FLUXWEAKENING CONTROL OF PERMANENT （FLUXWEAKENING永久的控制）.pdfVIP

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FLUXWEAKENING CONTROL OF PERMANENT （FLUXWEAKENING永久的控制）.pdf

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FLUXWEAKENING CONTROL OF PERMANENT （FLUXWEAKENING永久的控制）

Journal of Theoretical and Applied Information Technology st 31 December 2011. Vol. 34 No.2 © 2005 - 2011 JATIT LLS. All rights reserved. ISSN: 1992-8645 E-ISSN: 1817-3195 FLUX-WEAKENING CONTROL OF PERMANENT MAGNET SYNCHRONOUS MACHINES 1 2 H. MAHMOUDI , A. LAGRIOUI 1,2Department of Electrical Engineering, xxx, YYY Department of Electrical Engineering, Powers Electronics Laboratory Mohammadia School of Engineering- BP 767 Agdal- Rabat -Morocco E-mail: 1 mahmoudi.hassane@, 2 lagrioui71@ ABSTRACT In this paper, a robust flux-weakening control scheme of PM synchronous machines is studied. Based on a novel current control concept, a speed/flux-weakening controller (SFWC) is proposed for the flux- weakening control of PMSM. Comprehensive analysis is conducted on the operations of PMSM controlled by SFWC in the flux-weakening region. Small-signal method is used to investigate the flux and torque controllability of SFWC. The current vector trajectories are modeled and illustrated in the rotor reference frame, with special attention to SPM motors. Efficiency-optimized design is performed on the selection of a newly introduced voltage constant. The Simulation results are provided to demonstrate the feasibility of the proposed control concept. Keywords: Speed/Flux-Weakening Controller (SFWC), permanent magnet synchronous machine (PMSM) Matlab/Simulink.