Optimal Power Flow Management Control for Grid Connected Photovoltaic/Wind turbine/Diesel generator (GCPWD) Hybrid System with Batteries

This paper proposes a Optimal Power Flow Management control for Grid Connected Photovoltaic/Wind turbine/ Diesel generator (GCPWD) Hybrid System with hybrid storage system. The energy system having a photo voltaic (PV) panel, wind turbine (WT) and diesel generator (DG) for continuous power flow management. A diesel generator is added to ensure uninterrupted power supply due to the discontinuous nature of solar and wind resources. The developed Grid Connected Photovoltaic/Wind turbine/ Diesel generator (GCPWD) Hybrid System has been applied to supply continuous power to the AC/DC loads. Grid Connected Photovoltaic/Wind turbine/Diesel generator (GCPWD) Hybrid System technology is the key for an efficient use of distributed energy sources. PV and wind turbine are being major energy source enables the dc loads and AC loads to be connected directly to the DC bus and grid. A Grid Connected Photovoltaic/Wind turbine/ Diesel generator (GCPWD) hybrid systems three power sources (PV, wind turbine and diesel generator) and two power sink (AC&DC loads). In this paper, the power flow management algorithm has five modes of operation namely, the PV mode, wind turbine mode, battery bank mode, hybrid mode and diesel generator mode. A prototype for the proposed system was designed, implemented and tested using a controlled load result show a DC linked/AC linked hybrid PV/Wind Turbine/diesel generator energy sources for standalone applications. The conventional boost converter decreases the efficiency of the system during turn On/Off during this interval, all switches in the proposed work perform zero-current switching (ZCS) by resonant inductor at turn-on and zero-voltage switching (ZVS) by resonant capacitor at turn-off. This switching pattern can reduce the switching losses and increases the efficiency of energy conversion of energy sources experimental results show that the hybrid energy system can deliver energy in a standalone installation with an acceptable cost.

Keywords:

Photo Voltaic (PV) system, Wind turbine (WT) system, Diesel Generator (DG) Grid, Batteries,

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