International OPEN ACCESS Journal Of Modern Engineering Research (IJMER) | IJMER | ISSN: 2249–6645 | www.ijmer.com | Vol. 4 | Iss.7| July. 2014 | 21| A Novel High Performance H-Bridge Converter Topology for 8/6 pole SRM Drive V. V. N. Murthy 1 , S. S. Tulasi Ram 2 , J. Amarnath 3 1, (Department of Electrical and Electronics Engineering, University College of Engineering, JNTU Kakinada, Andhra Pradesh, India) 2, 3 (Department of Electrical and Electronics Engineering, University College of Engineering, JNTU Hyderabad, Andhra Pradesh, India) I. INTRODUCTION Switched Reluctance Drives have been in the center of research exertion for more than two decades [1]-[3]. These principally vary as for the amount of phases utilized, stator/rotor poles number set-up’s, and the concept of torque creation. In spite of the fact that the torque is constantly produced by the doubly-salient structure of the machine, its inception may be two-fold. Torque may be created entirely because of the variation of the winding self-inductance with rotor position (nothing but short pitched SRM’s). On the other hand, mutual coupling between phases (i.e. position-dependence on variety of mutual inductances) could be utilized to enhance the torque density. Contingent upon the winding distribution, two types of SRM’s may come about, fully pitched and partially pitched SRM’s. In fully pitched SRM’s there is an unimportant variety i n phase self inductance toward oneself with rotor position and torque production comes about because of variety of the mutual inductance in between neighbouring phases. As far as this subdivision, this paper focuses on the short pitched SRM’s. Various power semiconductor topologies have been created throughout the years exclusively for utilization of conjunction with SRM Drives. On a basic level, the quest has been dependably for a converter with a minimized number of switches [4]. An excellent review of various power electronic converter designs for SRM drives is accessible in [5], while some exceptionally insightful comparisons of different commonly utilized topologies might be found in [6]-[8]. Be that as it may, regardless to all the advancements in the SRM drives area, switched reluctance machine have not yet found expansive acceptance. The low cost feasible design of switched reluctance motor, with its features of fault tolerance and capability to withstand high temperatures makes its very imperative for the automotive application. One of the principle aspects of the research in switched reluctance motor drives has been the converter design [9]-[12]. The execution and the expense of the drive are exceedingly influenced by performance of the converters. The phase independence and unipolar current necessity have produced a wide variety of converter topologies for SRM drives. Numerous diverse topologies have risen with minimized number of active switched and faster commutation time through proceeded research. There has been dependably a trade-off between gaining some of the advantages and losing some with every new topology. The decision of converter for a certain application is an essential issue [13]. Abstract: Despite of the fact that obviously less complex, the SRM drives are these days more expensive than their formal AC drive systems. This is, all things considered brought about by the absence of an optimal power electronic converter for SRM drives, which would be accessible as a single module. Various endeavors were hence made lately to create novel power electronic converter structures for SRM drives, in light of the usage of a Four-phased voltage source inverter (VSI), it is promptly accessible as a single module. This paper takes after this line of thought and presents a novel power switching device for SRM drive, which is totally focused around the use of standard inverter legs, have their own particular favorable circumstances and weakness. The determination of a converter, in the majority of the cases, relies on the application & consistency. To encourage the choice a relative comparative analysis is intended in this paper. An arrangement of SRM formal converter topologies with a definite evaluation of proposed topology fed four phased 8/6 SRM drive worked as open circuit & closed circuit controlling scheme is executed in Matlab/Simulink software package and the relating results are introduced. Keywords: Switched Reluctance Motor Drives, Asymmetric Converter topology, Proposed H-Bridge Converter Topology.