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MOOLS : Remote Lab - Modeling and Control of Moveable Photovoltaic modules
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Use the following control panel with Current Controlling / Closed-Loop tab.
Choose an Angle Setpoint 30° , a Current Setpoint of 0.2 [A] and a P Controller.
Test different values for gain Kp .
The curves can be inserted in the space below :
- either by saving the Print Screen of the control panel, in image format
- either by downloading the measurement file and saving the plot generated with Matlab, in image format
Is there a current error when using a P controller with a first order system ?
Use the same control panel with Current Controlling / Closed-Loop tab.
Choose an Angle Setpoint 30° , a Current Setpoint of 0.2 [A] and a PI Controller.
As the system is nonlinear, the different parameters of the PI controller will be determined experimentally.
Test different values for Kp and Ki to reach the Setpoint, for example by increasing gradually Ki and decreasing Kp.
The curves can be inserted in the space below :
- either by saving the Print Screen of the control panel, in image format
- either by downloading the measurement file and saving the plot generated with Matlab, in image format
For current controlling of the solar panel, which solution do you choose ?
Use again the control panel with Current Controlling / Closed-Loop tab with a PD Controller.
What do you observe when using a PD Controller ?
What do you observe with a PI Controller with a first order System ?
What happens if you increase too much the P controller gain Kp ?
Use the following control panel with Current Controlling / Open-Loop tab to measure the step response of the solar panel. Set the Solar panel Angle to 30°.
Try different input signals Ub ≥ Ub1 [V] until the solar PV produces a current Ipv.
The curves can be inserted in the space below :
- either by saving the Print Screen of the control panel, in image format
- either by downloading the measurement file and saving the plot generated with Matlab, in image format
Use the same control panel with Current Controlling / Open-Loop tab to measure the step response of the solar panel for a Solar panel Angle of 60° with the following input signal :
Input = Ub = 5 [V]
Output = Ipv [A]
Based on the gain K1 and the constant time T1 calculated, for different input signal Ub,