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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Taha, Mohammed Qasim
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Control & Systems Engineering Electrical & Electronics Engineering

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Early degradation factors of solar 33 kV grid connected power plant, a comparative study Elhassene, Issa Cheikh; El Heiba, Bamba; Taha, Mohammed Qasim; Mahmoud, Teyeb Med; Aoulmi, Zoubir; Youm, Issakha; Mahmoud, Abdelkader
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 1: March 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i1.pp442-453

Abstract

This paper identifies and analyses early degradation mechanisms observed in photovoltaic (PV) modules of power plants over 7 years of operation on the coast power grid in Mauritania. Performance degradation takes place due to several reasons such as material degradation following dust accumulation, high temperature, and humidity. Also, mismatch of electric power parameters such as increasing loads above projected values of the plant. Therefore, this paper analyses and studies the degradation in four phases. First, the visual inspection detects the degradation of materials and defects such as the presence of dust, cracks, browning (discoloration), and connection corrosion. The second phase proposes a mathematical model to calculate the early degradation rate (DR) of different components, such as short circuit current (Isc), open circuit voltage (VOC), the maximum yield power (Pmax), and the fill factor (FF) of the PV module. The third phase is a MATLAB modeling of the measured real-time data of the operating PV system to test Power versus voltage curves (with and without degradation) to examine the presence of failure of PV modules. Finally, compare the evolution of real-time production data for three measured years (2015, 2016, and 2017) with the simulation curves of this study.
Tracking technique for the sudden change of PV inverter load Saeed, Amer Tayes; Taha, Mohammed Qasim; Ahmed, Abdullah Khalid
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 10, No 4: December 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (665.842 KB) | DOI: 10.11591/ijpeds.v10.i4.pp2076-2083

Abstract

Many power electronics applications require a power calculation in the control system. To get a suitable output, engineers need to control the process and regulate the power exchange with the grid. Since real and reactive power calculations are so crucial a topic, a novel control strategy for a single-phase photovoltaic (PV) inverter has been developed. Therefore, Direct power control (DPC) and a single-phase three-level space vector pulse width modulation (SVPWM) combine as a control and modulation system. In this paper, predictive real and reactive power control and SVPWM method are conferred in the inner loop. A voltage controller based on a proportionalintegral (PI) scheme is used in the outer loop to acquire constant output voltage and provide power refers to the DPC. The performance of the proposed method is verified by using MATLAB/SIMULINK.
Co-Authors Ahmed, Abdullah Khalid Aoulmi, Zoubir El Heiba, Bamba Elhassene, Issa Cheikh Mahmoud, Abdelkader Mahmoud, Teyeb Med Saeed, Amer Tayes Youm, Issakha