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微型水电

2018-4-22 20:50| 发布者: dymodel| 查看: 415| 评论: 0|原作者: reid

摘要: 微型水电 I am working on a micro hydro system. I am using a 60 series (36 poles) Fisher Paykel motor as a generator and a home made pelton wheel that I made from pvc elbows. The FP is turning about ...
微型水电
I am working on a micro hydro system. I am using a 60 series (36 poles) Fisher & Paykel motor as a generator and a home made pelton wheel that I made from pvc elbows. The F&P is turning about 285 rpm and producing 128v on each phase with a 13 watt light bulb wired into each phase. The system is about 400 feet from my house and I would like to be able to use this power in my home. I am new to all this and not sure where to go from here. I thought about hooking up a preheater to heat water, but don't know if it could be done with the 3 phase AC that the F&K produces. Also I thought about changing the AC to DC with 3 ph rectifier and charge a battery, but the DC voltage produced would be much higher than 12,24 or 48 volts. Could I charge a battery with high voltage DC? Any suggestions would be appreciated. I have read about all kinds of controlers, inverters, MPPTs and other electronic gadgets and now I am totally confused. Hope someone can steer me in the right direction. If anyone is interested, I will be glad to post some pictures, that is if I can figure out how to do it. Thanks
Penstock: 400 ' (buried 4" PVC)
Head: 20'
Flow: Minimum is about 50 gpm; Maximum is 300 gpm (depends on how much rain). Thinking about building a dam to give a constant flow and also increase head to 30'.
I have run several test with different bulbs hooked up to each phase of the 3 phase wild AC. The maximum without stalling is three 13 watt bulbs, one hooked to each phase. Any more begins to stall the turbine. The RPMs of the turbine is 285 RPMs loaded with the three 13 watt bulbs.
Yesterday, I hooked up the GM 3 ph rectifier. Recorded 390 DC volts with no load. I then connected a dead 12 battery. First recorded voltage was 12.1 volts. Subsequent readings continued to increase to 12.6 volts over about 30 min. I didn't really know what I was doing, so I terminated my test. Please let me know if I did anything right or if all was wrong.
I like the idea of using a water heating element, but the AC heating elements that I have access to would be too high wattage and would probably stall my turbine. I don't know about a DC element, are they available in low wattage or would that matter? I also like the idea of a grid tie inverter, but I don't have access to anyone with this expertise in my area. I have read EcoInnovation NZ article on tweaking turbine with washers, but I'm thinking I have other problems before I begin fine tuning. Maybe I'm wrong, don't know.
I am very anxious to see the parts list from Bob. In the mean time I am going to try to attach some pictures of my Micro Hydro. It's pretty crude now, but hope to make improvements as the projects proceeds.
微型水电

GM 3Ph rectifier 

 

F&P generator mounted in plywood box. Used bottom of washing machine for bearing mount. 
 

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