Matlab Report

Matlab Report - Lab Project 1: Solar Panel Experiment...

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Lab Project 1: Solar Panel Experiment ES100, Spring 2005 Section 25 Lab Date: 04/05/05 Report Submission Date: 04/12/05 Report: Fareed Tinorgah Wiring: Joe Contini Measurements: Robert Golen Software: Lewis Tyler
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1. Objective This experiment was undertaken to observe the relationship between current and voltage with changes in resistance, and also to observe how the power produced changes with change in angle of the solar panel. 2. Procedure 2.1 Task One In the first part began with the solar panel at zero degrees and the resistance of the input box was varied and thus varied the intensity of the light hitting the solar panel. Then the angle of the solar panel was changed to thirty degrees and followed the same procedure of changing the resistance, and then again at sixty degrees. Next the solar panel characteristic curve was plotted by plotting voltage as a function of current applied to the solar panel. 2.2 Task Two In this task, the resistance was kept constant and the panel angle was varied by five degree increments and thus the relationship between the angle of the solar panel and the resistance was found. The experiment was then repeated three times; each set of data had its own resistance given to the system while the angle of the solar panel was varied in five degree increments.
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3. Results 3.1 Task One: Variables were created from the first three data files using MATLAB (Appendix A). The Voltage and resistance data were used to create current and power variables. Voltage plotted as a function of current (Figure 1) produced characteristic curves of the solar panel at different angles. Figure 1 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Current (A) Voltage (V) Solar Panel Characteristic Curves Angle = 0 Angle = 30 Angle = 60
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Figure 2 below shows the characteristic curves of the electrical power plotted against the current. Figure 2 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 Current (A) Power (W) Solar Panel Power Curves
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3.2 Task Two: Variables were created from the last three data files using MATLAB. Current as well as the cosine of the recorded angles were then generated from those values. The relationship between the current and the panel angle is depicted below in the plots of the current as a function of both the angle and the cosine of the angle (Figure 3 and Figure 4 respectively) Figure 3 0 10 20 30 40 50 60 70 80 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 Angle (degrees) Current (A) Solar Panel Angle Curves Dataset4 Resistance=200 Ohms Dataset5 Resistance=20 Ohms Dataset6 Resistance=2 Ohms
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Matlab Report - Lab Project 1: Solar Panel Experiment...

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