一种基于电压矢量投影的双三相永磁电机预测电流控制方法
By optimizing the control set of a dual three-phase permanent magnet motor based on voltage vector projection, a smooth switching between zero vector, virtual vector, and large vector is achieved, solving the control degree of freedom and steady-state performance problems of the dual three-phase permanent magnet motor drive system and improving voltage utilization and steady-state operation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANJIN POLYTECHNIC UNIV
- Filing Date
- 2024-01-08
- Publication Date
- 2026-07-17
AI Technical Summary
Dual three-phase permanent magnet motor drive systems face challenges such as limited control degrees of freedom, high parameter sensitivity, numerous alternative voltage vectors, and difficulty in evaluating control performance. Existing predictive control algorithms have room for improvement in steady-state performance.
A predictive current control method for dual three-phase permanent magnet motors based on voltage vector projection is adopted. By expanding the large vector to the control set, the switching synthesis principle of the six-phase inverter is sorted out, and smooth switching between zero vector, virtual vector and large vector is achieved. Furthermore, the direct correspondence between the reference quantity and the candidate vector in the projection space is found through voltage vector projection, thereby optimizing the current control.
With only 4 enumerations required, current ripple is reduced, voltage utilization is improved, and better steady-state operation performance and continuous voltage output capability are achieved.
Smart Images
Figure CN117811444B_ABST