NDLI: Multivariable generalised predictive control with measurement noise rejection and speed ripple mitigation for PMSM drives

Content Provider	IET Digital Library
Author	Wang, Tao Zhu, Zi Qiang Freire, Nuno Miguel Amaral Wu, Zhanyuan Odavic, Milijana Foster, Martin P. Stone, David A.
Abstract	Generalised predictive control (GPC) is known for its good dynamic performance and long prediction horizon, but the performance can be severely deteriorated when measurement noises exist due to the wide control bandwidth of GPC. Meanwhile, the unmodelled periodic disturbances can cause ripples to the output variables. In this study, a practical permanent magnet synchronous motor (PMSM) drive system with speed measurement noise and periodic disturbances is considered, for which a novel multivariable GPC method is proposed to achieve both good dynamic performance and speed ripple mitigation. The proposed method has a simple structure, since the traditional cascaded speed and current control loops are replaced by a non-cascaded one. To reject the measurement noise without jeopardising the system stability, an internal low-pass filter is embedded in the GPC. Meanwhile, external resonant loops are added to the GPC to mitigate the low-order speed ripples caused by the periodic disturbances. Furthermore, a deadbeat-based current constraint method is proposed to avoid overcurrent during transient processes. Theoretical stability analysis of the proposed method is presented. Experimental results show that the proposed method has good steady-state and dynamic performances, including measurement noise rejection and speed ripple mitigation.
Starting Page	2607
Ending Page	2617
Page Count	11
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 12, Sep (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0246
Journal	IET Power Electronics
Publisher Date	2020-06-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Current Control Current Control Loops Drive Dynamic Performances Electric Current Control Good Steady-state Long Prediction Horizon Low-order Speed Ripples Low-pass Filter Machine Control Measurement Noise Rejection Multivariable Control System Multivariable Generalised Predictive Control Novel Multivariable GPC Method Optimal Control Permanent Magnet Motors PMSM Drive Practical Permanent Magnet Synchronous Motor Drive System Predictive Control Speed Measurement Noise Speed Ripple Mitigation Stability Synchronous Machine Synchronous Motor Drive Synchronous Motors Traditional Cascaded Speed Unmodelled Periodic Disturbances Wide Control Bandwidth
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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