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IEE Proceedings B - Electric Power Applications

Issue 4 • July 1988

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Displaying Results 1 - 6 of 6
  • Optimum size of dissipative nonlinear turn-off snubber

    Publication Year: 1988, Page(s):165 - 171
    Cited by:  Papers (2)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (643 KB)

    The use of voltage dependent, saturable capacitors as nonlinear turn-off snubbers for power electronic switches is discussed. Emphasis is placed on the optimum dissipative snubber configuration. The snubber capacitance is optimised in terms of minimum total energy losses (consisting of the stored energy in the capacitor, and the energy loss in the power switch during turn-off). By means of a compu... View full abstract»

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  • New current control scheme for PWM inverters

    Publication Year: 1988, Page(s):172 - 179
    Cited by:  Papers (6)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (665 KB)

    With this scheme, the inverter switching frequency and output switching pattern are both predefined. Particular output voltage patterns can be selected by minimising a suitable objective function. Thus, the proposed scheme achieves precise current control along with the simultaneous optimisation of a performance objective. These features yield near-sinusoidal currents in the load with reduced curr... View full abstract»

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  • Analysis of conventional snubber circuits for PWM inverters using bipolar transistors

    Publication Year: 1988, Page(s):180 - 192
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (975 KB)

    The ideal behaviour of conventional capacitive and inductive snubbers for bipolar transistors in PWM inverters is described in terms of the equivalent circuits that are operational during the switch-on and switch-off sequences. These equivalent circuits are analysed so that all currents and voltages during switching conditions can be predicted analytically, and the describing equations are tabulat... View full abstract»

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  • Optimum size of dissipative nonlinear turn-off snubber

    Publication Year: 1988, Page(s):165 - 171
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (841 KB)

    The use of voltage dependent, saturable capacitors as nonlinear turn-off snubbers for power electronic switches is discussed. Emphasis is placed on the optimisation of such a nonlinear turn-off snubber, is dissipative snubber configuration. The snubber capacitance is optimised in terms of minimum total energy losses (consisting of the stored energy in the capacitor, and the energy loss in the powe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New current control scheme for PWM inverters

    Publication Year: 1988, Page(s):172 - 179
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (912 KB)

    In the paper, a new current control scheme for PWM inverters is described. With this scheme, the inverter switching frequency and output switching pattern are both predefined. Particular output voltage patterns can be selected by minimising a suitable objective function. Thus, the proposed scheme achieves precise current control along with the simultaneous optimisation of a performance objective. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of conventional snubber circuits for PWM inverters using bipolar transistors

    Publication Year: 1988, Page(s):180 - 192
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1220 KB)

    The ideal behaviour of conventional capacitive and inductive snubbers for bipolar transistors in PWM inverters is described in terms of the equivalent circuits that are operational during the switch-on and switch-off sequences. These equivalent circuits are analysed so that all currents and voltages during switching conditions can be predicted analytically, and the describing equations are tabulat... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.