Patent ID: 11858786
Assignee: POWER ELECTRONICS INTERNATIONAL, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B  F  G | IPC B  F  G

Claim 31:
32. A method for dampening torsional oscillation of a suspended object that rotates in a horizontal plane in a system that includes a motor control, the method comprising:
providing a memory having a memory capacity, a portion of the memory capacity including a mass-dependent value of the object or of rotating parts of the system and an algorithm that calculates a torsional oscillation dampening signal using the mass-dependent value, and a processor that is configured to store and retrieve the mass-dependent value and the algorithm from the memory;
receiving, at the processor, a command signal from an input/output (IO) device;
retrieving, via the processor, the mass-dependent value and the algorithm from the memory in response to receiving the command signal from the IO device;
calculating, via the processor, the torsional oscillation dampening signal as a function of the stored mass-dependent value using the algorithm;
transmitting the calculated torsional oscillation dampening signal to the motor control; and
operating the motor, via the motor control, based at least in part on the calculated torsional oscillation dampening signal thereby dampening torsional oscillation of the object in the horizontal plane.