Modelling of static thrust characteristics of cylindrical linear switched reluctance actuator

A review on linear switched reluctance motor

“…When the stator houses the winding, it forms the primary and the configuration so obtained is referred to as active stator configuration (primary). This configuration has been adopted in developing actuators, drives for doors, industrial rails ( [11], [53], [57], [12], [18], [41], [32], [2], [17], [9], [43]). Similarly, when the translator houses the windings, the configuration is called an active translator or primary mover.…”

“…However, finite element analysis still remains the most accurate method to obtain performance characteristics of the machine. Estimating reluctance from flux tube method ( [12], [32], [17], [9], [6]) is popularly used to calculate reluctance or permeance deterministically, as a function of displacement of mover, to track changes of inductance with position [10]. Chen et al [9] has estimated the distribution of magnetic flux linkage in the air gap for six special mover positions.…”

“…Lee at al. [12] uses a bisection method to narrow down the variables by iterating for the mmf supplied to the system. Fonseca et al [22] adopts the Runga Kutta method to calculate the distribution of flux linkages while Lee B S. [31] evaluates magnetic flux linkage by applying conservation of magneto-motive force in the system.…”

“…Finite Element Analysis/Method (FEA or FEM) is the most proficient alternative in analysing the flux linkage characteristics. Researchers ( [34], [35], [29], [12], [2], [17], [43], [21], [20], [33], [47], [28], [13], [60], [16]) have adopted 2D finite element analysis to calculate thrust and levitation forces in LSRM. Barhoumi et al [6] has compared the proposed efficient reluctance network with FEM results which delivers considerable accuracy.…”

“…Development of control algorithms obtained a smoother operation by reducing cogging or ripple force, often experienced in a variable reluctance machine. This accelerated their application in several fields ranging from elevator drives [34], [35], generators [57], transportation rails ( [37], [5], [29]) ocean wave energy harnesser [56], actuators [12], driver for automatic door [18], medical applications [41] only to name a few. The present work discusses the various flexibility in configuration, algorithms of design, tools of analysis and adopted control methodologies of LSRM, in brief.…”