Design and Simulation of Dual Axis Solar Tracker for Optimum Solar Energy Absorption
Sunil Kumar Jilledi,
Daniel Tesfazgi,
Filmon Foto,
Mahmud Ali,
Abduselam Atta,
Alexander Yemane
Issue:
Volume 7, Issue 3, September 2019
Pages:
34-43
Received:
31 July 2019
Accepted:
29 August 2019
Published:
19 September 2019
Abstract: Solar energy is becoming one of the most expanding renewable energy it is getting more prominence. Sun trackers can substantially improve the electricity production of a photovoltaic (PV) system. This paper proposes a novel design of a dual-axis solar tracking PV system that utilizes the feedback control theory along with a four-quadrant light-dependent resistor (LDR) sensor and simple electronic circuits to provide robust system performance. Our project will include the design and construction of a microcontroller-based solar panel tracking system. In hardware development we utilize LDR’s as sensors and two servo motors to direct the position of the solar panel. Dual-axis solar tracking allows more energy to be produced because the solar array is able to remain aligned perpendicular to the sun. In this paper to make better analysis Dual axis solar tracker is implemented for standalone system and simulation analysis is performed on the grid-connected PV station. To perform the experimental analysis the data is collected from Meteorology of Asmara and NASA. Comparative results have been presented between static and automatic solar dual-axis stand-alone systems. Moreover, comparison will be made among the output power results of our system with the conventional (Static) solar system. Simulation results have presented for the grid integrated system which shows better performance results.
Abstract: Solar energy is becoming one of the most expanding renewable energy it is getting more prominence. Sun trackers can substantially improve the electricity production of a photovoltaic (PV) system. This paper proposes a novel design of a dual-axis solar tracking PV system that utilizes the feedback control theory along with a four-quadrant light-depe...
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Design and Simulation of Dual Conversion Transformerless Online and Line-Interactive UPS
Mahmud-Ul-Tarik Chowdhury,
Md. SalehEbn Sharif,
S. M. Rafiul Islam,
Md. Monower Zahid Khan,
Md. Eliasinul Islam
Issue:
Volume 7, Issue 3, September 2019
Pages:
44-50
Received:
5 August 2019
Accepted:
28 August 2019
Published:
26 September 2019
Abstract: In this paper, a dual-conversion online static UPS and Line-Interactive UPS system were modeled and simulated using PSIM software. The components of the proposed design were specified based on pre-defined constrains, and the dynamic behavior of the system was modeled through state-space equations. With the system components characterized, a suitable controller was developed for closed-loop control of the buck and boost circuits. A battery charge management controller was also developed to ensure the robustness of the design. Overall system performance was analyzed under varying load and line conditions. Both systems consistently supply power to the load regardless of the state of the grid, as long as the battery SOC is adequate.
Abstract: In this paper, a dual-conversion online static UPS and Line-Interactive UPS system were modeled and simulated using PSIM software. The components of the proposed design were specified based on pre-defined constrains, and the dynamic behavior of the system was modeled through state-space equations. With the system components characterized, a suitabl...
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