Design and development of a reliable, low noise, isolated digital current sensing instrument for industrial drive applications

  • Steven Peter Camilleri

    Student thesis: Masters by Research - CDU

    Abstract

    A design methodology for a low noise, high performance current measuring instrument for improving the performance of industrial electric motor drives.

    A background is given on the types of drive systems commonly used in modern electric vehicles and the performance requirements. The need for a reliable and high performance instrument to measure motor or battery currents is then discussed. A summary of some desirable features of such a device is presented. The requirements for a multitude of different vehicle types are simulated with a custom written software package.

    The design of a closest to ideal instrument is thoroughly examined and a summary of specifications and design parameters is presented. Finally results from a constructed system are shown and the advantages and disadvantages of the completed instrument are investigated. The completed system performs well and to specification and is proven to work as part of a current control system, but suffers from some dynamic response issues which produce distortion in certain situations.
    Date of Award2005
    Original languageEnglish
    SupervisorDean Patterson (Supervisor)

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