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This paper describes an investigation into the reduction of vibration and acoustic noise in switched reluctance motor. The vibrations of electric motors are mainly determined by two factors, radial force excitation and structure borne transfer function. The radial force, which is the dominant source of vibration, was analyzed analytically first. Based on the analysis, it was derived that vibration...
This paper proposed a method to compensate the unbalanced magnetic force in 12/8 switched reluctance motor. Using two-dimensional transient finite element analysis coupled with external circuits, both motor and inverter could be modeled to study the performance of motor. Airgap nonuniformity caused by eccentricity between the stator and rotor axes was found to be the main source of unbalanced magnetic...
This paper investigated rotor eccentricity effects on switched reluctance motor (SRM) and reduction of these effects by winding method. The motor was simulated by using 2-D transient magnetic finite-element (FE) analysis coupled with external circuits. The main exciting force of the vibration is the electromagnetic force in the stator that is calculated using Maxwell stress method. Serial connection...
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