Motor control device

Details Motor control device Motor control device

2006-08-01

2006-08-01

Duda, Rina (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S139000, C318S432000, C318S434000, C318S606000, C318S607000, C318S608000, C318S609000, C318S610000, C318S727000, C318S807000, C318S811000

Reexamination Certificate

active

07084603

ABSTRACT:
A motor control device that can reduce electrical noise is provided. A motor control device includes an inverter, a current controller, a high frequency wave superpositioner, and a high frequency wave setter. An inverter applies a current to the motor. A current controller outputs a voltage to the inverter according to a current applied to the motor from the inverter. A high frequency wave superpositioner applies a high frequency wave to the voltage from the current controller as a superpositioned wave to infer a position of a rotor in the motor. A high frequency wave setter varies at least one characteristic of the superpositioned wave applied by the high frequency wave superpositioner.

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