Improving Photovoltaic Efficiency by Tilting Angle Tracking System (TATS) in South of Iraq

2020 ◽  
Author(s):  
Fadhil Abbas M. Al-Qrimli ◽  
Karam Abdulwahed Kashan
Keyword(s):  
Tracking System ◽  
Photovoltaic Efficiency ◽  
Tilting Angle ◽  
South Of Iraq ◽  
Angle Tracking

scholarly journals Dual axis solar angle tracking system without any sensor

2018 ◽  
Vol 2 (3) ◽  
pp. 127-136 ◽  
Author(s):  
Zuhal Er ◽  
Elif Balcı
Keyword(s):  
Tracking System ◽  
Angle Tracking ◽  
Solar Angle

scholarly journals Optimum range of angle tracking radars: a theoretical computing

2019 ◽  
Vol 9 (3) ◽  
pp. 1765 ◽  
Author(s):  
Sadegh Samadi ◽  
Mohammad Reza Khosravi ◽  
Jafar A. Alzubi ◽  
Omar A. Alzubi ◽  
Varun G. Menon
Keyword(s):  
Closed Form ◽  
Optimization Problem ◽  
Tracking System ◽  
Total Error ◽  
Optimal Range ◽  
The Past ◽  
Simple Simulation ◽  
Simulation Based ◽  
Angle Tracking ◽  
Theoretical Computing

In this paper, we determine an optimal range for angle tracking radars (ATRs) based on evaluating the standard deviation of all kinds of errors in a tracking system. In the past, this optimal range has often been computed by the simulation of the total error components; however, we are going to introduce a closed form for this computation which allows us to obtain the optimal range directly. Thus, for this purpose, we firstly solve an optimization problem to achieve the closed form of the optimal range (Ropt.) and then, we compute it by doing a simple simulation. The results show that both theoretical and simulation-based computations are similar to each other.

HIGH RESOLUTION MONOPULSE RADAR TRACKING SYSTEM

1992 ◽  
Vol 02 (04) ◽  
pp. 305-321
Author(s):  
Y.A. ALSAKA ◽  
L.A. YOUNG ◽  
M. HAMID
Keyword(s):  
High Resolution ◽  
Cross Sections ◽  
Tracking System ◽  
Error Function ◽  
Geometric Center ◽  
Radar Cross Sections ◽  
High Resolution Radar ◽  
Angle Tracking ◽  
Crosscorrelation Function ◽  
Frequency Pulse

High resolution radar techniques are applied to the problem of resolving a multiple target array and locating its geometric center without the usual biasing toward the brightest scatterer. This result is accomplished using monopulse radar techniques combined with high resolution stepped frequency pulse train signal processing in an angle tracking noncoherent high resolution radar. The center of each uniquely separated pair of point targets is calculated by examining the crosscorrelation function of the sum and difference channels. The autocorrelation of the sum channel is used to normalize the crosscorrelation data thereby eliminating the effects of the different targets’ radar cross sections (RCS). The zero separation term of the error function (dc term) remains biased toward the bigger scatterer, even after normalization. The nonzero terms (ac terms) are the cross range distances from the antenna’s boresight to each scatterer and are independent of their RCS. By simply dropping the zero separation term and averaging the remaining terms together, the aimpoint becomes the unbiased geometric center of the array.

scholarly journals Modeling and Simulation for the Investigation of Radar Responses to Electronic Attacks in Electronic Warfare Environments

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
So Ryoung Park ◽  
Ilku Nam ◽  
Sanguk Noh
Keyword(s):  
Electromagnetic Wave Propagation ◽  
Tracking System ◽  
Characteristic Parameters ◽  
Tracking Errors ◽  
Electronic Warfare ◽  
Input Section ◽  
Simulation Scenario ◽  
Deceptive Jamming ◽  
Set Up ◽  
Angle Tracking

An electronic warfare (EW) simulator is presented to investigate and evaluate the tracking performance of radar system under the electronic attack situations. The EW simulator has the input section in which the characteristic parameters of radar threat, radar warning receiver, jammer, electromagnetic wave propagation, and simulation scenario can be set up. During the process of simulation, the simulator displays the situations of simulation such as the received signal and its spectrum, radar scope, and angle tracking scope and also calculates the transient and root-mean-squared tracking errors of the range and angle tracking system of radar. Using the proposed EW simulator, we analyze the effect of concealment according to the noise and signal powers under the noise jamming and also analyze the effect of deception by calculating errors between the desired value and the estimated one under the deceptive jamming. Furthermore, the proposed EW simulator can be used to figure out the feature of radar threats based on the information collected from the EW receiver and also used to carry out the electronic attacks efficiently in electronic warfare.

scholarly journals Evaluation of Photovoltaic Solar Power of a Dual-Axis Solar Tracking System

2020 ◽  
Vol 55 (1) ◽  
Author(s):  
Ali Sabri Allw ◽  
Ikhlas Hameem Shallal
Keyword(s):  
Solar Cell ◽  
Tilt Angle ◽  
Tracking System ◽  
Electrical Power ◽  
Solar Panel ◽  
Solar Tracking ◽  
Tilting Angle ◽  
Zero Degree ◽  
Axis Position ◽  
Electrical Power Output

In this research project, a tip-tilting angle of a photovoltaic solar cell was developed to increase generated electrical power output. An active, accurate, and simple dual-axis tracking system was designed by using an Arduino Uno microprocessor. The system consisted of two sections: software and apparatus (hardware). It was modified by using a group of light-dependent resistor sensors, and two DC servo motors were utilized to rotate the solar panel to a location with maximum sunlight. These components were arranged in a mechanical configuration with the gearbox. The three locations of the solar cell were chosen according to the tilt angle values, at zero angles, which included an optimal 33-degree angle for the Baghdad location and a variable angle with the dual-axis tracking system. For maximum value of the extracted solar energy, a photovoltaic solar panel that collects sunlight should be in normal position onto this radiation. Solar trackers relocated the panel toward the path of the Sun to ensure that the collector rotated at an optimal tilt angle. The results showed that the generated power at the dual-axis position was 3.384 watts per hour (W/h), the 33-degree angle yielded 2.237 W/h, and the zero-degree angle yielded 1.09 W/h. The results confirmed that the performance of a dual-axis solar tracking system is active and efficient.

Robust command filtered control for course tracking of ships under actuator dynamics with input magnitude and rate saturation

2021 ◽  
pp. 147509022110522
Author(s):  
Qijia Yao
Keyword(s):  
Control Strategy ◽  
Disturbance Observer ◽  
Closed Loop ◽  
Tracking System ◽  
Tracking Error ◽  
Small Region ◽  
Great Difficulty ◽  
Environmental Disturbances ◽  
Actuator Dynamics ◽  
Angle Tracking

This article investigates the course tracking of ships subject to parametric uncertainties and environmental disturbances. Particularly, the actuator dynamics with input magnitude and rate saturation is also considered. When including the actuator dynamics, the ship course tracking system becomes a mismatching system, which brings a great difficulty to the control design. A novel robust command filtered control strategy is presented by incorporating a disturbance observer and an auxiliary anti-saturation system into the command filtered backstepping control architecture. The disturbance observer is designed to compensate for the mismatched lumped disturbance. The auxiliary anti-saturation system is introduced to tackle the effects of input magnitude and rate saturation. It is strictly proved that all the closed-loop error signals under the proposed controller are uniformly ultimately bounded and the course angle tracking error can converge to the adjustable small region around the origin. Moreover, the proposed controller is computationally simple and has the strong robustness against uncertainties and disturbances. The effectiveness and advantages of the proposed control strategy are verified through simulations and comparisons.

The Research and Design of Automatic Tracking System of the Light Based on the LOGO Controller

2013 ◽  
Vol 724-725 ◽  
pp. 195-199
Author(s):  
Zhan Jun Tang ◽  
Pei Zhi Yang ◽  
Tong Zhang
Keyword(s):  
Control Function ◽  
Tracking System ◽  
Weather Conditions ◽  
Automatic Tracking ◽  
Photovoltaic Efficiency ◽  
Solar Tracking ◽  
Solar Motion ◽  
Practical Operation ◽  
Automation Technology ◽  
Research And Design

Use of automation technology sun tracking is to improve the photovoltaic efficiency of the important ways, according to research the power generating efficiency is increased by 30% to 40%, the existing solar power station solar light tracking for the software control, namely, according to historical data, based on the analysis and calculation of the solar motion law, writing software control, real-time monitoring, cumulative error manual correction, regularly. In order to solve the above problem, this paper describes the design of a novel solar tracking system, sensor, controller, actuator to carefully design and selection, based on the realization of the LOGO! Intelligent controller as the core of hardware platform, the development of the control software, and the system is simulated and validated, finally through the joint hardware and software debugging and practical operation, the system run stable and reliable work, and can switch reset and the weather conditions to realize the automatic open Ing and closing of the automatic tracking system of control function

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