How Can a PM Generator Be Reconfigured to Drive a Turbine Compressor?

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SUMMARY

The discussion centers on the reconfiguration of a permanent magnet (PM) generator to function as a motor for driving a turbine's compressor stage. It is established that while PM generators operate effectively as dynamos, they require specific modifications to serve as motors. The key to this transformation lies in implementing commutation techniques, typically found in brushless DC (BLDC) motors, which utilize Hall Effect sensors or induced voltage sensors to manage stator current based on rotor position.

PREREQUISITES
  • Understanding of permanent magnet generator principles
  • Knowledge of brushless DC (BLDC) motor operation
  • Familiarity with commutation techniques in electric motors
  • Basic concepts of rotor and stator dynamics
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  • Research the principles of brushless DC (BLDC) motor design
  • Study Hall Effect sensors and their applications in motor control
  • Learn about induced voltage sensors and their role in commutation
  • Explore the dynamics of rotor angle management in electric motors
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Electrical engineers, motor control specialists, and anyone involved in the design and optimization of turbine-driven systems will benefit from this discussion.

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URGENT: PM Generator in Reverse

If you have a permanent magnet generator being driven by a turbine and the generator outputs some power level, how would the configuration of a generator change if it is suppose to drive a turbine's compressor stage with the same power?

I think the meaning is how would one change the generator to a motor that supplies the same output power.

I just don't understand applying electrical power to the stator would make a PM rotor move.

Any details would be appreciated.
 
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"Generators" with permanent magnet (PM) rotors run well as dynamos but not as motors. The dynamo would require some way of commutating (reversing) the stator current depending on the rotor angle. This is done in BLDC (brushles dc) motors that either have a Hall Effect sensor, or use a stator coil induced voltage (from rotor) sensor to commutate the stator current.
Bob S
 

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