measuring power of solar panels - Page 4 - Electronic Circuits Projects Diagrams Free

KMoffett · 17th April 2009, 07:53 PM

umer27,

This is a circuit that I built for a Physicist to determine MPP of some small 12V/65W research solar panels. The control and outputs are interfaced to a LABVIEW program through National Instruments AD/DA boards. The Datel DTL-24A is a voltage controlled electronic load.
http://www.murata-ps.jp/products/power/ds/dtl24a.pdf
The program periodically sweeps the load from Vo to Is.
According to him, the MPP is Vo x Is x K.
K =~0.5 to 0.7, depending on the panel type.

Ken

Oh, by the way they aren't cheap: DTL24A They were $250 when I bought them.

Mr RB · 18th April 2009, 01:06 PM

Quote:

Originally Posted by smanches

..... After the switcher, the voltage is usually being held at a steady level, so you only have to track the current to the load.

That makes it a lot easier.

I'm sure I said that.

Erika111 · 14th September 2009, 07:43 AM

Hello friends,

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Mr RB · 14th September 2009, 11:19 PM

Did we just get SPAMMED????

I feel so dirty....

KMoffett · 15th September 2009, 01:26 AM

Now this is real spam: YouTube - Monty Python - Spam

Ken

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17th April 2009, 07:53 PM	#46
KMoffett	umer27, This is a circuit that I built for a Physicist to determine MPP of some small 12V/65W research solar panels. The control and outputs are interfaced to a LABVIEW program through National Instruments AD/DA boards. The Datel DTL-24A is a voltage controlled electronic load. http://www.murata-ps.jp/products/power/ds/dtl24a.pdf The program periodically sweeps the load from Vo to Is. According to him, the MPP is Vo x Is x K. K =~0.5 to 0.7, depending on the panel type. Ken Oh, by the way they aren't cheap: DTL24A They were $250 when I bought them. Attached Thumbnails __________________ "To invent, you need a good imagination and a pile of junk." Thomas A. Edison (1847 - 1931) Last edited by KMoffett; 17th April 2009 at 08:01 PM. Reason: Added vendor source.

14th September 2009, 07:43 AM	#48
Erika111	Hello friends, If you already know what type, make or specification of solar panel you're looking for, then we suggest that you take a visit to Hardy Solar Home Steader 4 kW off grid energy genverter system, who offers one of the best ranges of solar panels in the USA available for purchase today. Many people today are choosing to purchase solar panels in order to receive a very cheap source of electricity. 1,500 Watt off grid Solar Panel System Free Shipping $5,153. • Nine name brand made in USA 170 Watt solar panels • One Outback Flex Max 60 charge controller • One 30' MC cable (cut in 1/2) • One MidniteSolar three string combiner box • Three 15 Amp DC circuit breakers • Free Permit ready drawings PDF • Free shipping __________________ off the grid

14th September 2009, 11:19 PM	#49
Mr RB	Did we just get SPAMMED???? I feel so dirty....

15th September 2009, 01:26 AM	#50
KMoffett	Now this is real spam: YouTube - Monty Python - Spam Ken __________________ "To invent, you need a good imagination and a pile of junk." Thomas A. Edison (1847 - 1931) Last edited by KMoffett; 15th September 2009 at 01:28 AM.