Motor control device and air conditioner using same
A technology of motor control and motor, applied in the direction of controlling electromechanical transmission, controlling generator, controlling electromechanical brake, etc., can solve the problems of high cost, complicated structure of motor and fan, etc., and achieve the effect of reducing sound
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[0023] Embodiments for implementing the present invention will be described below with reference to the drawings. First, refer to Figure 1 to Figure 7 A motor control device according to a first embodiment of the present invention will be described.
[0024] figure 1 It shows the internal structure of the motor control device 11 of the first embodiment of the present invention, and the motor control device 11 , a DC power supply 12 , and a three-phase AC synchronous motor (abbreviated as "motor" or "three-phase motor" as appropriate) 13 A graph of the correlation with the load (fan) 14.
[0025] exist figure 1 Among them, the motor control device 11 is configured to include an inverter 15 as a DC-AC power converter, and a control device 17 that controls the inverter 15 .
[0026] In addition, the control device 17 is configured to include a PWM (Pulse Width Modulation: Pulse Width Modulation) pulse generation unit 22, a vector control unit 18, a motor current sign informa...
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