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Among all renewable energy sources, solar cells are considered the most popular solution for a clean source of energy and have a wide range of applications from few watts to Megawatt industrial and domestic loads. Building a precise mathematical model based on nonlinear equations for solar cells as well as photovoltaic (PV) modules is an essential issue for reasonable performance assessment, control and optimal operation of PV energy systems. In the current study, a novel optimization algorithm, Tree Growth Algorithm (TGA), is applied for accurate and efficient extraction of the unknown solar cell and PV module parameters. TGA is applied for estimating the unidentified parameters of PV models. Single diode model (SDM), double diode model (DDM) and three diode model (TDM) are investigated in the mathematical models of both solar cells and PV modules. The obtained results from the application of TGA to achieve this objective are compared with different algorithms reported in the literature. Moreover, the results demonstrated that the proposed algorithm of TGA superior to other reported methods. The good matching of the I-V characteristic curve of the computed parameters with those of the measured data from the manufacturer’s PV modules/cells datasheet proved that the proposed TGA may function as a competitor to the methods provided in literature for parameters’ identification of PV of solar cells.
Ahmed A. Zaki Diab; Hamdy M. Sultan; Raseel Aljendy; Ameena Saad Al-Sumaiti; Masahito Shoyama; Ziad M. Ali. Tree Growth Based Optimization Algorithm for Parameter Extraction of Different Models of Photovoltaic Cells and Modules. IEEE Access 2020, 8, 119668 -119687.
AMA StyleAhmed A. Zaki Diab, Hamdy M. Sultan, Raseel Aljendy, Ameena Saad Al-Sumaiti, Masahito Shoyama, Ziad M. Ali. Tree Growth Based Optimization Algorithm for Parameter Extraction of Different Models of Photovoltaic Cells and Modules. IEEE Access. 2020; 8 ():119668-119687.
Chicago/Turabian StyleAhmed A. Zaki Diab; Hamdy M. Sultan; Raseel Aljendy; Ameena Saad Al-Sumaiti; Masahito Shoyama; Ziad M. Ali. 2020. "Tree Growth Based Optimization Algorithm for Parameter Extraction of Different Models of Photovoltaic Cells and Modules." IEEE Access 8, no. : 119668-119687.
The set of characteristics that determine the power quality (PQ) can be used to describe the state and efficiency of the power supply system in terms of the influence of electromagnetic interference. The impact of electromagnetic interference on electrical equipment is manifested in the reduction of uptime, additional losses of active power, data loss, etc. The most common sources of interference in modern conditions are consumers with non-linear volt-ampere characteristics. This type of electrical receivers creates a distortion of the current and voltage waveform. In view of the widespread use of these power consumers in daily life and industry, special attention should be paid to the problems of harmonic distortion. This article presents the results of measurements and analysis of the quality of electricity, and also shows the effect of applying an active filter (AF) to ensure the quality of electricity in the distribution network (66/20 kV) of the city of Lattakia in the Syrian Arab Republic. The definition of the optimal capacitance of the AF dc link using the particle swarm method is given in order to minimize the total non- sinusoidal current and voltage in the studied electrical network.
R. R. Nasyrov; R. Aljendy; T. Kherbek. Power quality assurance in the electrical network of the Syrian Arab Republic, using the active power filter. Power engineering: research, equipment, technology 2020, 22, 18-27 .
AMA StyleR. R. Nasyrov, R. Aljendy, T. Kherbek. Power quality assurance in the electrical network of the Syrian Arab Republic, using the active power filter. Power engineering: research, equipment, technology. 2020; 22 (1):18-27.
Chicago/Turabian StyleR. R. Nasyrov; R. Aljendy; T. Kherbek. 2020. "Power quality assurance in the electrical network of the Syrian Arab Republic, using the active power filter." Power engineering: research, equipment, technology 22, no. 1: 18-27.
In recent years, modular multilevel converters (MMC) are becoming popular in the distribution and transmission of electrical systems. The multilevel converter suffers from circulating current within the converter that increases the conduction loss of switches and increases the thermal stress on the capacitors and switches’ IGBTs. One of the main solutions to control the circulating current is to keep the capacitor voltage balanced in the MMC. In this paper, a new hybrid control algorithm for the cascaded modular multilevel converter is presented. The Harris hawk’s optimization (HHO) and Atom search optimization (ASO) are used to optimally design the controller of the hybrid MMC. The proposed structure of modular multilevel inverters allows effective operation, a low level of harmonic distortion in the absence of output voltage filters, a low switching frequency, and excellent flexibility to achieve the requirements of any voltage level. The effectiveness of the proposed controller and the multilevel converter has been verified through testing with the application of the MMC-static synchronous compensator (STATCOM). The stability of the voltage capacitors was monitored with balanced and unbalanced loads on the studied network.
Ahmed A. Zaki Diab; Terad Ebraheem; Raseel Aljendy; Hamdy M. Sultan; Ziad M. Ali. Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators. Applied Sciences 2020, 10, 2490 .
AMA StyleAhmed A. Zaki Diab, Terad Ebraheem, Raseel Aljendy, Hamdy M. Sultan, Ziad M. Ali. Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators. Applied Sciences. 2020; 10 (7):2490.
Chicago/Turabian StyleAhmed A. Zaki Diab; Terad Ebraheem; Raseel Aljendy; Hamdy M. Sultan; Ziad M. Ali. 2020. "Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators." Applied Sciences 10, no. 7: 2490.
Renewable energy sources have been expected to be promising alternative energy sources in the future. Renewable energy sources can bring new challenges and problems when connected to the power grid. The basic elements of the PV– wind generating system are the DC–DC Boost Converter and the three-phase inverter whose role is to convert DC into AC having the same amplitude, frequency, and phase of the grid, to which it will be connected. Also, the injected power into an electric grid affects the power quality. Consequently, the impact of the integration of renewable power plants into the electric network corresponding to the level of harmonics and its propagation, besides the initial harmonics resulting from the nonlinear loads itself, has been presented in this paper. Firstly, the size of the distributed generators (DG) has been determined using the Salp Swarm algorithm (SSA) in order to improve the voltage profile and reduce the lack of generation. In addition, a techno-economic feasibility study of PV and wind power plant was evaluated using RETScreen program. Secondly, Active Power Filter (APF) has been used for power quality (PQ) improvement, where the controller for APF has been designed to improve the voltage profile and compensate reactive power and harmonics. Optimal parameters of APF (L-C) are determined using particle swarm optimization (PSO) to minimize the total harmonics distortion (THD) in the studied system. Furthermore, a comprehensive comparison of the photovoltaic and wind generation with a nonlinear load in both cases with and without the APF is presented.
Raseel Aljendy; Rinat R. Nasyrov; Almoataz Youssef Abdelaziz; Ahmed A. Zaki Diab. Enhancement of Power Quality with Hybrid Distributed Generation and FACTS Device. IETE Journal of Research 2019, 1 -12.
AMA StyleRaseel Aljendy, Rinat R. Nasyrov, Almoataz Youssef Abdelaziz, Ahmed A. Zaki Diab. Enhancement of Power Quality with Hybrid Distributed Generation and FACTS Device. IETE Journal of Research. 2019; ():1-12.
Chicago/Turabian StyleRaseel Aljendy; Rinat R. Nasyrov; Almoataz Youssef Abdelaziz; Ahmed A. Zaki Diab. 2019. "Enhancement of Power Quality with Hybrid Distributed Generation and FACTS Device." IETE Journal of Research , no. : 1-12.