Optimal design and analysis of DC–DC converter with maximum power controller for stand-alone PV system

Toumi, Djaafar; Benattous, Djiliani; Ibrahim, Аhmed; Abdul-Ghaffar, H. I.; Обухов, С. Г.; Aboelsaud, Raef; Labbi, Yacine; Diab, Ahmed A. Zaki

doi:10.1016/j.egyr.2021.07.040

Cited by 26 publications

(10 citation statements)

References 9 publications

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“…The current and voltage at MPP (IMPP and VMPP) depend on the open-circuit voltage, photocurrent, and weather conditions. Then, the equations used to estimate these values are introduced as follows [25][26][27][28]. Where, the solar radiation in W/m 2 is G.…”

Section: Pv Modelmentioning

confidence: 99%

Techno-economic assessment of green hydrogen production using different configurations of wind turbines and PV panels

Nasser

Megahed

Hassan

2022

Journal of Energy Systems

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In this work, a hybrid system is comprised of wind turbines (WT) and photovoltaic (PV) panels to generate green Hydrogen via water electrolysis. Consideration is given to the influence of five electrical power generation scenarios on system performance and Hydrogen production cost. This study adopts the solar radiation, wind speed, and ambient temperature for Mersa-Matruh in Egypt. The system performance is studied using MATLAB-Simulink over one year. The winter months have high wind speed and low sun radiation compared to other months, whereas additional months have high solar radiation and lower wind speed than the winter months. The findings show that the amount of Hydrogen produced for all scenarios varies from 12,340 m3 to 13,748 m3 per year. The system efficiency and LCOH are 7.974% and 3.67$/kg, 9.56%, and 3.97$/kg, 10.7% and 4.12 $/kg, 12.08%, and 4.3$/kg, and 16.23% and 4.69$/kg for scenarios1 to 5, respectively. Finally, the introduced system can reduce CO2 emissions by 345 tons over the lifetime and gain about 13,806$.

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Section: Pv Modelmentioning

confidence: 99%

Techno-economic assessment of green hydrogen production using different configurations of wind turbines and PV panels

Nasser

Megahed

Hassan

2022

Journal of Energy Systems

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“…There are two other elements selected after the design of (L, C in and C out ), which are the switching MOSFET (S) and reverse diode (D). The selection of elements depends on the switching frequency ( f s ), the output current (I o ), and output voltage (V o ) ratings of the charger [19]. A 20 kHz-15 V-10 A charger leads us based on the following equations (Equations ( 6)-( 9)) to select a 1.25 mH inductance, 0.1 mF output capacitance, and 0.047 mF input capacitance:…”

Section: Design Of Chargermentioning

confidence: 99%

A New Battery Selection System and Charging Control of a Movable Solar-Powered Charging Station for Endless Flying Killing Drones

2022

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This paper provides a design, a charging control, and energy management of a movable Photo Voltaic (PV) charging station with an Automatic Battery Replacement (ABR) system to enable drones for ongoing missions. The paper represents the first stage of a three-staged project titled Fall Armyworm (FAW) insect killer. The other two stages involve the flight control of drones and detecting and killing FAW insects. Without chemical methods, the project aims to eliminate harmful FAW insects that are rapidly spreading in Africa and Asia. The power source is a hybrid PV system with energy storage devices (batteries and supercapacitors). The maximum power from PV panels is tracked using three different online methods (PSO, IC, and P&O), and the best method with the highest accuracy is selected. The experimental and simulation results approved that PSO is the recommended method used in this project among the studied methods because of its high target reach (about 97%) and low steady-state oscillation (maximum 2.15%). An intelligent energy management system is investigated and designed to efficiently utilize solar power with a constant-current constant-voltage charger for LiPo batteries. A new Battery Selection System (BSS) is designed and verified to efficiently utilize the harvested energy and increase the mission time. The BSS targets to manage the selection of the appropriate battery to charge and control its charging rate. The system performance is tested using MATLAB software. Then, an experimental setup for the system is built to validate simulation results. The results of simulations and experiments proved the reliability of BSS in different operating cases with an efficiency higher than 97%.

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“…(1) Equations ( 1) can be rewritten as: 𝑉 𝐿1 (𝑡) = 𝑉 𝑆 − 𝑉 𝐶1 (6) When the Switch is turned off, then the VL1 Second-balance can be written as: (7) Putting Equation ( 6) in the above equation ( 7), ID : 112-0401/2022 (8) For finding the average current, the current thorugh L1 in off mode is added to current through L1 in on mode and then make them equal to zero. (9) Use the equaitons of current in both modes in equation ( 9 During OFF mode, the Voltage-Second Balance equation can be expressed as: (14) During ON mode, the Voltage-Second Balance equation can be expressed as (15) When both equations of Voltage-Second Balance are added gives average current through both inductors:…”

Section: Figure 5 Steady State Waveformmentioning

confidence: 99%

“…Figure 1. Schematic of the micro-grid consisting multifarious micro-sources and power converters [4] The best solution to overcome the issue associated to micro-sources is to utilize DC-DC boost converter having high gain to upgrade the final voltage of micro-sources from low voltages to 380-400 V [7]. To convert high DC voltage in to AC voltages for AC appliances, DC-AC inverters are used [8].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Novel Cascaded Topology with LD Cell for Micro-source Grids

Ullah

Umar

Awais

et al. 2022

JCBI

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This paper focus on DC-DC converter called Novel Cascaded topology. This converter lies in the category of Non-Isolated DC-DC boost converters with upgraded voltage gain based on conventional topology with LD cell for micro-source grids. The proposed novel cascaded topology increases the voltage boost ability. There are some merits of our proposed topology that includes small voltages stresses across the switch, as well as upgraded gain. We prefered to use switch having small voltage rating as well as small resistance in ON-mode (RDS-ON), it leads to provide high efficiency. In our cascaded topology with LD cell,we did not use large duty cycle, coupling inductors as well as transformer.We will utilize the Continuous Conduction Mode (CCM) for the analysis of proposed novel cascaded topology. This topology is designed to operated on 12V supplying voltage, 55% duty cycle, 265W output power and frequency of 12KHz. The continous conduction mode (CCM) has been analyzed theoretically as well as practically based derived equations. The novel cascaded converter has been simulated in PSIM as well as MATLAB/SIMULINK, while explanations of the overall results are provided based on PSIM.

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Optimal design and analysis of DC–DC converter with maximum power controller for stand-alone PV system

Cited by 26 publications

References 9 publications

Techno-economic assessment of green hydrogen production using different configurations of wind turbines and PV panels

Techno-economic assessment of green hydrogen production using different configurations of wind turbines and PV panels

A New Battery Selection System and Charging Control of a Movable Solar-Powered Charging Station for Endless Flying Killing Drones

Design and Analysis of Novel Cascaded Topology with LD Cell for Micro-source Grids

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