Abstract
Electro-mechanical actuators with redundancy design use a cross-coupling control strategy to enhance the coordinated control capability of the aviation motors. Due to its linear control characteristic, traditional cross-coupling control reveals moderate dynamic response performance and synchronisation control accuracy. To further reduce the susceptibility to load torque and parameter perturbations in the application of a dual permanent magnet synchronous motor system, this paper proposes a non-linear active disturbance rejection control (ADRC)-based synchronisation control strategy. Considering the low gain problem of traditional ADRC when the speed tracking error is large, a non-linear ADRC speed controller with an efal function is designed. Meanwhile, a Levant differentiator is proposed to improve the speed tracking performance during dynamic processes. Moreover, a non-linear synchronous controller with current constraints is applied to the cross-coupling control to enhance the synchronisation convergence performance of the dual-PMSM system. Finally, simulation and experimental results demonstrate the effectiveness of the proposed non-linear ADRC speed synchronisation control.
Original language | English |
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Pages (from-to) | 1796-1806 |
Number of pages | 11 |
Journal | IET Electric Power Applications |
Volume | 18 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2024 |
Keywords
- AC motor drives
- active disturbance rejection control
- permanent magnet motors