基于无模型有限时间终端滑模扰动观测器的改进型滑模控制，用于 IPMSM 速度纹波最小化

IF 5.4 2区计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS

Control Engineering Practice Pub Date : 2024-11-22 DOI:10.1016/j.conengprac.2024.106178

Lin Liu , Heng Dong , Xiaobing Xu , Zanxian Tan , Jiayuan Geng , Baiyang Liu

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引用次数: 0

摘要

带滑动模态扰动观测器（SMDO）的室内永磁同步电机（IPMSM）无模型滑动模态控制会受到电机参数不匹配造成的反馈延迟的影响。观察器滞后于外部干扰的变化，从而降低了 IPMSM 驱动器的速度跟踪精度和瞬态控制性能。为了解决这些问题，本文提出了一种改进的基于高阶滑模扰动观测器的无模型有限时间终端滑模控制（HOSMDO-MFFTTSMC）策略。首先，设计了有限时间终端滑模曲面（FTTSMS），并结合超局部模型设计了基于转速环的 MFFTTSMC 策略。系统控制状态在有限时间内收敛，并实现了对观测误差的精确跟踪。此外，在观测器中引入了非矢量快速终端滑动模式，设计了高阶 SMDO。对干扰的未知部分进行实时观测和补偿，提高了 IPMSM 的快速跟踪响应能力和抗干扰能力，并有效抑制了定子电流谐波。最后，用一台 6.6 千瓦的电机对所提出的 HOSMDO-MFFTTSMC 策略进行了实验验证。仿真和实验结果验证了 HOSMDO-MFFTTSMC 策略的正确性和有效性。

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Improved sliding mode disturbance observer-based model-free finite-time terminal sliding mode control for IPMSM speed ripple minimization

The model-free sliding mode control with sliding mode disturbance observer (SMDO) for interior permanent magnet synchronous motor (IPMSM) is affected by feedback delays caused by mismatch of motor parameters. The observer is lagged behind the change of external disturbances, the speed tracking accuracy and transient control performance for IPMSM drives are reduced. In order to solve the issues, an improved higher-order sliding mode disturbance observer-based model-free finite-time terminal sliding mode control (HOSMDO-MFFTTSMC) strategy is proposed in this paper. First, a finite-time terminal sliding mode surface (FTTSMS) is designed, and a rotation speed-loop-based MFFTTSMC strategy is designed by combining the ultra-local model. The system control state is converged in finite time and the accurate tracking of observation error is realized. In addition, the non-singular fast terminal sliding mode is introduced into the observer, the higher-order SMDO is designed. The unknown part of disturbances is observed and compensated in real time, the fast-tracking response capability and anti-disturbance capability for IPMSM are improved, and the stator current harmonics are effectively suppressed. Finally, the proposed HOSMDO-MFFTTSMC strategy is experimentally demonstrated with a 6.6kW motor. The correctness and effectiveness of the HOSMDO-MFFTTSMC strategy are verified by simulation and experimental results.

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来源期刊

Control Engineering Practice 工程技术-工程：电子与电气

CiteScore

9.20

自引率

12.20%

发文量

183

审稿时长

44 days

期刊介绍： Control Engineering Practice strives to meet the needs of industrial practitioners and industrially related academics and researchers. It publishes papers which illustrate the direct application of control theory and its supporting tools in all possible areas of automation. As a result, the journal only contains papers which can be considered to have made significant contributions to the application of advanced control techniques. It is normally expected that practical results should be included, but where simulation only studies are available, it is necessary to demonstrate that the simulation model is representative of a genuine application. Strictly theoretical papers will find a more appropriate home in Control Engineering Practice''s sister publication, Automatica. It is also expected that papers are innovative with respect to the state of the art and are sufficiently detailed for a reader to be able to duplicate the main results of the paper (supplementary material, including datasets, tables, code and any relevant interactive material can be made available and downloaded from the website). The benefits of the presented methods must be made very clear and the new techniques must be compared and contrasted with results obtained using existing methods. Moreover, a thorough analysis of failures that may happen in the design process and implementation can also be part of the paper. The scope of Control Engineering Practice matches the activities of IFAC. Papers demonstrating the contribution of automation and control in improving the performance, quality, productivity, sustainability, resource and energy efficiency, and the manageability of systems and processes for the benefit of mankind and are relevant to industrial practitioners are most welcome.