The alternate arm converter and hybrid cascaded multi-level converter are two promising hybrid multi-level converters for long-distance overhead-line-based high-voltage DC transmission systems. This article first outlines the basic topologies, mathematical equations, and switching patterns of both the alternate arm converter and hybrid cascaded multi-level converter; the initial required number of H-bridge cells in the wave-shaping circuits and series-connected insulated-gate bipolar transistors in the director switches of the alternate arm and hybrid cascaded multi-level converters are calculated. Then considering the operational characteristics, including the transient voltage stresses, the over-insulated-gate bipolar transistor and diode reliability of the individual semiconductor device in the alternate arm and hybrid cascaded multi-level converters are initialized. Further, the reliability analysis of the two hybrid multi-level converters is carried out, and the optimal redundancy configuration method of wave-shaping circuits and director switches is proposed and calculated by the first-order differences of the three-dimensional surfaces, in which an objective function is established that reconciles reliability and investment of hybrid multi-level converters. Finally, numerical calculations successfully validated the effectiveness of the proposed redundancy configuration method.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optimal Redundancy Configuration of Wave-shaping Circuits and Director Switches in Hybrid Multi-level Converters



    Published in:

    Publication date :

    2016




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    53.33 / 53.33 Elektrische Maschinen und Antriebe



    BATTERY CONTROLLER WITH MULTI-LEVEL REDUNDANCY

    HO MINGHUNG | European Patent Office | 2024

    Free access




    Frequency Converters Spectral Inverters and Switches Based on Four-Wave Mixing in Semiconductor Optical Amplifiers

    IEEE; Lasers and Electro-Optics Society | British Library Conference Proceedings | 1997