Title:
HOISTING MACHINE MOTOR CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2022007346
Kind Code:
A
Abstract:
To suppress accumulation of inclination of a car caused by difference in sheave diameters and the like along with operation.SOLUTION: A hoisting machine motor control system in an elevator installed with at least two hoisting machines in a moving path of a car, includes a first speed controller inputting a deviation between a first rope feeding speed and a speed command value and outputting a first torque command value, a second speed controller for inputting a deviation between a second rope feeding speed and a speed command value and outputting a second torque command value, a first current controller for controlling a first motor current value fed to a motor of a first hoisting machine in accordance with the first torque command value, a second current controller for controlling a second motor current value fed to a motor of a second hoisting machine in accordance with the second torque command value, and a feedback element. The feedback element inputs the difference between the first torque command value and the second torque command value into the first speed controller and the second speed controller.SELECTED DRAWING: Figure 3
Inventors:
SHIMURA ITSUKI
ARAKAWA ATSUSHI
ARAKAWA ATSUSHI
Application Number:
JP2020110264A
Publication Date:
January 13, 2022
Filing Date:
June 26, 2020
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B66B1/30; B66B9/10; B66B11/08
Attorney, Agent or Firm:
Polaire Patent Business Corporation