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Zirui Liu

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Journal article
Published: 28 March 2018 in Energies
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In this paper, an on-line parameter identification algorithm to iteratively compute the numerical values of inertia and load torque is proposed. Since inertia and load torque are strongly coupled variables due to the degenerate-rank problem, it is hard to estimate relatively accurate values for them in the cases such as when load torque variation presents or one cannot obtain a relatively accurate priori knowledge of inertia. This paper eliminates this problem and realizes ideal online inertia identification regardless of load condition and initial error. The algorithm in this paper integrates a full-order Kalman Observer and Recursive Least Squares, and introduces adaptive controllers to enhance the robustness. It has a better performance when iteratively computing load torque and moment of inertia. Theoretical sensitivity analysis of the proposed algorithm is conducted. Compared to traditional methods, the validity of the proposed algorithm is proved by simulation and experiment results.

ACS Style

Ming Yang; Zirui Liu; Jiang Long; Wanying Qu; Dianguo Xu. An Algorithm for Online Inertia Identification and Load Torque Observation via Adaptive Kalman Observer-Recursive Least Squares. Energies 2018, 11, 778 .

AMA Style

Ming Yang, Zirui Liu, Jiang Long, Wanying Qu, Dianguo Xu. An Algorithm for Online Inertia Identification and Load Torque Observation via Adaptive Kalman Observer-Recursive Least Squares. Energies. 2018; 11 (4):778.

Chicago/Turabian Style

Ming Yang; Zirui Liu; Jiang Long; Wanying Qu; Dianguo Xu. 2018. "An Algorithm for Online Inertia Identification and Load Torque Observation via Adaptive Kalman Observer-Recursive Least Squares." Energies 11, no. 4: 778.