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- Title
Generalized predictive speed control based on equivalent-input-disturbance for PMSM drive system.
- Authors
Huang, Gang; Li, Jiajun; Yu, Huijun; Huang, Wei; Zhao, Kaihui
- Abstract
The speed control performance of permanent magnet synchronous motor (PMSM) drive system is degraded due to non-matching disturbances such as parameter perturbation and load torque mutation. This paper presents a nonlinear generalized predictive control method based on equivalent-input-disturbance (GPC-based-EID) to realize the fast response and strong robustness of the speed controller of the PMSM drive system. Firstly, the continuous time nonlinear system of a motor mechanical equation is established. A speed controller based on the generalized predictive theory rather than the PI controller of a traditional vector control is designed. Then, the drive system with disturbance is transformed into an EID system. An improved nonsingular fast terminal sliding-mode observer (NFTSMO) is introduced to accurately estimate the EID of total system non-matching disturbances. And the active compensation of non-matching disturbances is realized through feedforward method. This greatly enhances the robustness and the speed tracking performance of the drive system. Comparisons with PI control, traditional GPC and GPC-based-ESO methods show the effectiveness of the method.
- Subjects
PERMANENT magnets; SYNCHRONOUS electric motors; PREDICTIVE control systems; ROBUST control; VECTOR control
- Publication
Advances in Mechanical Engineering (Sage Publications Inc.), 2022, Vol 14, Issue 10, p1
- ISSN
1687-8132
- Publication type
Article
- DOI
10.1177/16878132221132154