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IEE Proceedings B - Electric Power Applications

Issue 2 • Date March 1993

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Displaying Results 1 - 8 of 8
  • Modular DC-DC convertor for high-output voltage applications

    Publication Year: 1993, Page(s):97 - 102
    Cited by:  Papers (21)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (348 KB)

    A modular DC-DC convertor for high-output voltage applications is presented. The proposed convertor consists of DC-DC modules whose inputs are connected in parallel and the outputs in series, with a control scheme that ensures input current sharing among the modules and regulated output voltage. Moreover, it utilises single feedback voltage sensing that achieves almost equal output voltage sharing... View full abstract»

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  • Review of resonant link topologies for inverters

    Publication Year: 1993, Page(s):103 - 114
    Cited by:  Papers (8)  |  Patents (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (843 KB)

    Resonant link inverter configurations have been proposed as a means of obtaining significantly lower switching losses, thereby allowing operating frequencies and switch power ratings to be raised. Resonant link topologies are analysed by means of time-domain simulation, and the frequency spectrum typical of a resonant link inverter is compared with one typical of a hard-switched inverter. The reso... View full abstract»

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  • New approach to switch modelling in the analysis of power electronic systems

    Publication Year: 1993, Page(s):115 - 123
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (573 KB)

    A new and efficient approach for the analysis of power electronic circuits using the modified nodal formulation of circuit equations is presented. The method is well suited for the development of dedicated simulation software for power electronic systems. Semiconductor switches are modelled as binary inductors, as a very low value of inductance (determined by the rating of the semiconductor) durin... View full abstract»

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  • High-performance reluctance generator

    Publication Year: 1993, Page(s):124 - 130
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (530 KB)

    The authors introduce the axially laminated anisotropic (ALA) rotor reluctance synchronous machine as a brushless high-performance generator. A new theory for steady-state performance analysis and determination of maximum power-conversion capability of reluctance generators is presented. The high efficiency, high power factor, and high power density of the ALA-rotor reluctance generator are demons... View full abstract»

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  • Twin rotor drive for an electric vehicle

    Publication Year: 1993, Page(s):131 - 138
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (490 KB)

    An original electric machine is described which has a single stator and two rotors, each core being of a disc geometry, with the stator sandwiched between the two rotors. The rotors carry squirrel cage windings, and are mounted on individual, independent shafts driving two wheels of an electric vehicle. The torque generated by each rotor depends on the slip of each rotor and the dimensions of the ... View full abstract»

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  • Analyses of static and dynamic characteristics of practical step-up nine-switch matrix convertor

    Publication Year: 1993, Page(s):139 - 146
    Cited by:  Papers (12)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (486 KB)

    The static and dynamic characteristics of a practicable step-up nine-switch matrix convertor under the control strategy proposed by Venturini are analysed fully by the recently presented circuit DQ transformation technique and signal flow graphs. The step-up nine-switch matrix convertor consists of nonideal voltage and current sources, such as occur in practical inductance and capacitance filters.... View full abstract»

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  • Solid-state medium voltage contactor

    Publication Year: 1993, Page(s):147 - 151
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (497 KB)

    The feasibility of using solid-state technology for certain medium voltage applications is investigated. The application considered is a 7.2 kV contactor unit which despite a number of design problems proved to be technically successful. The solid-state approach, despite its relative complexity and a certain cost penalty, offers the user certain advantages for this type of application. For the mom... View full abstract»

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  • Multielement transformers for switched-mode power supplies: toroidal designs

    Publication Year: 1993, Page(s):152 - 160
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (727 KB)

    The authors describe techniques for the design, construction and analysis of multielement transformers based on toroidal core transformer elements. It is shown that the multielement approach lends itself most readily to high frequency, low voltage DC-DC convertors. The design techniques for one multielement transformer are described in detail. Results for this, and a further three transformers, ar... View full abstract»

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