Title:
PREDICTIVE THRUST CONTROL METHOD AND SYSTEM OF ARBITRARY DOUBLE VECTOR MODEL FOR LINEAR INDUCTION MOTOR
Document Type and Number:
WIPO Patent Application WO/2020/173064
Kind Code:
A1
Abstract:
A predictive thrust control method and system of an arbitrary double vector model for a linear induction motor, which relate to the technical field of linear induction motor control. In view of the shortcomings of traditional models for predicting thrust control, only one voltage vector is applied in each switching cycle, resulting in the problem of relatively high thrust and magnetic flux linkage pulsation. By means of combining double vector modulation algorithms, two voltage vectors are used in one cycle to improve modulation accuracy, so that the pulsation amplitude may be reduced and the running performance of the motor is improved. The addition of the double vector modulation strategy increases the complexity of the algorithms, and the calculation and solution process is too complicated. At the same time, a simplified search process is further provided to replace traditional repeated calculation and comparison methods without the complicated online calculation process, which thereby simplifies the implementation process of the algorithms in the actual system.
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Inventors:
XU WEI (CN)
ZOU JIANQIAO (CN)
LIU YI (CN)
DONG DINGHAO (CN)
ZOU JIANQIAO (CN)
LIU YI (CN)
DONG DINGHAO (CN)
Application Number:
PCT/CN2019/103205
Publication Date:
September 03, 2020
Filing Date:
August 29, 2019
Export Citation:
Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
H02P21/14; H02P21/05; H02P25/062
Foreign References:
| CN109728757A | 2019-05-07 | |||
| CN108964549A | 2018-12-07 | |||
| CN108880374A | 2018-11-23 | |||
| CN102427325A | 2012-04-25 | |||
| CN106452250A | 2017-02-22 | |||
| CN108832859A | 2018-11-16 | |||
| US20170244344A1 | 2017-08-24 | |||
| US20180212541A1 | 2018-07-26 |
Attorney, Agent or Firm:
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY PATENT AGENCY CENTER (CN)
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