Abstract: When electrical induction motors are started direct on-line they generate a considerable pulsating torque. This start up torque can create problems when the motor is connected to mechanical loads ...

Abstract: A method is proposed to detect shaft torsional vibrations in AC motors and generators from their stator currents. This is achieved by extracting current components at specific frequencies which ...

Abstract: The envelope response of a secondary system is derived for the case where the primary system is subjected to nonstationary stochastic excitation. An approximate closed form expression for the ...