Patent ID: 11929694
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The machine learning apparatus according to claim 7, further comprising:
a voltage detector to detect the DC bus voltage and output a bus voltage detection value; and
a reward calculation data acquirer to which the bus voltage detection value, the frequency estimation value, and the effective current value are inputted, the reward calculation data acquirer obtaining reward calculation data that is at least one of an amount of increase in pulsation width of the bus voltage detection value, an amount of increase in pulsation width of the frequency estimation value, an amount of increase in pulsation width of the effective current value, and an amount of increase in the bus voltage detection value, wherein
the model generator includes:
a reward calculator to calculate a reward for a combination of the value indicating the length of the current control period, the value indicating the length of the magnetic-flux control period, the frequency estimation value, and the effective current value, on a basis of the reward calculation data; and
a function updater to update a function for obtaining the value indicating the length of the current control period and the value indicating the length of the magnetic-flux control period from the frequency estimation value and the effective current value, according to the reward, and
the function updater outputs the learned model generated as a result of updating the function.