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Patent Searching and Data


Title:
CONTROL METHOD OF MOTOR FOR ELEVATOR SYSTEM
Document Type and Number:
Japanese Patent JP2019199362
Kind Code:
A
Abstract:
To provide an induction motor control method with improved position accuracy during deceleration and stopping.SOLUTION: There are included: a step for outputting an output voltage corresponding to a command frequency of a deceleration level to an induction motor; step S10 for measuring T1 time (a first time) starting from (a first point) when a level sensor receives a self-signal from a first self-signal generator to (a second point) when the level sensor receives a self-signal of a second self-signal generator; step S20 for calculating the actual speed of the induction motor by using the first time; step S25 for determining T2 time (a second time) starting from the second point to the point when the car stops (a third point) by using the actual speed and a predetermined moving distance; and step S30 for adjusting the leveling error by using the second time.SELECTED DRAWING: Figure 5

Inventors:
SON JU-BEOM
Application Number:
JP2019034226A
Publication Date:
November 21, 2019
Filing Date:
February 27, 2019
Export Citation:
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Assignee:
LSIS CO LTD
International Classes:
B66B1/36; B66B1/30; H02P3/00; H02P23/08
Attorney, Agent or Firm:
Hiroyuki Nagai
Nakamura Yukitaka
Satoru Asakura
Takeshi Sekine