

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