Position Estimation in Switched Reluctance Motor Drives Using the First Switching Harmonics Through Fourier Series

Design and modeling of open-loop components for a biomedical application

“…At any given rotor position, the phase inductance also varies with the instantaneous phase current. Therefore, the phase inductance versus mover position will be represented by Fourier series 20, and the nonlinear variation of its coefficients with current will be expressed by polynomial functions (22,23), [21][22][23][24][25][26]:…”

A Switching Flux-linkage Reference-based Sensorless Method for Switched Reluctance Motor Drives

“…Several sensorless methods have been studied in the past [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. For low-speed operation, the pulse injection based methods [2][3][4][5][6][7][8] are the better choice.…”

“…Some similar methods are still widely investigated [10,11]. But in [12][13][14][15][16][17][18], the 3D lookup table is replaced by an analytical model [12,13], fuzzy logic [14], neural networks [15][16][17], and a neural-fuzzy system [18].…”

Position sensorless control for switched-reluctance motor drive with adaptive commutation tuning

“…Till now, there have a lot of existing sensorless control methods for SRM drive [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Basically, the existing position sensorless methods can be categorized into [8]: (i) waveform detection methods [8]: one of the possible approaches is that the winding current waveform within a PWM switching period is sensed and processed to yield the rotor position dependant inductance, and thus the estimated rotor position is obtained by post processing; (ii) flux linkage methods [8][9][10]: the phase winding flux linkage O is first obtained from the sensed voltage and current.…”