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Hi Clyde38, Yes I have done a bit more reading around the subject now and have gladly found that it can be done! For the first prototype I will be aiming to produce a PM device, (that most likely acts just as a motor for simplicity) to Spin at speeds up to 40,000 rpm and produce power around...

Hi LiteYear, Thanks for your reply, very useful information! Do you know of any companies that supply these grid tie inverters? Thanks, John

Hi Carl, Thanks very much for your comprehensive reply! Your 'H' design is a very useful concept as far as machine adaptability is concerned. My project is actually slightly simpler than that initially, in that my prototype is not required to be able to switch from motor to generator or vice...

Hi crshears and imcjoek! Apologies, I should have given a better description of what I am trying to do! You are correct crshears, a turbine does extract energy from a working fluid and convert it to mechanical work, my wording was incorrect. My task is to design a rotor and stator...

Thanks for the suggestions, gearing may be an option!

Hi Guys, I'm currently undertaking a project to design and build a high speed (approx 100,000 rpm) electric motor to drive a micro turbine. My skill are in the mechanical design side of things and I am afraid I am a complete novice when it comes to electric motor types and suitable...