U-model-based two-degree-of-freedom internal model control of nonlinear dynamic systems

Li, Ruobing; Zhu, Quanmin; Narayan, Pritesh; Yue, Alex; Yao, Yufeng; Deng, Mingcong

Abstract

This paper proposes a U-Model-Based Two-Degree-of-Freedom Internal Model Control (UTDF-IMC) structure with strength in nonlinear dynamic inversion, and separation of tracking design and robustness design. This approach can effectively accommodate modeling error and disturbance while removing those widely used linearization techniques for nonlinear plants/processes. To assure the expansion and applications, it analyses the key properties associated with the UTDF-IMC. For initial benchmark testing, computational experiments are conducted using MATLAB/Simulink for two mismatched linear and nonlinear plants. Further tests consider an industrial system, in which the IMC of a Permanent Magnet Synchronous Motor (PMSM) is simulated to demonstrate the effectiveness of the design procedure for potential industrial applications.

• Journal Article Type: Article
• Acceptance Date: Jan 29, 2021
• Online Publication Date: Jan 29, 2021
• Publication Date: Jan 29, 2021
• Deposit Date: Feb 20, 2021
• Publicly Available Date: Feb 24, 2021
• Journal: Entropy
• Electronic ISSN: 1099-4300
• Publisher: MDPI
• Peer Reviewed: Peer Reviewed
• Volume: 23
• Issue: 2
• Article Number: 169
• DOI: https://doi.org/10.3390/e23020169
• Keywords: General Physics and Astronomy
• Public URL: https://uwe-repository.worktribe.com/output/7106995