| 摘要 |
A voltage vector overmodulation technique considering a counter electromotive force of a motor with respect to a voltage applied to the motor in a transient state during the operation of the motor, selects a voltage having the least logarithmic difference between a counter electromotive force according to the voltage applied to the motor and a command voltage as an application control voltage of the motor. Thus, since a response voltage to correspond to a transient state during the operation of the motor is selected considering the dynamic characteristic of the motor, a voltage most appropriate for the operation of the motor can be selected. Also, the current controller and the speed controller of the motor can stably be operated and maximum use of the available torque of the motor is possible.
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