Abstract
Recently, in order to ensure the reliability and safety of trains, online condition monitoring and fault diagnosis of traction induction motors have become active issues in the area of rail transportation. The fault diagnosis algorithm can be developed and debugged in a real-time environment based on hardware-in-the-loop simulation (HILS). However, the dynamic space model of induction motors with stator interturn short-circuit faults faces the problem that the faulty state and the healthy state are not compatible, which is inconvenient for the HILS. In this paper, a fault injection model is proposed for the first time, which can realize the online switching between the healthy state and the faulty state of the motor. The feasibility and effectiveness of the proposed model are verified by simulation experiments the based on MATLAB/Simulink and dSPACE HILS platforms.
Highlights
Interturn Fault Diagnosis ResearchRegarded as the “heart” of rolling stock, traction systems provide the tractive effort to support the continuous operations of trains, and their safety and reliability are crucial [1]
Online condition monitoring and fault diagnosis of traction induction motors are an indispensable part of traction prognostics and health management (PHM) systems [4]
The classic fault motor model can be equivalent to a healthy motor model plus a fault injection model obtained by modelling the short-circuit coil
Summary
Regarded as the “heart” of rolling stock, traction systems provide the tractive effort to support the continuous operations of trains, and their safety and reliability are crucial [1]. The model of induction motors with interturn short-circuit faults has been studied in some of the literature [9,10,11,12,13], and the state-space representation of the dynamic equations suitable for digital simulation has been presented. The model of induction motors with interturn short-circuit faults has been studied in some of the literature [9,10,11,12,13], and the state-space representation of the dynamic. Due to the presence of fault parameters,interturn these models can short-circuit faces problem in thatand the cannot faulty be state and thetohealthy state areTherefore, not onlyfaults be used forafault simulation, switched a healthy state. Dynamic space model of induction motors with stator interturn short-circuit faults faces a.
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