getting negative open voltage in pv array

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fatemeh
fatemeh 2023-12-13
评论： Sufyan 2024-10-26，19:20
hello,
I model pv array block with input excel using signal editor and repeating sequences. I just put goto block in 'm' port of pv array to see voltage diagram. after i run my voltage which is open circuit voltage is in negative part of V-t
if anyone what is my problem please help me.

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回答（1 个）

Aishwarya
Aishwarya 2023-12-27
Hi Fatemeh,
I understand that you are getting negative open circuit voltage from the “PV array” block, which is not the expected result.
In your Simulink model, the “PV array” block is used in a discrete system with large sample times. By default, the "Break algebraic loop in internal model" parameter is selected in the “PV array” block. For discrete system, the algebraic loop in “PV array” block is required to get an iterative, accurate solution for the highly non-linear diode characteristic. I would suggest deselecting this option which is present in “Advanced” tab.
For more information, please refer to below MATLAB Answers post:
Kindly refer to the “Advanced” section of the below documentation for more details on “PV array” block: https://www.mathworks.com/help/sps/powersys/ref/pvarray.html
I hope this helps!
Best Regards,
Aishwarya

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