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An equivalent circuit model of a double-armature rotary-linear induction motor is proposed. The stator of the motor possesses rotary and linear-tubular armatures placed aside one another. Both armatures interact with a cylindrical double layer solid rotor which can move rotary, linearly or with helical motion. The static end effect in linear armature and the dynamic longitudinal end effects which...
This paper presents the results of running both a transient, finite element model and an equivalent circuit model of an induction motor with broken rotor bars and/or broken end rings. The frequency analysis of the terminal current shows a component that can be identified as being caused by the broken rotor bar.
This paper refers to the teaching of electromagnetic structure of induction machine, of steady state characteristics and of dynamic and transient machine behaviors based on finite element models and analysis of simulation results. Magnetoharmonic and transient models are used to solve field-circuit, respectively field-circuit-rotating motion problems.
This paper examines the behavior of three phase induction motors with internal fault conditions under sinusoidal supply voltages. Two types of induction machine internal faults are investigated, rotor broken bar, and stator shorted turns faults. Early detection and diagnosis of these faults are desirable for condition assessment, maintenance schedule and improved operational efficiency of induction...
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