A new algorithm for estimation of vibrations in a switched reluctance motor using magnetic circuits

This paper discusses a new algorithm for estimation and reduction of vibrations in a switched reluctance motor (SRM) using magnetic circuit simulation in Matlab/Simulink environment. A nonlinear model is developed using magnetic circuit equations, wherein nonlinearity is added using inductance profile with back EMF. Dynamic characteristic of the SRM is simulated and it is verified experimentally. In this simulation, both current and voltage control technique are used to control the SRM. Fast Fourier transform is used to analyze electromagnetic torque in frequency domain, which gives the mechanical and magnetic vibration frequencies and their dB magnitude. The complete simulation and experimental results are presented.