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VECTOR CONTROL DEVICE FOR ELECTRIC MOTOR, ELECTRIC MOTOR, VEHICLE DRIVE SYSTEM, AND VECTOR CONTROL METHOD FOR ELECTRIC MOTOR
VECTOR CONTROL DEVICE FOR ELECTRIC MOTOR, ELECTRIC MOTOR, VEHICLE DRIVE SYSTEM, AND VECTOR CONTROL METHOD FOR ELECTRIC MOTOR
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机译:电动机的矢量控制装置,电动机,车辆驱动系统以及电动机的矢量控制方法
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摘要
A vector control device that controls an electric power converter 2 that converts DC power to AC power and supplies the AC power to an AC electric motor 1, includes a vector control unit 3 computing an output voltage output from the electric power converter 2 according to vector control based on torque command and flux command and generating a PWM signal for controlling the electric power converter based on the output voltage, a first flux-command generation unit 11a generating a flux command for asynchronous PWM mode, and a second flux-command generation unit 11b generating a flux command for synchronous PWM mode. When an output frequency of the electric power converter 2 is lower than predetermined value, a flux command generated by the first flux-command generation unit 11a is input to the vector control unit 3, and when the output frequency of the electric power converter 2 is equal to or higher than predetermined value, a flux command generated by the second flux-command generation unit 11b is input to the vector control unit 3.
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