Design, Control and Performance Analysis of a Grid-Connected Hybrid System | ||||
| The Egyptian International Journal of Engineering Sciences and Technology | ||||
| Article 3, Volume 24, EIJEST, Vol. 24, 2018, February 2018, Page 18-26 PDF (1.17 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eijest.2018.97217 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| S Mohamed* | ||||
| Department of Electrical Engineering, Faculty of Engineering, South Valley University, Qena, postcode 83523, Egypt | ||||
| Abstract | ||||
| The present paper proposes a dynamic modeling and control of grid-connected PV/Wind hybrid system. The photovoltaic and wind energy conversion systems are integrated into main AC bus in order to increase system effectiveness. The PV system is equipped with DC-DC boost converter and three phase PWM inverter. The wind energy conversion system includes doubly fed induction generator (DFIG) based variable speed wind turbine, rotor side converter (RSC) and grid side converter (GSC). The modelling, analysis and simulation of the hybrid system has been implemented using MATLAB/Simulink environment. The maximum power point tracking (MPPT) technique is applied for both photovoltaic and wind systems to capture the maximum power under varying climatic conditions. The dynamic performance of the proposed hybrid system is analyzed under different environmental conditions such as changes of solar irradiation and wind speed. The simulation results show that the voltage at point of common coupling (PCC) maintains constant. Morever, the current of grid side is in sinusoidal and alternative form. This grid side current is synchronized with grid side voltage and injected power to grid is around power delivered by the hybrid system. | ||||
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