Discrepancy between offline simulation and RTBox2 real-time test results for photovoltaic MPPT model

[Munadir_Ahmed]

Hi liuwenj,

That is correct. One slight modification to your statement: currently the Signal Switch is only changing the output of the delay unit. It does not affect the input. If you need to control what is being fed into the delay element, then the switch needs to be placed before the z⁻¹ block.

@liuwenj

But in this case, the simulation results are wrong.

I ran the simulation file you provided and observed the following:

• When nRst = 0, the output is correctly initialized to 0.1 / 0.5, as expected.
• When nRst = 1, the output correctly comes from the z⁻¹ block.

This behavior is consistent with your stated implementation.

It is possible I am misunderstanding the intended behavior. Could you clarify what you were expecting to see differently in the results?