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Inverter Clipping Losses
https://forum.pvsyst.com/viewtopic.php?f=25&t=3055
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Author:  jromme [ Thu Jul 13, 2017 8:15 pm ]
Post subject:  Inverter Clipping Losses

How are clipping losses calculated in PVsyst?

Let's say the nominal and maximum power in your OND file is 3125kW. At a particular hour, the power available at the output of the inverter = 3115 kW and the clipping loss = 9.25 kW. The sum of these equals 3124.25 which is less than the nominal power of the inverter. Why is this specific hour being clipped by PVsyst?

Thanks.

Author:  dtarin [ Fri Jul 14, 2017 12:58 am ]
Post subject:  Re: Inverter Clipping Losses

What is the inverter?

Author:  jromme [ Fri Jul 14, 2017 3:31 pm ]
Post subject:  Re: Inverter Clipping Losses

It's a 1500V central inverter.

Author:  dtarin [ Fri Jul 14, 2017 6:12 pm ]
Post subject:  Re: Inverter Clipping Losses

Without knowing the model and seeing the data it could be temperature derating if it's like a PE 1500V. If greater than 25C your nameplate changes.

Author:  jromme [ Fri Jul 14, 2017 7:05 pm ]
Post subject:  Re: Inverter Clipping Losses

That is a really good point and most likely the issue. Thanks for the input!

Author:  anil875052 [ Wed Aug 16, 2017 9:47 pm ]
Post subject:  Re: Inverter Clipping Losses

Quote:
That is a really good point and most likely the issue. Thanks for the input!
Hello Sir,
I also have interest to Know either "Inverter Loss over nominal inverter power" and "Clipping loss" are same or different.
If both are same or different ,Please clarify both.

Thanks and Regards

Anil

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