“…Some examples are speed control of dc motors [94], [117], diagnostics of induction motor faults [24], [25], [41], [42], induction motor control [17], [18], [56], [127], and current regulator for pulsewidth-modulation (PWM) rectifiers [31]. Maintenance and sensor failure detection was reported in [82], check valves operating in a nuclear power plant [57], [114], and vibration monitoring in rolling element bearings [2].…”