Permanent magnet DC motors

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The main obstacle for making domestic wind turbine is lack of proper motors in India.

My first target is to search proper , durable and most important cheap, affordable motor for wind turbine. Ig fail to search readymade such type of motor then learn technology and make one by yourself.

Permanent magnet DC motors work as generators, but they weren’t designed to be generators. So they aren’t great generators. Some types of motor are a lot worse than others. When used as generators, motors generally have to be driven far faster than their rated speed to produce anything near their rated voltage. So what you are looking for is a motor that is rated for high DC voltage, low rpms and high current. Steer away from low voltage and/or high rpm motors. You want a motor that will put out over 12 Volts at a fairly low rpm, and a useful level of current. So a motor rated for say 325 rpm at 30 Volts when used as a generator, could be expected to produce 12+ volts at some reasonably low rpm. On the other hand, a motor rated at 7200 rpm at 24 volts probably won’t produce 12+ volts as a generator until it is spinning many thousands of rpm, which is way too fast for a wind turbine. So shop for motors accordingly.

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