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IEE Proceedings B - Electric Power Applications

Issue 3 • May 1981

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Displaying Results 1 - 10 of 10
  • Translational forces on discrete metallic objects in travelling magnetic fields

    Publication Year: 1981, Page(s):137 - 148
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1357 KB)

    Translational magnetic forces produced by a travelling field on basic shapes (block, cylinder and sphere) are calculated. The induction force on small nonferrous objects is considered and a condition for an optimum frequency deduced. Experimental evidence is given in support of the findings. The dynamic solution for the behaviour of a small magnetic object in an accelerating field is given and the... View full abstract»

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  • Modelling of traction load distortion in electricity supply systems

    Publication Year: 1981, Page(s):149 - 156
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1172 KB)

    A modelling method is described which has been used to study the harmonic and fundamental problems associated with thyristor- and diode-controlled traction loads. The effect of changing system parameters, such as the number of overhead lines fed from a feeder transformer, is shown. Different bridge configurations are also demonstrated and, in particular, the use of a commutation reactor in an asym... View full abstract»

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  • High-field self-starting permanent-magnet synchronous motor

    Publication Year: 1981, Page(s):157 - 160
    Cited by:  Papers (22)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (530 KB)

    A number of configurations of self-starting permanent-magnet synchronous motor have been developed in recent years. This paper describes a form of motor having a high efficiency/power-factor product. Use can be made of ferrite, Alnico or rare-earth magnets. The machine is particularly suitable for variable-speed drives involving the combination of an inverter and one or more synchronous motors, wh... View full abstract»

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  • Negative sequence impedance of converters

    Publication Year: 1981, Page(s):161 - 166
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (732 KB)

    The fundamental frequency behaviour of power convertors to unbalanced supply voltages is described in the paper. The model used caters for the effect of variable unbalance, variable firing angle, different firing systems, and the effect of a noninfinite DC reactance. The results are of use for a wide range of applications, such as HVDC and power drives. View full abstract»

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  • Three-phase pulse-amplitude and width-modulated inverter system

    Publication Year: 1981, Page(s):167 - 171
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (527 KB)

    The proposed 3-phase stepped wave inverter is based on a new method of controlling the double bridge inverter. The control of individual bridges is programmed to yield a stepped voltage waveform with six steps per quarter cycle and a total harmonic distortion of 7.75%. When voltage control is introduced, the proposed pulse-amplitude and width-modulated inverter has predominant harmonics of the 23r... View full abstract»

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  • Load-line diagrams applied to reactive compensated loads in AC systems

    Publication Year: 1981, Page(s):172 - 174
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (250 KB)

    A diagrammatic method is given, which is useful in describing how static reactive compensators, such as the saturated reactor, function in circuits which achieve a constant AC busbar voltage. View full abstract»

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  • Electrical Systems Analysis and Design for Industrial Plants

    Publication Year: 1981
    IEEE is not the copyright holder of this material | PDF file iconPDF (196 KB)
    Freely Available from IEEE
  • Exterior Lighting for Industry and Security

    Publication Year: 1981
    IEEE is not the copyright holder of this material | PDF file iconPDF (196 KB)
    Freely Available from IEEE
  • High-performance eddy-current dynamometers

    Publication Year: 1981, Page(s):176 - 177
    IEEE is not the copyright holder of this material | PDF file iconPDF (343 KB)
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  • High-performance eddy-current dynamometers

    Publication Year: 1981, Page(s):177 - 179
    IEEE is not the copyright holder of this material | PDF file iconPDF (302 KB)
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