 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Windmills : Low cost F&P using the Smart Controller
| Author | Message | ||||
BobMann Senior Member  Joined: 30/06/2011 Location: United StatesPosts: 134 |
Low cost F&P using the Smart Controller Hello I had been asked by one off my buyers to build a low cost Smart Drive for a Short VAWT they are bringing to market. Here are some tests with it a 60 stock stator and using the Smart Controller right in to a solar brand Grid tie I just did some testing on the Low cost Smart Drive it went well. This one is using the 5 lug hub same axle and that stator is still stock just set up to swap out coil compensation. I do have a 4 lug hub setup but the cost saving is like only $ 17 and I have had some bearings fail over time on the small hub. It has no cogging, light weight, works very good. Noiseless I started off in a Delta wiring and ran it right in to the Grid tie it was a 600 watt 50 volt sun unit. All Watt reading were into the grid the grid tie uses about 7 watts to run. Some will say the Watts are down but we are feeding a grid tie a lot deviant than loading a low battery bank. Delta RPM .. Watt .Loaded Volts 82 40 .. 30 104 .. 67 . 27 165 115 39 208 .. 102 28 Star RPM ------- Watts----- Loaded Volts 104- ---------- 65------------47 - ----------- 60--------------44 Smart controller on 197------------ 80------------37 ------------ 115--------------36 Smart Controller on 209- ---------- 92-------------44 ------------- 114--------------44 Smart Controller on 400 ----------- 88--------------39 ----------- 124--------------39 Smart Controller on ---------------------------- 424 Open voltage This is the first controller with old software I would swear the Bridgeport motor would sound like it freed up when I turned on the Smart Controller. I will place a watt meter on one of the 220 lines next time to see if it uses less power when I turn on the Smart Controller. 
Bob Mann |
||||
Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Good test results there Bob. These are good figures, and clearly display how the controller is increasing the power at rpm. Yes, measuring the current drawn by the bridgeport motor is a good idea, you can get a better idea of how the Smart Controller improves efficiency. Keep us posted. Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
||||
Perry Senior Member Joined: 19/11/2009 Location: Posts: 190 |
Wait a minute now Bob, that looks suspiciously like the Perry Smart Drive! Are you going to rename it? I'm just breaking your stones a little bit and joking. I think you are more in danger from your wife when she keeps finding her pie tins missing. Dropping the weight of the brake drum does help doesn't it. I think your numbers don't look too bad at all and good luck with your project. Your attention span does seem much greater than mine. Glad to see you are making progress. I need to get me one of those controllers. Perry Here's a link to my build thread if others are interested. http://www.vawts.net/t44913078/low-buck-smart-drive/ 
|
||||
| BobMann Senior Member Joined: 30/06/2011 Location: United StatesPosts: 134 |
Hello I reran the test this time in to a battery bank that made up of 2 new 12 volt big ones and two 12 old car ones for a total of 48 volt. I ran it with a rectifier right into the battery's It is a lot easier to spin up by hand on start up witch is how I thought the battery would act like. The Volts stayed in the 50 to 53 range RPM watts 78 35 98 61.28 155 89.59 197 100.89 397 115.45 670 118.14 Next time I will use the new Smart Controller to see if it helps bring up the power. The point of this low cost Smart Drive is I am bulding a 2 ft 3 blade C floater VAWT for testing Bob Mann |
||||
 Print this page |
