Abstract:

Now a days switched reluctance motor (SRM) becomes more popular among the various electric drives available in the domestic and industrial application due to its simple and robust construction. The application of the machine, the operation of the switched reluctance motor can be categorized into the low and medium speed operation and high speed operation. The operation of the machine at high speed can exceed the speed of 20,000 rpm for the aerospace applications, which is beyond the speed encountered in wind energy system, which could be as low as 200 rpm. The potential of SRM is one of the prospects for variable speed applications. However, the available research generating operation mainly covers the high speed application.  The SRM is one of the machine which can operates even under the faulty conditions with reduces the performance the reason behind this is that the rotor doesn’t have any excitation source even doesn’t generate power into the faulted phase. The control of SRM drive is developed by the converter circuit which controls excitation of the phase by SCS (switching converter switches). Thus the developed SRM circuit suffers from low power factor and high harmonic capacity which affects the performance of the SRM drive. In this present work is to design and develop a circuit which gives improved power factor and low torque ripples. From the various converter topologies, asymmetric bridge converter is used to analysis the performance of SRM and simulations as result carried out in MATLAB. Three phase asymmetrical power converter using the insulated-gate bipolar transistor (IGBT) which is a three-terminal power semiconductor device primarily used as an electronic switch which is developed to combine the high efficiency and fast switching and it used in the feedback of motor to control the power factor of motor. After simulating the model for much iteration and in each iteration new position of stator and rotor is assigned, an optimum position is reached where ripples are very less and depicts the reduction in torque ripples as result obtained

Keywords: Switched Reluctance Motor (SRM), 3-Phase Power Converter, IGBT, Parameter Analysis of SRM.