Abstract

Torque ripple is one of the major disadvantages of Switched Reluctance Motor (SRM) drives due to its double salient geometry and it is a serious drawback in applications that require smooth torque and high dynamic performances. This paper presents the minimization of torque ripple in SRM using an enhanced direct instantaneous torque control. Linear and non linear modelling is done in SIMULINK. SRM is modelled in ANSYS MAXWELL (FEA method) and the inductance and torque values are obtained. These values have been provided as look up table in MATLAB for obtaining the non linear characteristics of SRM. The switching control rules in each inductance region are then described according to the characteristics of asymmetric power converter. In order to test the method, a SRM drive system is simulated in MATLAB SIMULINK after detailed analysis of linear and non linear models.