Akademik Veri Yönetim Sistemi
23 12th International Conference on Renewable Energy Research and Applications (ICRERA), Oshawa, Kanada, 29 Ağustos - 01 Eylül 2023, ss.1-6
To improve the tracking performance and reduce the convergence time of speed controllers for permanent magnet synchronous motors (PMSM) under different disturbances, including variations in internal parameters and changes in external loads, several control enhancements can be implemented. These improvements aim to optimize the motor control system for better overall performance. In this paper, sliding mode control based on fixed-time disturbance observer for PMSM speed regulation is proposed. Firstly, a reaching law based on a piecewise function with a super twisting algorithm is given to deal with the drawbacks of chattering in frequently employed sliding mode control. A faster convergence speed is promised, in addition to less chattering. Secondly, to decrease the sliding mode gain and improve the PMSM's anti-disturbance capabilities, a fixed-time disturbance observer is constructed to analyze disturbances in the PMSM. The Lyapunov function is used to assess the stability of the suggested approach. The simulation results demonstrate that the novel control approach exhibits superior performance compared to other existing methods, faster convergence speed, minimal chattering, and enhanced resistance to disturbances.