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Gizmo

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Joined: 05/06/2004
Location: Australia
Posts: 5078

Posted: 04:28am 02 Jul 2009

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Hey I'm wondering if anyone can shed some light on the operation of those cheap Chinese windmill ( the ones with the noisy fibreglass blades ) controllers. I know the controller is pretty unreliable and dont last very long, but I was wondering how they regulate the output. Is it a shunt controller? If anyone has a pic of the cct board that would help.

Glenn

The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ

RossW
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Joined: 25/02/2006
Location: Australia
Posts: 495

Posted: 07:27am 03 Jul 2009

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I have one here, never used, from my 1KW machine Glenn.

I'll see if I can remember where I threw it and take some pics for you

RossW
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Joined: 25/02/2006
Location: Australia
Posts: 495

Posted: 08:17am 03 Jul 2009

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ok, lousy shots, sorry, but here goes. If you want more detail, let me know and I'll try to take some better shots when I have better light....

GWatPE

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Joined: 01/09/2006
Location: Australia
Posts: 2127

Posted: 07:51am 04 Jul 2009

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the controller above is much different to mine. Mine was from a 24V 300W/500W unit, and uses an AC shorting system. All potted, so no chance to get the cct layout. Mine has no heater.

My most successful system has a combination of diversion heater and then system shutdown process. For my own battery bank I am looking at a system without a plasmatronics unit, as I believe the windmills are not controlled well enough to fully use the battery maintenance routines properly.

Gordon.

become more energy aware

Gizmo

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Joined: 05/06/2004
Location: Australia
Posts: 5078

Posted: 11:53pm 04 Jul 2009

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Thanks for the photos Ross.

I've got one of those circuit boards, minus the bridge rectifier. I think Dennis gave it to me, it was broken. I didn't know it was used for.

The dump resistor is 3 ohms. There's a micro chip, MOSFET driver ic, an awlfull lot of parts for a simple controller.

Glenn

The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ

RossW
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Joined: 25/02/2006
Location: Australia
Posts: 495

Posted: 12:41am 05 Jul 2009

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Yeah, when I originally put up my mill, this controller was near useless. Got nothing (useful) out of it, so built a simply bridge rectifier (as previously posted here I think), which did infinitely better.

As I never seem to be able to make as much power as I use, there wasn't any need for a dumpload controller here.

If you want more detailed pics of this thing, just holler.

I've just imported a couple of 2KW units. Their controllers are much less complex than this one, I'm hoping they work a lot better though! (If not, I can see I'll be building some dumpload controllers for the times I *DO* have surplus power - since I've added 1.2KW PV as well!)

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