Sökning: "Faults of Induction Motors"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Faults of Induction Motors.

  1. 1. On Fault Detection, Diagnosis and Monitoring for Induction Motors

    Författare :Mohammed Obaid Mustafa; Mohamed El Hachemi Benbouzid; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Model based fault detection and diagnosis; Model free fault detection; Set Membership Identification SMI ; Uncertainty Bounds Violation Method; Model based Support Vector Classification; Linear and Nonlinear Classification; Minimum Volume Ellipsoid method; Broken Rotor Bars; Faults of Induction Motors; Three phase induction motor; Reglerteknik; Control Engineering;

    Sammanfattning : In this thesis, multiple methods and different approaches have been established and evaluated successfully, in order to detect and diagnose the faults of induction motors (IMs). The aim of this thesis is to present novel fault detection and isolation methods for the case of induction machines that would have the merit to be implemented online and being characterized by specific novel capabilities, when compared with the existing techniques. LÄS MER

  3. 2. On feature extraction of voltage disturbance signals

    Författare :Emmanouil Styvaktakis; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spectrum estimation; power quality; capacitor switching; transformer saturation; voltage dips; fault location; power sustem monitoring; induction motors; short time Fourier transform; power sustem faults;

    Sammanfattning : .... LÄS MER

  4. 3. Automating Power Quality Analysis

    Författare :Emmanouil Styvaktakis; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pattern classification; expert systems; induction motors; power system transients; voltage dips; power system faults; power quality; Kalman filtering; power system monitoring; transformer saturation; short time Fourier transform;

    Sammanfattning : The increased requirements on supervision, control, and performance in modern power systems make power quality monitoring a common practise for utilities. Large databases are created and automatic processing of the data is required for fast and effective use of the available information. LÄS MER

  5. 4. Faults detection and diagnosis for three phase induction machines

    Författare :Mohammed Obaid Mustafa; George Georgoulas; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Sammanfattning : Three phase induction motors have been intensively utilized in industrial applications, mainly due to their efficiency and reliability. These motors have good properties such as: increased stability and robustness, durability, large power to weight ratio, low production costs and controllability easiness. LÄS MER

  7. 5. Condition Monitoring of Stator Windings with a Networked Electric Drive

    Författare :Giovanni Zanuso; Viktória Fodor; Luca Peretti; Antonio Griffo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industry 4.0; condition monitoring; multi-drive systems; EtherCAT; CAN; stator interturn faults; stator insulation; accelerated aging.; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Electric drives are widely used in industry, where they are also part of the plant communication architecture. This architecture is challenged by the Industry 4.0 initiative that aims to make the devices in industrial plants more interconnected and with additional functionalities. LÄS MER