ABSTRACT:
In recent days, the use of renewable energy like wind
and solar energy is necessary to meet the load demand. It is useful for power
generation due to their unlimited existence and environmental friendly nature.
This paper deals with the energy management of wind and solar hybrid generation
system. Photovoltaic (PV) array, wind turbine, and battery storage are
connected via a common current source interface multiple-input DC-DC converter.
The Fuzzy logic controller ensures the power management between intermittent renewable
energy generation, energy storage, and grid. In order to obtain the maximum
power, variable speed control is employed for the wind turbines, and maximum
power point tracking (MPPT) algorithm is applied for the photovoltaic system.
The grid interface inverter directs the energy drawn from the wind turbine and
PV array into the grid by maintaining common dc voltage constant. Simulation
analysis of the entire control scheme is carried out using MATLAB Simulink. The
simulation results show the control performance and dynamic behavior of the
fuzzy controlled photovoltaic/ wind hybrid system.
KEYWORDS:
1.
Renewable energy
2.
Solar energy
3.
Wind energy
4.
Hybrid system
5.
Energy management
6.
Fuzzy logic controller
SOFTWARE:
MATLAB/SIMULINK
CONCLUSION:
In
this paper, a fuzzy logic controller based solar/ wind hybrid system is
proposed for energy management. The effectiveness of the MPPT algorithm is
obtained from the proposed hybrid system. DC link voltage is maintained and regulated
using the Luo converter. The Luo converter has the potentiality to remove the
high-frequency current harmonics in the wind generator. It improves the voltage
gain and power density. Using the Fuzzy logic controller (FLC) in the hybrid
system reduces the harmonics and the dissipation of power is low. Thus, the
performance of the hybrid system increases system reliability, power
availability, quality, and operational efficiency. Simulation results obtained
from Matlab/Simulink shows that this proposed hybrid system becomes a viable
way to produce uninterrupted electrical energy, especially in rural areas.
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