I am working with a solar fed boost converter in which I have changed the irradiation levels to see the behavior of the converter in MPPT. I need to show a graphical representation of my tracking results like the one shown in the picture. I have no idea how to get the tracking line in a P-V curve with the respective irradiations. It will be a great help if someone could guide me through this.
Thank You!
Dear Hasan,
if you track voltage and current values for a number of irradiation levels, the sum of points where deriving power over current change equals zero gets yoou the line you're searching for.
Step 1: Measure and store the tracked voltage and current values.
Step 2: Plot the I-V curve.
Step 3: Plot the tracked voltage and current values on the I-V curve.
You can do this using the Matlab program, where you write a program command that draws a point on the curve when the result of product the power and voltage is zero.
Dear Hasan,
In such cases, I use the following procedure:
- In Simulink, I use the ''To Workspace (simout)'' to get the values of current and voltage at MPP point for the first irradation level. Once you run the simulation these values are saved to Workspace. You can run the simulation with different irradation levels and save them to Workspace. (Please do not forget to change the name of simout after each simulation).
- When you have the all necessary data from simulation you can use the basic plotting functions using the Command Window. (What I do is using ''plot(X,Y)'' and ''hold on'' I am able to create I-V or P-V characteristic.)
Hope it helps.
- Badges
- Science topic
- Similar topics
- Geoscience
- Asia
- India