Boloar
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Idea: Position-switched three-phase full-wave active rectification
Here's a thought that passed through my head.
My boss works with vertical-axis wind turbines. He has them hooked up to three-phase alternators and a typical diode-bridge rectifier for DC output.
To increase efficiency a bit, one would try active rectification, but I don't think there are any active rectifier products that would be worth the cost for such low-power systems, and much less 3-phase.
The thought is: would it be feasible to set up MOSFETs that would switch on/off based on the physical rotation angle of the alternator? Say, using a Hall-effect sensor trigger or something?
Here's a thought that passed through my head.
My boss works with vertical-axis wind turbines. He has them hooked up to three-phase alternators and a typical diode-bridge rectifier for DC output.
To increase efficiency a bit, one would try active rectification, but I don't think there are any active rectifier products that would be worth the cost for such low-power systems, and much less 3-phase.
The thought is: would it be feasible to set up MOSFETs that would switch on/off based on the physical rotation angle of the alternator? Say, using a Hall-effect sensor trigger or something?
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