Gabbi Thieli S, de Araujo Marcelo B, Rocha Lucas R, Scalcon Filipe P, Gründling Hilton A, Vieira Rodrigo P
Federal University of Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil.
Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil.
ISA Trans. 2022 Sep;128(Pt A):581-592. doi: 10.1016/j.isatra.2021.10.032. Epub 2021 Nov 15.
A robust current control approach with disturbance cross-coupling compensation for permanent magnet synchronous motor drives (PMSM) is proposed in this paper. The proposed approach can enhance the reference tracking and provides a robust option for current control of PMSM drives. A discrete-time sliding mode current controller is proposed. The PMSM model includes the digital implementation delay, present due to the discrete-time algorithm execution. A discrete-time backstepping disturbance observer is developed, being combined to the sliding mode controller as a means to improve the robustness and tracking capability. The effects of coupling, parametric uncertainties and load disturbances are compensated by the backstepping disturbance observer. The stability analysis of the combined system is presented and the limits for overall system stability are discussed. Simulations and experimental results validate the combined scheme and demonstrate the good performance of the proposal.
本文提出了一种用于永磁同步电机驱动（PMSM）的具有扰动交叉耦合补偿的鲁棒电流控制方法。该方法可以增强参考跟踪能力，并为PMSM驱动的电流控制提供一种鲁棒的选择。提出了一种离散时间滑模电流控制器。PMSM模型包括由于离散时间算法执行而产生的数字实现延迟。开发了一种离散时间反步扰动观测器，并将其与滑模控制器相结合，以提高鲁棒性和跟踪能力。反步扰动观测器对耦合、参数不确定性和负载扰动的影响进行补偿。给出了组合系统的稳定性分析，并讨论了整个系统稳定性的限制。仿真和实验结果验证了该组合方案，并证明了该方案的良好性能。
