Title:
MOTOR DRIVE DEVICE AND METHOD, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2016/187883
Kind Code:
A1
Abstract:
A motor drive device and method, and a motor. The motor drive device comprises: a CLARK converter (17); a PARK converter (18); a first subtracter (21) for obtaining a direct axis current difference; a counter electromotive force detection module (16) for acquiring a current counter electromotive force according to a quadrature axis current component, a direct axis current component, a quadrature axis voltage component and a direct axis voltage component in a static coordinate system; a counter electromotive force generation module (15) for generating a pre-set counter electromotive force according to a voltage adjustment signal; a second subtracter (22) for obtaining a counter electromotive force difference; a counter electromotive force controller (19) for outputting a pre-set quadrature axis current value according to the counter electromotive force difference; a third subtracter (23) for obtaining a quadrature axis current difference; a current controller (4) for outputting the direct axis voltage component and the quadrature axis voltage component; a voltage limiter (5) for outputting a direct axis voltage and a quadrature axis voltage in the static coordinate system; and a PWM controller (6) for outputting a three-phase alternating-current voltage, forming a closed loop control circuit by feeding back the counter electromotive force so as to drive and control a motor current, thereby achieving the control over the motor.
Inventors:
WANG CHAO (CN)
ZHAO XIAOAN (CN)
GONG LIMING (CN)
CHEN JINTAO (CN)
ZHAO XIAOAN (CN)
GONG LIMING (CN)
CHEN JINTAO (CN)
Application Number:
PCT/CN2015/080115
Publication Date:
December 01, 2016
Filing Date:
May 28, 2015
Export Citation:
Assignee:
GUANGDONG WELLING MOTOR MFG CO (CN)
International Classes:
H02P21/14
Foreign References:
| CN104836505A | 2015-08-12 | |||
| CN103117703A | 2013-05-22 | |||
| CN103532464A | 2014-01-22 | |||
| CN104022708A | 2014-09-03 | |||
| CN103997270A | 2014-08-20 | |||
| CN103401493A | 2013-11-20 | |||
| CN102025313A | 2011-04-20 | |||
| US20110298405A1 | 2011-12-08 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (Old Shenzhen Special Zone Newspaper BuildingNo. 1014 Shen Nan Rd.C, Shenzhen Guangdong 8, CN)
Download PDF:
Previous Patent: CONCEALED TYPE WIRELESS CARD SWIPING DEVICE AND POS MACHINE
Next Patent: STAMPING DEVICE OF ELECTRONIC ELEMENT
Next Patent: STAMPING DEVICE OF ELECTRONIC ELEMENT