An accurate and efficient solar tracking system using image processing and LDR sensor

Sohag, Hanif Ali; Hasan, Mahmudul; Khatun, Mahmuda; Ahmad, Mohiuddin

doi:10.1109/eict.2015.7392008

Cited by 25 publications

(14 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This design is similar to the one proposed by Sohaq et. al [9] when they combined the LDRs and the camera with image processing method for accurate and efficient system. However, the integration of image processing system could only increases the performance of PV further 1.45% to 20% of LDR system with the complexity of image processing and extra computing power.…”

Section: Methodsmentioning

confidence: 99%

Dual Axes Solar Tracker

Ibrahim

Rahman

Rohaizat

2018

IJECE

View full text Add to dashboard Cite

Photovoltaic (PV) is one of the most important sources of renewable energy in the world. Its current efficiency could be increased up to 60% by using dual axes solar tracker, which maximise PV exposure to sun. The most important component in dual axes solar tracker is sensing location of the sun. Four light dependent resistors (LDR) are used as the sensors, connected to potentiometers to increase their accuracy. Arduino UNO is used as the controller to control two stepper motors. Two experiments have been carried out, where the tolerance of the LDR has been found to be 0.05V and the calibration of the four LDRs to have the error of 0.03V. Both experiments proved the capability of LDR for dual axes solar tracker and potentiometer to increase their accuracy.

show abstract

Section: Methodsmentioning

confidence: 99%

Dual Axes Solar Tracker

Ibrahim

Rahman

Rohaizat

2018

IJECE

View full text Add to dashboard Cite

show abstract

“…However, the authors tested only the proposed system to assess the performance of the remote terminal unit. With the advent of optimal machine vision algorithms, recent CRS tracking systems combine the open-loop control system with the machine vision for error correction to increase the efficiency of the control system or machine vision on its own to implement the tracking system [36,45,52]. For example, Burisch et al [53] proposed an automatic calibration procedure for each heliostat attached to a digital camera.…”

Section: Review Of Tracking Systems For Crsmentioning

confidence: 99%

Pilot Low-Cost Concentrating Solar Power Systems Deployment in Sub-Saharan Africa: A Case Study of Implementation Challenges

et al. 2020

View full text Add to dashboard Cite

Electricity is one of the most crucial resources that drives any given nation’s growth and development. The latest Sustainable Development Goals report indicates Africa still has a high deficit in electricity generation. Concentrating solar power seems to be a potential option to fill the deficit. That is because most of the components of concentrating solar power plants are readily available on the African market at affordable prices, and there are qualified local persons to build the plants. Pilot micro-concentrating solar power plants have been implemented in Sub-Saharan Africa and have shown promising results that could be expanded and leveraged for large-scale electricity generation. An assessment of a pilot concentrating solar power plant in the sub-region noticed one noteworthy obstacle that is the failure of the tracking system to reduce the operating energy cost of running the tracking control system and improve the multifaceted heliostat focusing behavior. This paper highlights the energy situation and the current development in concentrating solar power technology research in Africa. The paper also presents a comprehensive review of the state-of-the-art solar tracking systems for central receiver systems to illustrate the current direction of research regarding the design of low-cost tracking systems in terms of computational complexity, energy consumption, and heliostat alignment accuracy.

show abstract

“…The difference between the desired value with the actuator's actual position is formulated as the error value. The equation is expressed by equation (8).…”

Section: Sliding Mode Controllermentioning

confidence: 99%

“…These previous results shows that the image processing is capable to result very accurate object identification, because it can provide the sun centroid coordinate pixels precisely in real time. Greater resolution of the camera will provide better performance of solar tracking process [8]. The pixel position of the sun centroid is represented by x and y value which is represent the error value from the midpoint of camera frame.…”

Section: Introductionmentioning

confidence: 99%

Robust and Accurate Positioning Control of Solar Panel System Tracking based Sun Position Image

Syafaah¹,

Fauziyah²,

Has³

2018

EECSI

View full text Add to dashboard Cite

This study contains the robust and accurate positioning control design for solar panel system consisting of elevation and azimuth axis tracker. The ultimate objective of the study is to ensure the solar panel move accurately to follow its tracking reference against mechanical load and other disturbances. The tracking reference was the images of actual sun position. Image processing result as the initial reference and high precision encoder as the controller feedback path were intended to obtain the accurate position of hardware response. Sliding Mode Controller (SMC) with Proportional Integral Derivative (PID) Sliding Surface was employed as control technique that guarantee the solar panel system robust against disturbances or load variation. The proposed method was evaluated through software simulation and hardware validation. The software for the simulation and validation was LabVIEW. While the software for image processing was Vision Assistant. From hardware validation, accuracy of the solar panel system to track the sun position image for elevation and azimuth were 2.622% (0.03007˚) and 0.244% (0.00893˚), respectively. These results indicate that the solar panel system was available to move accurately to track the sun position both in azimuth and elevation axis.

show abstract

An accurate and efficient solar tracking system using image processing and LDR sensor

Cited by 25 publications

References 6 publications

Dual Axes Solar Tracker

Dual Axes Solar Tracker

Pilot Low-Cost Concentrating Solar Power Systems Deployment in Sub-Saharan Africa: A Case Study of Implementation Challenges

Robust and Accurate Positioning Control of Solar Panel System Tracking based Sun Position Image

Contact Info

Product

Resources

About