Patent Document ID: 20170063261
Application ID: 15241002
Patent Flag: 0

Claim One:
1. A machine learning apparatus configured to learn conditions that are associated with an excitation current command for magnetic flux control of a motor performed by a motor control apparatus and excitation start timing, which corresponds to timing to start increasing a magnetic flux by the magnetic flux control comprising: a state observation unit that observes a state variable including at least one of data relating to magnetic flux increase lead time that may be required from timing when a start command is issued for a predetermined operation mode until the magnetic flux of the motor reaches the maximum magnetic flux corresponding to the predetermined operation mode and data relating to whether an overheat alarm indicating that the motor has overheated has been triggered or not; and a learning unit that learns conditions that are associated with an excitation current command increment to be added to the excitation current command for the motor, which is preset for an operation mode before execution of the predetermined operation mode, and an excitation start timing adjusting amount for adjusting the excitation start timing, which is preset for the predetermined operation mode, in accordance with a training data set including the state variables.