Hybrid Topologies of Non-Permanent Magnet-Excited Switched-Reluctance Motors With High Torque Capability For Electric Vehicle Applications

Switched reluctance motors (SRMs), which operate at high speeds, have optimal control and may enhance electrically driven performance with many overlapping phases, are becoming increasingly common in electric traction motors. This may be attributable to high power density and reliable torque per ampere. As an alternative to direct current (DC) series and permanent magnet-based (PM) motors, the design and development of specialized electrical machines, like SRMs, have become more prevalent in recent years. In this study, a hybrid excited non-permanent magnet-assisted different topologies of switched reluctance motors for electric vehicle (EV) applications are designed, and their performance is evaluated. Due to its high torque performance, hybrid excitation of switched reluctance motors (HESRM) is in great demand in the EV industry. To improve the performance of SRMs, this technique is being used with PM-assisted excitation. This new hybrid excitation method improves torque performance without using rare-earth elements. This can be achieved by sending (DC) through the chosen auxiliary poles. The innovative machine's simulated static and dynamic properties differ from conventional SRM drives with the same rating. As a result, two motor prototypes have been modified, and experimental analysis is used to confirm the concept's validity. The new topologies significantly outperform the existing ones regarding electromagnetic torque throughout all speed ranges with the help of adding poles in the main windings. This machine is ideally suited for EV applications because of its fault tolerance, which allows for different control topologies and redundancy.