Analysis of the response of electric drive electrical parameters to typical groups of defects in crane mechanisms
Abstract
The paper proposes a mathematical description of typical mechanical defects in crane electric drive components in order to analyze their influence on the electrical parameters of an induction motor. The modeling was carried out on the basis of a dynamic motor model in a stationary two-phase α-beta coordinate system, taking into account the electromechanical coupling and inertial properties of the drive. Mechanical faults are represented as additional torque disturbances in the equation of rotor rotational motion. Four calculation cases corresponding to different defect groups are considered: tooth breakage, bearing cage defect, coupling looseness, and rail joint irregularity. The results of numerical simulation show that these defects cause pronounced changes in the stator current, differing in amplitude and pattern of manifestation. The obtained results confirm the potential of using electrical parameters for diagnosing the technical condition of the mechanical part of a crane drive.
About the Authors
S. D. Ivanov
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Sergey D. Ivanov, Associate Professor of the Department of Lifting and Transport Systems
105005, Moscow, 2nd Bauman str., 5
M. Yu. Romanov
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Mikhail Y. Romanov, Postgraduate student of the Department of Lifting and Transport Systems
105005, Moscow, 2nd Bauman str., 5
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For citations:
Ivanov S.D., Romanov M.Yu. Analysis of the response of electric drive electrical parameters to typical groups of defects in crane mechanisms. Machines and Plants: Design and Exploiting. 2026;(1):31-43. (In Russ.)
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