Reduction of speed ripple and vibration for switched reluctance motor drive via intelligent current profiling

The Optimization of the Ratio Between Rotor Slot Width and Rotor Tooth Pitch to Reduce Cogging Torque in Line-Start Permanent Magnet Synchronous Motors

“…where B r ( θ) is the residual magnetic distribution of permanent magnet along the circumference direction of air gap, h m (θ) the lenghth of PM in magnetization direction, g(θ,α) is the distribution of effective airgap length [10][11][12][13]. Therefore, the (3) is substituted into the (2), which can be rewritten as the (4).…”

Research on Torque Ripple Reductions for Switched Reluctance Motor

“…In the process of continuous flow, the current direction of the winding is constant, and the position of the rotor is still in the region of the positive torque. Because the algorithm uses the PWM single phase control mode, in the current phase of the torque control, should consider the first phase winding continued to flow generated electromagnetic torque [12][13][14][15][16][17][18].…”

“…For performing the development of key technologies, it is indispensable to understand thoroughly the key features of an SRM. In this Section, the governing equations of an SRM are first introduced, and then the sources of vibration and acoustic noise are considered [11][12][13][14][15][16][17][18].…”

Torque Ripple Reduction for Switched Reluctance Motor with Optimized PWM Control Strategy

“…A novel predictive current control is presented in [37], in which the actual current followed a reference current and a permanent identification was used to make it possible to control the motor quickly, even when the parameters were changing. In addition, a current profiling optimizing algorithm was proposed to reduce torque ripples in [38]. The MPC schemes presented in [39,40] were utilized to obtain the duty cycle using the pulse width modulation, the state error was taken into account, and lower torque ripples were achieved.…”