Monthly Archives: April 2018
Your Questions About Wind Turbine Generators
William asks…
What are the laws about building wind turbines (generators) in hawaii?
I was thinking about building a Wind turbine for my house, but couldn’t find anything about them legal wise. Is there some kind of permit I need? What’s the max height I can build?
admin answers:
HI
Rooftop wind turbines offer a relatively inexpensive way to participate in the rush to renewable energy. The principle allure is low installation cost. Typically, tower installations for larger turbines add 50 80 to the cost of the system. With a rooftop turbine, an $800 tower is replaced by a $39 roof mounted tripod, or a length of pipe attached to the side of the house.
Mark asks…
Where on earth can I find small wind turbine generators, lets say around 2.5 v?
Where on earth can I find small wind turbine generators, lets say around 2.5 v?
admin answers:
You can easily make one from an old stepper motor out of a printer, or a computer.
Just put a fan or a propeller on the shaft and that’s it. If you want to produce DC, then you will need a rectifier as well.
This will probably take the form of 6 diodes, in order to get the maximum output.
Have a go, it won’t cost anything.
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Your Questions About Wind Generators For Home
Maria asks…
Does anyone know the Fisher Paykel part number to this?
I need the part number to the Fisher & Paykel smart drive motor’s STATOR. I need the one that has 42 coils with 0.8mm wire. This is used for home-built wind generators. Please don’t refer me to a site: you either know the number or you don’t. Thanks.
admin answers:
I believe the whole motor is FP001. Don’t know about just the stator.
Carol asks…
How does an electric inverter used at the tail end of wind generator stay in phase with the power company.?
how does an electric inverter used at the tail end of either home solar panels or wind generator stay in phase with the incoming household current. It would seem to me that if the phase was just slightly out of time with that from the power company, much of the power produced would be lost.
admin answers:
The best inverters use a pulse-width-modulated output and a low-pass power filter for the line frequency (60 Hz or 50Hz). The high voltage DC input is modulated at a rate in the 20-40 kHz range or even higher. The modulation is controlled directly by the line to which the power is fed into. Some of these inverters can run in the high 90% efficiency range.
For the PWM inverter to work, whatever the output of the generator, it must be converted (any phase, any frequency, or even DC) to high voltage DC. This can be done independantly of the line frequency or phase.
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