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 Post subject: Inverter Clipping LossesPostPosted: Thu Jul 13, 2017 8:15 pm

Joined: Mon Feb 29, 2016 8:02 pm
Posts: 8
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.

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 Post subject: Re: Inverter Clipping LossesPostPosted: Fri Jul 14, 2017 12:58 am

Joined: Tue Oct 18, 2016 3:31 am
Posts: 303
What is the inverter?

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 Post subject: Re: Inverter Clipping LossesPostPosted: Fri Jul 14, 2017 3:31 pm

Joined: Mon Feb 29, 2016 8:02 pm
Posts: 8
It's a 1500V central inverter.

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 Post subject: Re: Inverter Clipping LossesPostPosted: Fri Jul 14, 2017 6:12 pm

Joined: Tue Oct 18, 2016 3:31 am
Posts: 303
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.

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 Post subject: Re: Inverter Clipping LossesPostPosted: Fri Jul 14, 2017 7:05 pm

Joined: Mon Feb 29, 2016 8:02 pm
Posts: 8
That is a really good point and most likely the issue. Thanks for the input!

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 Post subject: Re: Inverter Clipping LossesPostPosted: Wed Aug 16, 2017 9:47 pm

Joined: Tue Jun 13, 2017 7:02 pm
Posts: 2
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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