The New Method of Solar Power Generation Using Spin Angle and Elevation Angle Program Control with LabVIEW

2013 ◽  
Vol 756-759 ◽  
pp. 650-654
Author(s):  
Qi Rong Lu ◽  
Lei Wang ◽  
Qi Lin Tang ◽  
Yu Jian Yang
Keyword(s):  
Tracking Control ◽  
Tracking Error ◽  
Elevation Angle ◽  
Control Mode ◽  
The Sun ◽  
Main Method ◽  
Solar Power Generation ◽  
Photovoltaic Efficiency ◽  
Solar Tracking ◽  
Angle Deviation

In order to reduce the power consumption of traditional tracking control, this article according to the tracking theory of spin new angle of elevation design of high precision two-axis solar tracking controller based on LabVIEW programming. The main method of control mode to calculate the position of the sun, using the S1337-1010BQ sensor to track the sun angle deviation automatic proofreading. According to the light intensity automatically adjust the reset program, can maximize the more light. After the test, a new tracking method tracking error is reduced, the photovoltaic efficiency is further improved.

Research on Physical MPPT of Photovoltaic Array System Based on Image Processing

2013 ◽  
Vol 321-324 ◽  
pp. 1138-1144
Author(s):  
Chao Liu ◽  
Jing Hui
Keyword(s):  
Image Processing ◽  
Tracking Error ◽  
Elevation Angle ◽  
Image Sensor ◽  
Azimuth Angle ◽  
Field Of View ◽  
The Sun ◽  
Photovoltaic Array ◽  
Point Tracking ◽  
Power Point

Based on analyzing the development and the performance feature of existing solar tracker, we propose a solar Maximum Power Point Tracking (MPPT) strategy which combines photoelectric sensor and image processing. Firstly, photoelectric tracking mode positions the sun in the field of view of the image sensor. Then, the position of the sun image is captured by the image sensor. After that, we can find the coordinates of the sun spot in the field of view through image binarization processing. According to the number of steps of stepper motor rotation which is calculated by the deviation of coordinates, the controller drives the biaxial photosensitive (PV) array tracking device, making the sun spot always fall in the centre of the image. Tests show that the elevation angle and azimuth angle of the tracking range of the photovoltaic array are both 0～270°.The average tracking error of elevation angle is less than 0.7°, and the average tracking error of azimuth angle is less than 0.5°.

Design and Implementation of Dual-Axis Solar Tracking System with GSM Fault Reporting Capability

2013 ◽  
Vol 724-725 ◽  
pp. 43-51 ◽  
Author(s):  
Yu En Wu ◽  
Kuo Chan Huang
Keyword(s):  
Power System ◽  
Power Efficiency ◽  
Solar Power ◽  
Tracking System ◽  
Elevation Angle ◽  
Azimuth Angle ◽  
The Sun ◽  
Solar Panels ◽  
Sensing Element ◽  
Solar Tracking

This paper presents a smart dual-axis solar tracking system, its architecture includes sensors, embedded controllers, AC motors, Integrated electric putter design biaxial institutions, and the GSM automatic report of fault notification, to achieve autonomous tracking solar track system and adjust the solar panels to reach the maximum smooth by tracking the solar azimuth angle and elevation angle, and ensure that the solar panels with the sun to maintain the vertical in any time and any place, thus achieving the best power efficiency. This system proposed a dual-axis design, and an embedded controller used as the main system controller to detect voltage difference and determine the solar azimuth angle with four groups of CDS as a sensing element. To lock the sun, the solar panels be perpendicular via the moving of AC motor (EW) and motorized faders (north-south). The control system software using C language can be extremely fast and accurate tracking of the solar angle, and dual-axis operation with recovery mode to save the power loss. Finally, we have the actual analysis and verification of benefit of power generation in this paper, from this experimental results, we can verify the integration of build dual-axis solar tracking system and solar power system have promoted 30% generating power capacity more than fixed solar power system and has low failure rate. It can improve the problem of traditional tracking system reliability and greatly enhance the usefulness of this system.

scholarly journals Solar Tracking Error Analysis of Fresnel Reflector

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Jiantao Zheng ◽  
Junjie Yan ◽  
Jie Pei ◽  
Guanjie Liu
Keyword(s):  
Rotation Angle ◽  
Rotation Axis ◽  
Tracking Error ◽  
The Sun ◽  
Angle Error ◽  
Tracking Errors ◽  
Solar Altitude ◽  
Solar Tracking ◽  
Main Factors ◽  
The Difference

Depending on the rotational structure of Fresnel reflector, the rotation angle of the mirror was deduced under the eccentric condition. By analyzing the influence of the sun tracking rotation angle error caused by main factors, the change rule and extent of the influence were revealed. It is concluded that the tracking errors caused by the difference between the rotation axis and true north meridian, at noon, were maximum under certain conditions and reduced at morning and afternoon gradually. The tracking error caused by other deviations such as rotating eccentric, latitude, and solar altitude was positive at morning, negative at afternoon, and zero at a certain moment of noon.

Research on Embedded Sun-Tracking Control System Based on GPS

2012 ◽  
Vol 512-515 ◽  
pp. 267-270
Author(s):  
Cheng Gang Zhen ◽  
Guo Jie Lu
Keyword(s):  
Power Generation ◽  
Tracking Control ◽  
Tracking System ◽  
Elevation Angle ◽  
Solar Panels ◽  
Angle Sensor ◽  
Gps Positioning ◽  
The Core ◽  
Solar Tracking ◽  
Solar Elevation Angle

To improve the efficiency of the power generation，the scheme of the solar tracking system is designed by analyzing the technical characteristics of the GPS positioning system. The microcontroller is chosen as the core which has realized the initiative sun-tracking to improve the efficiency of the power generation. The solar elevation angle and azimuth are calculated by extracting the GPS real-time datas. The position of the solar panels can be obtained through the angle sensor. Finally, adjust the orientation of the panels by the driving stepping motor to track the sun.

Design of a New GPS-Based Automatic Sun Tracking Control System

2012 ◽  
Vol 546-547 ◽  
pp. 987-991
Author(s):  
Hong Yan Li ◽  
Zhe Liu
Keyword(s):  
Control System ◽  
Tracking Control ◽  
Angular Position ◽  
Elevation Angle ◽  
Observation Point ◽  
The Sun ◽  
Single Chip ◽  
Current Time ◽  
Solar Lighting ◽  
Calibration Device

A key issue of the solar system is how to determine real-time position of the sun. This paper describes a new solar lighting system. The system uses a new GPS-based solar tracking control module. A Global Positioning System (GPS) is used to acquire latitude, longitude and the current time of the observation point. Single Chip Microcomputer Atmega168 is used to calculate the elevation angle and azimuth of the sun at this time, and to control the stepper motor rotating pan-tilt.. Using the angular position detector as a calibration device, the control system achieves accurate tracking of the sun, and is calibrated to achieve 0.5°accuracy.

scholarly journals npTrack: A n-Position Single Axis Solar Tracker Model for Optimized Energy Collection

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 925
Author(s):  
Manoel Henriques de Sá Campos ◽  
Chigueru Tiba
Keyword(s):  
Solar Energy ◽  
Tracking System ◽  
Tracking Error ◽  
Annual Average ◽  
Mechanical Parts ◽  
Solar Tracking ◽  
Proposed Model ◽  
Angle Deviation ◽  
Solar Tracker ◽  
Novel Model

The single axis solar tracker based on flat panels is used in large solar plants and in distribution-level photovoltaic systems. In order to achieve this, the solar tracking systems generally need to work by tracking the sun’s position with dozens, maybe hundreds of movements along the day with a maximal known tracking error within the specifications. A novel model is proposed along this work based on the control of the angle deviation within a (polar) single axis configuration. This way an optimization of the harnessing of solar energy can be achieved with as few panel displacements as possible in order to decrease the wear in the mechanical parts of the equipment and the energy consumed by it. This tracking approach was implemented with as few as seven positions along the day and got an estimated theoretical value of 99.27% of the total collected energy in a continuous tracking system. Regarding an annual average basis, it would be about 96.5% of a dual axis system according to the proposed model. The novelty of the model is related to a tradeoff between the gain with the simplicity of a single axis n-position tracking and the solar energy loss associated.

Solar and Collector Angles

2017 ◽  
pp. 1-66
Keyword(s):  
Incidence Angle ◽  
Sunshine Duration ◽  
Elevation Angle ◽  
Global Solar Radiation ◽  
The Sun ◽  
Solar Tracking ◽  
Measuring Site ◽  
Solar Receiver ◽  
Solar Elevation Angle

The Sun position determination is required in several solar applications, within them is the Sun tracking. The Sun position is determined in this chapter with reference to the Earth's center and with reference to an observer on the Earth's surface. This procedure allows determining the possible relationships between different solar angles. The determination of the solar rays' incidence angle on the surface of different orientations is very important for determining sunshine duration on this surface as well as global solar radiation received by this surface. The obtained formulas could be used for determining the optimum tilt angle of solar receiver. Some procedures for measuring site latitude, solar elevation angle, solar zenith angle, hour angle and solar azimuth angle are presented. Some devices used in measuring sunshine duration are also described. The main systems of coordinates used in solar tracking are introduced. The provided information will be essential background for different types of Sun tracking.

Solar Tracking Device Based on Electronic Compass and Accelerometer

2014 ◽  
Vol 981 ◽  
pp. 522-525 ◽  
Author(s):  
Zhong Ran Zhang ◽  
Yuan Ma ◽  
Bo Jiao ◽  
Tong Liang Liu
Keyword(s):  
Elevation Angle ◽  
Least Square Method ◽  
Least Square ◽  
Stable Operation ◽  
Solar Tracking ◽  
High Flexibility ◽  
Tracking Device ◽  
Solar Position ◽  
Electronic Compass ◽  
The Magnetic Field

A solar tracking device was designed in this paper. First, In order to determine the initial direction of the mechanism and the east, HMC5883L was used for measuring the magnetic field of earth. Then, the mechanism began to operate according to the solar position which was confirmed though the astronomical calculation. Finally, the azimuth and the elevation angle of solar were measured and corrected by HMC5883L and MPU6050 respectively. HMC5883L was calibrated by the ellipse fitting, which was obtained though the least square method. The horizontal error of HMC5883L was compensated. The experimental study was performed. And the results show that the solar tracking device has the characteristics of stable operation, high flexibility and low requirement of installation precision.

Design, Development and Performance Test of Two-Axis Solar Tracker System

2014 ◽  
Vol 704 ◽  
pp. 350-354
Author(s):  
Muhammad Ikram Mohd Rashid ◽  
Nik Fadhil bin Nik Mohammed ◽  
Suliana binti Ab Ghani ◽  
Noor Asiah Mohamad
Keyword(s):  
Tilt Angle ◽  
Solar Collector ◽  
Performance Test ◽  
Tracking System ◽  
Electrical Power ◽  
Solar Thermal ◽  
The Sun ◽  
Solar Pv ◽  
Design Development ◽  
Solar Tracking

The energy extracted from photovoltaic (PV) or solar thermal depends on solar insolation. For the extraction of maximum energy from the sun, the plane of the solar collector should always be normal to the incident radiation. Sun trackers move the solar collector to follow the sun trajectories and keep the orientation of the solar collector at an optimal tilt angle. Energy efficiency of solar PV or solar thermal can be substantially improved using solar tracking system. In this paper, an automatic solar tracking system has been designed and developed using DC motor on a mechanical structure with gear arrangement. The movements of two-axis solar trackers for the elevation and azimuth angles are programmed according to the mathematical calculation by using the Borland C++ Builder. Performance of the proposed system over the important parameter like solar radiation received on the collector, maximum hourly electrical power has been evaluated and compared with those for fixed tilt angle solar collector.

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