Application of Multilayer Observer for a Drive System with Flexibility

Karol Wróbel, Kacper Śleszycki, Krzysztof Szabat and Seiichiro Katsura
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Karol Wróbel: Department of Electrical Drives and Measurements, Wrocław University of Science and Technology, PL50370 Wrocław, Poland
Kacper Śleszycki: Department of Electrical Drives and Measurements, Wrocław University of Science and Technology, PL50370 Wrocław, Poland
Krzysztof Szabat: Department of Electrical Drives and Measurements, Wrocław University of Science and Technology, PL50370 Wrocław, Poland
Seiichiro Katsura: Department of System Design Engineering, Keio University, Yokohama 223-8522, Japan

Energies, 2021, vol. 14, issue 24, 1-19

Abstract: This paper proposes a new estimation algorithm based on the Luenberger observer methodology and multilayer concept. The proposed multi-layer Luenberger observer (MLO) is implemented in the control structure designated for a two-mass system. Two types of aggregation mechanism are evaluated in the paper. The MLO ensures better estimation quality of the mechanical state variables: motor speed, shaft torque, load speed and load torque, as compared to the classical single observer. The more accurate estimated states, the more precise closed-loop control is guaranteed. MLO is designated for the system where initial conditions of the plant are not known or the state variables can change rapidly (load torque in the considered case). The estimation algorithm and control strategy is evaluated through simulation and experimental tests. The obtained results confirm efficiency of the proposed MLO.

Keywords: torsional vibration; state estimation; multi-layer observer; servo system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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