Title:
BUS VOLTAGE CONTROL METHOD AND APPARATUS, AND ELEVATOR CONTROLLER AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/141272
Kind Code:
A1
Abstract:
The present application relates to a bus voltage control method and apparatus, and an elevator controller and a storage medium. The method comprises: an elevator controller determining, from among a plurality of bus voltage control signals for controlling a bus voltage of an elevator, a target bus voltage control signal matching the current operating state; and inputting the target bus voltage control signal into a frequency converter of the elevator. By using the method, bus voltage control signals cannot be repeatedly switched in the same operating state, such that excessive adjustment of a bus voltage can be avoided, thereby avoiding the occurrence of the problems of distortion of a power supply voltage and the output torque oscillation of an electric motor.
Inventors:
GUO WEI (CN)
WANG WENJUN (CN)
GUO ZHIHAI (CN)
WANG WENJUN (CN)
GUO ZHIHAI (CN)
Application Number:
PCT/CN2020/141717
Publication Date:
July 07, 2022
Filing Date:
December 30, 2020
Export Citation:
Assignee:
HITACHI ELEVATOR CHINA CO LTD (CN)
International Classes:
B66B25/00; B66B27/00; H02J7/00
Foreign References:
| CN110436283A | 2019-11-12 | |||
| CN101360674A | 2009-02-04 | |||
| CN109879148A | 2019-06-14 | |||
| US5420491A | 1995-05-30 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
Download PDF: