Title:
DUAL THREE-PHASE MOTOR HIGH-PRECISION MODEL PREDICTION CURRENT CONTROL SYSTEM AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/065986
Kind Code:
A1
Abstract:
The present invention relates to the technical field of multi-phase motor control. Disclosed are a dual three-phase motor high-precision model prediction current control system and a control method. According to the present invention, a traditional 12 virtual voltage vector control set is expanded, and 24 virtual voltage vectors with equal amplitude and uniform phase angles are designed without losing a voltage utilization rate, so that the control precision is improved. Provided is a duty cycle calculation method based on a minimum error. Even under a single effective virtual voltage vector, the current in the d and q axes can be tracked at the same time, and it is ensured that an optimal duty cycle is outputted. In addition, the process of traversing all voltage vectors in prediction control is simplified, and the calculation burden of an algorithm is reduced. According to the present invention, the precision of model prediction control is greatly improved by expanding a control set and reducing a duty cycle calculation error, fifth-order and seventh-order harmonics are reduced, and the torque ripple is improved. Moreover, it is ensured that even under 24 voltage vectors, the calculation amount is still low, and the execution efficiency of the algorithm is improved.
Inventors:
ZHAO WENXIANG (CN)
CUI JIA (CN)
JI JINGHUA (CN)
HUANG LINSEN (CN)
DU YUXUAN (CN)
CUI JIA (CN)
JI JINGHUA (CN)
HUANG LINSEN (CN)
DU YUXUAN (CN)
Application Number:
PCT/CN2022/132829
Publication Date:
April 04, 2024
Filing Date:
November 18, 2022
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
H02P6/10; H02P6/28
Foreign References:
| CN114172412A | 2022-03-11 | |||
| CN113992095A | 2022-01-28 | |||
| CN114400939A | 2022-04-26 | |||
| JP2012186911A | 2012-09-27 |
Other References:
KUN HU, HUANG HAO; ZHANG YANG: "Robust Current Predictive Control of PM Synchronous Motor Based on Disturbance Observer", ELECTRICAL MACHINERY TECHNOLOGY, vol. 4, no. 4, 25 August 2022 (2022-08-25), pages 10 - 17, XP093151598, ISSN: 1006-2807, DOI: 10.3969/j.issn.1006-2807.2022.04.003
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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