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IEE Proceedings B - Electric Power Applications

Issue 1 • January 1985

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Displaying Results 1 - 6 of 6
  • Analysis of dielectric measurements on switchgear bushings in British Rail 25 kV electrification switching stations

    Publication Year: 1985
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2119 KB)

    Diagnostic measurements have been carried out in the 25 kV electrification trackside switching stations on British Railways since 1972, following the discovery of audible discharge in the synthetic resin-bonded paper bushings. Laboratory measurements of discharge magnitude, capacitance, dielectric loss and ultrasonic noise were correlated with physical damage at the bushing foils and criteria for ... View full abstract»

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  • Microprocessor-based development system for PWM variable-speed drives

    Publication Year: 1985, Page(s):18 - 45
    Cited by:  Papers (28)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3355 KB)

    A new design philosophy is proposed for developing microprocessor-based power-electronic systems; it allows all the design stages from initial conception, analysis, simulation, synthesis, test and implementation, to be performed on the same microprocessor hardware/software configuration. The practical embodiment of this new design philosophy is demonstrated using a 16-bit microprocessor-based deve... View full abstract»

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  • Digital controller for thyristor current source

    Publication Year: 1985, Page(s):46 - 52
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (657 KB)

    This paper describes the circuits and algorithms used in a microprocessor-controlled AC/DC thyristor convertor to implement a wide-bandwidth closed-loop current source. The convertor consists of two three-phase bridge circuits for four-quadrant operation, with direct digital control using a M6809 microprocessor. The timing pulse generator is linked to the supply frequency via a phase locked loop, ... View full abstract»

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  • Direct drive system for an industrial robot using a brushless DC motor

    Publication Year: 1985, Page(s):53 - 56
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (422 KB)

    Although conventional commutator-brush DC servomotors and gearing systems have found wide application in drives for small- and medium-sized industrial robots, they have a number of limitations. The work described has involved the development of a brushless DC motor direct-drive system for a high-positional-accuracy robot, which overcomes these limitations and improves performance. Typical experime... View full abstract»

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  • Dual model of a DC machine with gyrators

    Publication Year: 1985, Page(s):57 - 60
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (461 KB)

    The multiport dual model of a DC machine with gyrators is a compromise. It possesses the same external behaviour as the multiport model and a similar internal configuration as the dual of the multiport model. The results of simulation by the dual model with gyrators are the same as by the multiport model. It is superior to the dual model as no modification in the external circuit is required for t... View full abstract»

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  • Erratum: Remote control of traction power over two wires

    Publication Year: 1985
    IEEE is not the copyright holder of this material | PDF file iconPDF (93 KB)
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