| Abstract |
This paper proposes a torque ripple reduction method for Switched Reluctance Motor (SRM). Large torque ripple occurs in SRM during switching phase interval. In order to reduce the torque ripple, the ideal current waveform, which reduces completely the torque ripple, is applied as a command value controlling the instantaneous torque. In the proposed method, the ideal current waveform is derived by considering voltage limitation based on mathematical model. The algorithm for determining the torque command is introduced to derive current command which is possible to generate by the power supply. In addition, the maximum torque which is possible to output under condition of the zero torque ripple is clarified. A three-phase 18S/12P type SRM is used in simulation and experiment in order to validate the proposed method. As a result, the torque with no torque ripple is achieved by employing the proposed algorithm in the simulation. Furthermore, the fundamental components of the torque ripple is reduced by 91.5\% on average by applying the proposed method in the experiment. |
