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Energies 2018, 11(8), 2027; https://doi.org/10.3390/en11082027

Stability Analysis of Deadbeat-Direct Torque and Flux Control for Permanent Magnet Synchronous Motor Drives with Respect to Parameter Variations

Department of electrical engineering, Chonbuk National University, Jeollabuk-do 54896, Korea
2013 15th European Conference on Power Electronics and Applications (EPE), Lille, France, 2–6 September 2013.
Received: 11 July 2018 / Revised: 30 July 2018 / Accepted: 30 July 2018 / Published: 4 August 2018
(This article belongs to the Special Issue Permanent Magnet Synchronous Machines)
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Abstract

This paper presents a stability analysis and dynamic characteristics investigation of deadbeat-direct torque and flux control (DB-DTFC) of interior permanent magnet synchronous motor (IPMSM) drives with respect to machine parameter variations. Since a DB-DTFC algorithm is developed based on a machine model and parameters, stability with respect to machine parameter variations should be evaluated. Among stability evaluation methods, an eigenvalue (EV) migration is used in this paper because both the stability and dynamic characteristics of a system can be investigated through EV migration. Since an IPMSM drive system is nonlinear, EV migration cannot be directly applied. Therefore, operating point models of DB-DTFC and CVC (current vector control) IPMSM drives are derived to obtain linearized models and to implement EV migration in this paper. Along with DB-DTFC, current vector control (CVC), one of the widely used control algorithms for motor drives, is applied and evaluated at the same operating conditions for performance comparison. For practical analysis, the US06 supplemental federal test procedure (SFTP), one of the dynamic automotive driving cycles, is transformed into torque and speed trajectories and the trajectories are used to investigate the EV migration of DB-DTFC and CVC IPMSM drives. In this paper, the stability and dynamic characteristics of DB-DTFC and CVC IPMSM drives are compared and evaluated through EV migrations with respect to machine parameter variations in simulation and experiment. View Full-Text
Keywords: PMSM (permanent magnet synchronous motor); DB-DTFC (deadbeat-direct torque and flux control); torque control; stability PMSM (permanent magnet synchronous motor); DB-DTFC (deadbeat-direct torque and flux control); torque control; stability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Lee, J.S. Stability Analysis of Deadbeat-Direct Torque and Flux Control for Permanent Magnet Synchronous Motor Drives with Respect to Parameter Variations . Energies 2018, 11, 2027.

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