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Small scale solar MPPT wins 21% | 47 comments (47 topical, 0 editorial)

Re: Small scale solar MPPT wins 21% (3.00 / 0) (#30)
by scottsAI (user name at eml dot cc) on Mon Sep 15th, 2008 at 06:02:05 PM MST
(User Info)

Well another day. Two problems came along Sunday.
First, lost power for 20 hours did not get to finish it last night as expected.
My backup power covers lighting and Water... no computer or Internet.

Design problems, Inductor has min and peak current, battery will see average current. Panel will deliver average current so inductor does not get "charged" up to peak current. By adding Cap on input fixes this. Problem inductor can 'take' more current for a while than the panel can deliver, making the software more complex. For a while did not think it had a solution. Figured it out... I think!-)

Hold on for another day or two OK?

Have fun,
Scott.

[ Parent ]

Re: Small scale solar MPPT wins 21% (3.00 / 0) (#31)
by elt on Tue Sep 16th, 2008 at 05:51:32 PM MST
(User Info)

I'm glad to hear that you had some backup power and that everything is okay. We were lucky this time, just a few small branches and leaves.

But software? I thought you could do one this with an op-amp and couple of caps ... :-)

- Ed.

[ Parent ]

Small scale solar MPPT wins 21% | 47 comments (47 topical, 0 editorial)

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