State Space-Vector Model of Linear Induction Motors Including Iron Losses Part I: Theoretical Analysis

This is the first part of a paper, divided into two parts, dealing with the definition of a space-vector dynamic model of the linear Induction motor (LIM) taking into consideration both the dynamic end-effects and the iron losses and its off-line identification. This first part specifically treats the theoretical formulation of this model, which has been expressed in a state form, so to be, in perspective, suitably adopted for developing novel non-linear control techniques, non-linear observers as well as electrical losses minimization techniques (ELMTs). Besides the formulation of the dynamic model in space-vector state form, a steady-state analysis is proposed, highlighting the combined effects of the dynamic end-effects and the iron losses on the main electrical quantities of the LIM.

[1]  I. Takahashi,et al.  Decoupling control of thrust and attractive force a LIM using a space vector control inverter , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[2]  E.B. dos Santos,et al.  Dynamic model for linear induction motors , 2003, IEEE International Conference on Industrial Technology, 2003.

[3]  J. Duncan,et al.  Linear induction motor-equivalent-circuit model , 1983 .

[4]  S. Nasar,et al.  A complete equivalent circuit of a linear induction motor with sheet secondary , 1988 .

[5]  M. Cirrincione,et al.  MRAS Speed Observer for High-Performance Linear Induction Motor Drives Based on Linear Neural Networks , 2013, IEEE Transactions on Power Electronics.

[6]  Marcello Pucci Direct field oriented control of linear induction motors , 2012 .

[7]  H. Kubota,et al.  DSP-based speed adaptive flux observer of induction motor , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[8]  K. Nam,et al.  Field-oriented control scheme for linear induction motor with the end effect , 2005 .

[9]  I. Boldea,et al.  Linear Electric Actuators and Generators: Linear Electric Actuators and Generators , 1997 .

[10]  M. Pucci,et al.  An adaptive speed observer based on a new total least-squares neuron for induction machine drives , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[11]  Kwanghee Nam,et al.  A new approach to vector control for a linear induction motor considering end effects , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[12]  N. Rotondale,et al.  A voltage feeding algorithm for vectorial control of linear asynchronous machines taking into account end effect , 1998, 1998 International Conference on Power Electronic Drives and Energy Systems for Industrial Growth, 1998. Proceedings..

[13]  E.R. Laithwaite,et al.  Linear electric machines—A personal view , 1975, Proceedings of the IEEE.