Or even a single phase one?
Working on any speed (1% ->50% the synchronous RPM) + Grid tie, single and 3 phase alike.
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Actually, induction machines are commonly used in wind turbines, and they do not receive grid excitation. The trick is to connect the the stator to some capacitors - this will set up a resonance with the inductors and provide the magnetization necessary for generation.
Someone did: http://www.physicsforums.com/showthread.php?t=3821The key-word is self-exciting, but I don't find a lot of information.L
Thanks for the info, I found an other site that makes it sound easy. http://www.qsl.net/ns8o/Induction_Generator.html
Yes that is a better link - best wishes for yours - be sure to publish an Instructable eh?
. As a rule-of-thumb, squirrel-cage motors won't work as generators. It can be done, but just not very practical.
Thanks, i know it's not the best idea but ive got a lot of them lying around.