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A comparison of noise reduction currents in 36-24 and 18-12 switched reluctance motors in all operating region is presented. Radial force profile in these two machines are compared. It is seen that the difference in radial force profile causes different optimized current to reduce the noise in switched reluctance motor. Analysis, simulation, and experimental results are presented to verify the proposed...
One of the major topics of switched reluctance machines (SRMs) is how to reduce the acoustic noise and vibration without the decrease in efficiency. In this paper, a novel current profiling method is proposed to reduce the rms current while flatting the radial force sum to reduce the acoustic noise and vibration. The proposed method is adopted to the 18/12 SRM which has the competitive outer dimensions,...
In this paper, an approximation of radial force in highly saturated region of a switched reluctance motor is investigated. From FEM results, it is known that radial force is depending on two components, those are electrical rotational position and current. In addition, the mutual effect of another phase is also included in the approximation. The principle of radial force approximation is based on...
A novel method is proposed to derive the current waveform reduce noise and vibration of a switched reluctance motor in magnetically saturated region. Principle of noise and vibration reduction is based on reducing the variation of the radial force sum. To realize the minimum variation in the sum of radial forces, radial force expression for each phase should be derived. Radial force expression is...
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