CONTROLLER AND CONTROL METHOD OF ROTATING MACHINE, AND ROTATING MACHINE UNIT EQUIPPED WITH CONTROLLER

摘要

PROBLEM TO BE SOLVED: To provide a controller and a control method of a rotating machine that operates the rotating machine stably and efficiently with a desired output, and to provide a rotating machine unit.

SOLUTION: A controller 12 includes an output determination section 12a which determines whether the output required for driving a rotating machine 10 is larger than an electric motor driving force addition reference output which is preset at the high output section in the stable output region of a turbine 20, and a drive source command section 12b which commands a drive source to start addition of driving force of an electric motor 30 if a determination is made at the output determination section 12a that the output required for driving a rotating machine is larger than the reference output.

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