Analytical Modelling Segmented Switched Reluctance Linear Synchronous Motor (SSRLSM) Using Permeance Analysis Model (PAM)

Abstract

This paper discusses the analytical modelling of a segmented switched reluctance linear synchronous motor (SSRLSM) using a magnetic equivalent circuit (MEC) based on the permeance analysis method (PAM). The PAM is applied to obtain the MEC of the SSRLSM, considering the flux path pattern in the air gap region between the stator and mover. The PAM is used to create the air gap permeance model. The developed permeance model was transformed into a MEC. The MEC corresponds to an electrical circuit based on the geometry of the machine and the estimated magnetic flux path to solve the SSRLSM thrust performance analysis. The equation is derived from the MEC of the SSRLSM and used to analyse the characteristics of the thrust performance of the SSRLSM. The effect of mover position and phase current on the thrust is investigated and analysed. To validate the model of the SSRLSM, the thrust characteristics were compared with FEM and measurement results. The comparison shows good agreement.

Keywords

• analytical modelling
• linear switched reluctance motor
• magnetic equivalent circuit
• permeance model