NDLI: Modified magnetic-equivalent-circuit approach for various faults studying in saturable double-cage-induction machines

Content Provider	IET Digital Library
Author	Naderi, Peyman
Abstract	Modified magnetic-equivalent circuit for a double-cage-induction machine in both healthy and faulty cases is presented in this study while slot skewing, saturation effect and also space harmonics are considered. Moreover, in simulation, pole numbers, rotor bars and slot numbers are chosen arbitrarily and the behaviour of the saturable double-cage-induction machine is studied under various kinds of faults. Broken bar in both inner and outer cages and also inter-turn short circuit of stator windings are modelled and fault detection methods are presented. Differential equations are converted into algebraic equations using trapezoidal technique and are solved together with non-linear magnetic equations simultaneously. To reach this aim, at first, a single set of the system equations including magnetic and electric equations are generated, and then they are solved by the Newton–Raphson method in each time step. As an advantage of this study, the presented model is capable of modelling the healthy and faulty machine under various kinds of faults by a single model which has profound effect on reducing the complexity of equations and the simulation time. Finally, effectiveness of the proposed method is verified using finite-element method via Flux software.
Starting Page	1224
Ending Page	1234
Page Count	11
ISSN	17518660
Volume Number	11
e-ISSN	17518679
Issue Number	Issue 7, Aug (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/11/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2016.0782
Journal	IET Electric Power Applications
Publisher Date	2017-08-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Algebraic Equation Asynchronous Machine Broken Bar Electric Equation Electric Machine Analysis Computing Equivalent Circuit Fault Detection Method Fault Diagnosis Faulty Machine FEM Finite Element Analysis Finite Element Method Flux Software Healthy Machine Inner Cages Inter-turn Short Circuit Interpolation And Function Approximation Magnetic Circuit Modified Magnetic-equivalent-circuit Approach Newton-Raphson Method Nonlinear Magnetic Equation Numerical Analysis Other Electromagnetic Device Application Outer Cages Pole Numbers Power Engineering Computing Rotor Bars Saturable Double-cage-induction Machine Saturation Effect Simulation Time Slot Numbers Slot Skewing Space Harmonics Stator Winding Trapezoidal Technique
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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