Title:
MOTOR CURRENT SAMPLING METHOD, FREQUENCY CONVERTER, TERMINAL DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/011709
Kind Code:
A1
Abstract:
A motor current sampling method, a frequency converter, a terminal device, and a storage medium. The motor current sampling method comprises: acquiring a delay setting parameter (S10); when a preset delay condition is met, executing a sampling delay task according to the delay setting parameter, wherein the delay time corresponding to the sampling delay task is equal to the elapsed time of a three-phase current analog signal of a target motor in a filtering process (S20); and performing AD sampling on the three-phase current analog signal of the target motor on the basis of a preset sampling trigger rule (S30).
More Like This:
| JP2007014092 | MOTOR CONTROL SYSTEM |
| JP2008172983 | BRUSHLESS MOTOR, CONTROL METHOD THEREOF, AND CONTROLLER THEREFOR |
| JPS58112482 | CONTROL SYSTEM FOR COMMUTATORLESS MOTOR |
Inventors:
CAI CHANGJUN (CN)
TAO XIAODONG (CN)
SU ZHAOYI (CN)
CHEN XIJUN (CN)
GAO WEI (CN)
YUAN HAOZHI (CN)
CHEN GANG (CN)
NING SHAOAN (CN)
SHEN TIANLIANG (CN)
LU YONG (CN)
WEI DAOFENG (CN)
LI PENG (CN)
CHEN YIN (CN)
CHEN DONG (CN)
TAO XIAODONG (CN)
SU ZHAOYI (CN)
CHEN XIJUN (CN)
GAO WEI (CN)
YUAN HAOZHI (CN)
CHEN GANG (CN)
NING SHAOAN (CN)
SHEN TIANLIANG (CN)
LU YONG (CN)
WEI DAOFENG (CN)
LI PENG (CN)
CHEN YIN (CN)
CHEN DONG (CN)
Application Number:
PCT/CN2022/113656
Publication Date:
January 18, 2024
Filing Date:
August 19, 2022
Export Citation:
Assignee:
GUANGZHOU METRO GROUP CO LTD (CN)
JIANGSU KINGWAY TRANSP CO LTD (CN)
JIANGSU KINGWAY TRANSP CO LTD (CN)
International Classes:
H02P6/28
Foreign References:
| CN106546809A | 2017-03-29 | |||
| CN107356799A | 2017-11-17 | |||
| CN105450094A | 2016-03-30 | |||
| CN110780107A | 2020-02-11 | |||
| CN113238091A | 2021-08-10 | |||
| US20180091063A1 | 2018-03-29 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF: