DocumentCode :
2967454
Title :
Optimal torque control of interior permanent magnet synchronous machines in the full speed range
Author :
de Kock, H.W. ; Rix, A.J. ; Kamper, M.J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Stellenbosch, Stellenbosch
fYear :
2008
fDate :
6-9 Sept. 2008
Firstpage :
1
Lastpage :
6
Abstract :
Optimally designed interior permanent magnet synchronous machines using finite element software, and control of such machines using powerful digital signal processing controllers, is common-place today. With field orientated control, the maximum torque per ampere control strategy for unsaturated voltage conditions (below base speed) is well known; the field weakening strategy however, can be rather daunting. In this paper a straightforward torque control strategy for the entire speed range is demonstrated. Practical implementation is very simple, since the calculations are removed from the load of the digital signal processor and are done off-line in an automated process. The process relies on machine specific data from finite element analysis and therefore includes non-linear effects such as saturation and cross-coupling. Simulated and practical results for the steady state show that the torque is controlled effectively in the entire speed range.
Keywords :
finite element analysis; machine vector control; optimal control; permanent magnet machines; synchronous machines; torque control; velocity control; digital signal processing controllers; field orientated control; field weakening strategy; finite element analysis; finite element software; interior permanent magnet synchronous machines; machines control; optimal torque control; unsaturated voltage conditions; Digital control; Digital signal processing; Digital signal processors; Finite element methods; Optimal control; Permanent magnet machines; Process control; Signal design; Torque control; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
Type :
conf
DOI :
10.1109/ICELMACH.2008.4799938
Filename :
4799938
Link To Document :
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