Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1993-06-16
1994-06-21
Wysocki, Jonathan
Electricity: motive power systems
Induction motor systems
Primary circuit control
318800, 318276, H02P 700
Patent
active
053230973
ABSTRACT:
A procedure for producing a speed reference signal for a crane motor control when the converter feeding the motor is controlled by means of at least one manually operated controller. To allow the speed reference signal to be changed, the controller has a control position in which the value of the speed reference signal is changed as a function of time. In order to facilitate more accurate manual control of the motor speed, when the speed of the motor is above a predetermined minimum value, the time derivative of the speed reference signal is changed during acceleration of the motor.
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Kone OY
Wysocki Jonathan
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