NDLI: A Cost-Effective Active Single Axis Solar Tracking Mechanism Based on Weight Imbalance Principle

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A Cost-Effective Active Single Axis Solar Tracking Mechanism Based on Weight Imbalance Principle

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A Cost-Effective Active Single Axis Solar Tracking Mechanism Based on Weight Imbalance Principle

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Kader, A. M. Muhammad, I. Rashad Elzouka, Mahmoud El-Souhily, B. M.
Copyright Year	2018
Abstract	Solar trackers are rising in popularity; they benefit a wide range of applications since distributed solar energy generation can reduce electricity costs and support energy independence. In this paper, a simple solar tracking system is introduced. The system is a package unit that can be mounted on any solar panel. The system consists of an electrical motor connected directly to a sliding mass on a linear bearing. The electrical motor is controlled to slide the weight along the shafts in controlled steps. As a result, the photovoltaic panels are rotated automatically under the effect of controlled weight unbalance in fine angle increments to track solar trajectory without the need for traditional complex or costly mechanisms. Two light dependent resistors (LDR) sensors, mounted onto the surface of the solar photovoltaic panel, are exposed to solar irradiance and used to feed signals to a controller. A model of the solar tracking system is developed using ordinary differential equations, and numerically solved by MATLAB/Simulink™. The power consumption and tracking strategy of the proposed tracking system are estimated under realistic operating conditions (e.g. wind and brakes), and the power consumption is compared to the power generated by the photovoltaic panels. Optimum values for the sliding mass are suggested. Two photovoltaic modules are used to calculate the output parameters of the proposed tracking mechanism.
Sponsorship	Power Division Advanced Energy Systems Division Solar Energy Division Nuclear Engineering Division
File Format	PDF
ISBN	9780791851395
DOI	10.1115/POWER2018-7378
Volume Number	Volume 1: Fuels, Combustion, and Material Handling; Combustion Turbines Combined Cycles; Boilers and Heat Recovery Steam Generators; Virtual Plant and Cyber-Physical Systems; Plant Development and Construction; Renewable Energy Systems
Conference Proceedings	ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum
Language	English
Publisher Date	2018-06-24
Publisher Place	Lake Buena Vista, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Resistors Energy consumption Wind Bearings Control equipment Electric motors Weight (mass) Solar energy Differential equations Trajectories (physics) Sensors Signals Brakes Solar radiation Matlab
Content Type	Text
Resource Type	Article

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