Speed controller for synchronous machine
A speed control device, synchronous motor technology, applied in motor generator control, AC motor control, single motor speed/torque control, etc. current, etc.
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[0042] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0043] Embodiment 1
[0044] Fig. 1 is a block diagram showing a system configuration of Embodiment 1 of a speed control device for a synchronous motor according to the present invention. In Fig. 1, the speed control device of the synchronous motor is constituted as having a generator for providing the rotational speed command ωr to the synchronous motor 5 * The revolution command ωr * The number of revolutions instruction generator 1 of computing; The AC applied voltage of synchronous motor 5 is calculated, according to this calculation result, generates the pulse width modulation signal (PWM signal) as pulse width control signal, is applied to the controller 2 on the inverter 3; Inverter 3 driven by this PWM signal; DC power supply 4 to supply power to inverter 3; current detector (inverter current The detector) 6 is connected to the AC output side of the inverte...
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