Re: [TRNSYS-users] A problem in modeling a Stand Alone PV Station

[David BRADLEY <d.bradley@tess-inc.com>]

Dear Binbin Ge,
  The PV module requires not only total but beam and diffuse radiation as well as incidence angle. By leaving the beam and diffuse radiation inputs to type94 unconnected, the model takes these to be constantly zero and all the radiation falling on the module is assumed to be ground reflected. If you are able to generate beam and diffuse radiation (as well as total) then you should include them in your data file and read these with your Type9 weather data reader. Note, I am a little confused when you say that the weather can be read by Type109 but in your simulation, it is being read by a Type9. If you cannot generate beam and diffuse then somehow you will need to generate the total on the horizontal then use a type16 radiation processor to compute an estimate of the split between beam and diffuse radiation.
Best,
 David

On 12/3/2012 07:18, 葛彬彬 wrote:

Dear sir/Madam:

       I am a graduate student student from Shanghai Jiao Tong University, Shanghai,China. These days I am using the Trnsys 16 to simulate a stand alone PV station.But as I am going with the program, some errors come up. The weather data is loaded by type 109 and it can read the data rightly. And I am using type94a to simulate the PV array. But for a 900Wp PV station, the output is quite low. I am confused about the problem. Please help me to check the model attached in the email.

       Thank you very much!

       Best 

Regards!

Binbin Ge

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