CODEWITHSUNDEEP
pythonpvlib
Abed
Abed

Reputation: 317

Can PVLIB be used for hotspot modelling?

I am still getting used to PVLIB and figuring out how to use the methods associated with it. I'd like to be able to model the growth of localised hotspots in a PV module due to current mismatch that results from partial shading.

I'd be surprised if I was the first person to do this, so I'm wondering what other solutions exist to do this in a straightforward way from PVLIB.

Upvotes: 1

Views: 173

Answers (2)

Mark Mikofski
Mark Mikofski

Reputation: 20198

Use PVMismatch. It doesn't do self heating, but it will calculate mismatch for arbitrary cell patterns and string layouts with arbitrary irradiance, temperature and cell properties. Once calculated you can iterate temperature to find equilibrium

Upvotes: 1

adr
adr

Reputation: 2071

You can use the single-diode model functions from pvlib to build up the electrical simulation for this scenario, and thereby determine how much electrical power the affected cell absorbs.

There isn't a thermal model in pvlib to tell you how hot it would get, but as a first approximation you could adapt one of the existing module/cell temperature functions quite easily. There is a local variable called heat_input to which you can add the electrical power.

Upvotes: 1

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