Patent ID: 11971045
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 13:
14. The turbo compressor according to claim 1,
wherein the controller issues, as respective ones of the motor power commands,
a command controlling the power source to generate a voltage that increases the driving magnetic flux BM in the drive support unit to the magnetic flux represented by BMmax to generate the driving torque corresponding to the maximum torque load in the predetermined operating region and simultaneously decreasing the supporting magnetic flux BS in the drive support unit, and
a command issued in response to the turbo compressor operating in a surging region of the predetermined operating region that controls the power source to generate a voltage that increases the supporting magnetic flux BS in the drive support unit to the magnetic flux represented by BSmax to support the maximum radial load of the drive shaft in the predetermined operating region.