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- aggregation classification "A1".
- aggregation creator person.
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- aggregation date "2006".
- aggregation format "application/pdf".
- aggregation hasFormat 353059.bibtex.
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- aggregation isPartOf urn:issn:0332-1649.
- aggregation language "eng".
- aggregation publisher "EMERALD GROUP PUBLISHING LIMITED".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Technology and Engineering".
- aggregation title "A discrete-time model including cross-saturation for surface permanent-magnet synchronous machines".
- aggregation abstract "Purpose - To provide a discrete-time nonlinear model for surface permanent-magnet synchronous machines (SPMSMs) in order to discuss the stability of such machines. Design/methodology/approach - Through differencing the co-energy, obtained from a finite element method, the main flux path can be described by a complex reluctance. Furthermore, for a SPMSM, an equivalent circuit is presented that includes the eddy-current losses and the voltage drops across stator resistance and leakage inductance. The model is transformed to a discrete-time state-space model by using a forward rectangular rule. By using a root locus technique, the stability of the new model is discussed. Findings - From the calculated root locus it is concluded that the stability of a SPMSM is only guaranteed for certain values of the open loop gain. Moreover, by using the forward rectangular rule, it is concluded that a well-considered time step has to be chosen. Research limitations/implications - The model considers the fundamental space harmonic components only. Moreover, the saturation of the leakage flux path is neglected. Practical implications - As the model is formulated in discrete time, it can be used in modem drives where a digital controller is used. Originality/value - This paper presents an equivalent electrical circuit for SPMSMs that takes into account the saturation of the magnetizing flux paths as well as the magnetic interaction between the two orthogonal magnetic axes.".
- aggregation authorList BK381515.
- aggregation endPage "778".
- aggregation issue "4".
- aggregation startPage "766".
- aggregation volume "25".
- aggregation aggregates 457137.
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- aggregation similarTo 03321640610683980.
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