Apparatus and method for controlling motor

Details Apparatus and method for controlling motor Apparatus and method for controlling motor

2006-09-05

2006-09-05

Duda, Rina (Department: 2837)

Electricity: motive power systems

Battery-fed motor systems

C318S095000, C318S132000, C318S254100, C318S432000, C318S434000, C318S609000, C318S700000, C318S701000, C318S727000, C318S807000, C318S809000, C318S812000

Reexamination Certificate

active

07102305

ABSTRACT:
A motor control apparatus includes a direct-current power source and an inverter circuit, which includes a switching element. The motor control apparatus receives a current command value in every control cycle and calculates a current deviation accumulated value by accumulating the current deviation between the received current command value and the actual current value that flows through a coil of a motor. The motor control apparatus then computes a voltage command value in accordance with the current deviation accumulated value and controls the switching timing of the switching element based on the voltage command value. The motor control apparatus judges whether the computed voltage command value exceeds a range of the voltage that can be output from the inverter circuit and causes saturation. If it is judged that the voltage command value is saturated, the motor control apparatus restricts the accumulation of the current deviation.

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