Abstract
This paper presents a modeling and simulation of a grid-connected wind / PV hybrid power system under variable weather conditions. This system includes a wind turbine system, a PV system that shares a DC bus, and no battery. The paper contains an overview of the hybrid system and some previous studies; it presents a brief overview of each component used for this system. Signal distortion remains the great obstacle when connecting to the grid, so the system architecture and its proposed control are also introduced to reduce the distortion of electrical signals to an acceptable value. A simulation of the system’s operation with specific weather conditions in three different modes was performed using the MATLAB Simulink to describe the effect of these weather conditions on the production of electrical energy. Simulation results show how these weather conditions affect the operation of this hybrid system. An acceptable distortion value of the produced current signals has also been reached. These results present an evaluation of the dynamic performance of this system under the proposed working conditions. It also shows the energy exchange with the grid.
Highlights
The electric power production has increased significantly in recent years, due to the great need of energy in all countries and in various fields
Many research papers dealt with different forms of hybrid systems, we review the following: In Hussain Bellamily's paper [1], an alternative approach is proposed using Fuzzy Logic controllers optimized to control the PV-Wind system
MPPT Control To utilize the maximum power produced by the solar cell at all times, the regulation system has to be equipped with a maximum power point tracker (MPPT)
Summary
The electric power production has increased significantly in recent years, due to the great need of energy in all countries and in various fields. Many research papers dealt with different forms of hybrid systems, we review the following: In Hussain Bellamily's paper [1], an alternative approach is proposed using Fuzzy Logic controllers optimized to control the PV-Wind system. This method is based on the use of advanced control strategies for DC-DC and AC-DC regulators in the PV-wind standalone system. CONFIGURATION OF THE HYBRID PV/WIND TURBINE SYSTEM Figure 1 shows the configuration of the studied hybrid system This hybrid system contains a solar array, a boost converter, MPPT tracker, an inverter, turbine, DFIG and grid. The turbine captures wind power and transmits it through the shaft to the DFIG that generates electrical power with the chosen control method
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