Sensorless Control of Switched Reluctance Motor Based on the Flux-Linkage Characteristics from Finite Element Method

To upgrade the application of switched reluctance motors (SRMs) for more electric aircraft (MEA), this paper presents a method which uses sensorless control based on the flux-linkage data from the finite element method. First, a calibration strategy based on the finite-element method (FEM) is employed to obtain the flux-linkage characteristics. Then, this paper uses sliding-mode observer (SMO) to realize the sensorless control of the SRM. Based on the flux-linkage characteristics and the SMO, a sensorless control technique for SRM in dynamic modes for high speed is implemented to minimize the bulk and cost. Experimental results verify the accuracy and effectiveness of the calibration and SMO strategy.