Within the scope of the development of autonomous vehicles, the mandatory reliability requirements of the electrical power supply, and consequently of the electrical distribution system (EDS), are increased considerably. In addition, the overall rising number of electrical functions leads to significantly higher electrical power demands, while strict cost, weight and packaging constraints must be upheld. Current developments focus on adding redundancies, enhancing physical robustness, or dimensioning critical components. New approaches address predictive power management, better diagnostic capabilities, and, the subject of this paper, alternative topologies and architectures [1]. These are derivations of the conventional tree structure, as well as ring- or linear-bus-based zonal architectures, which feature in part distributed storage devices or semiconductor switches that rearrange the power paths in case of a fault [2,3].The presented approach is a method for both the systematic description of EDS topologies and architectures and the assessment of their reliability. It is based on a data model designed for a simple but unique definition of the EDS, a graphical representation of the topology, an algorithm for the calculation of the reliability, and a straightforward cost assessment. It allows benchmarking and optimization of a large number of architectures, and enables the comparative analysis of the impact of both reliability- and cost-parameters, which often are not well known. In addition to the theoretical description, the paper presents comparative results for various EDS architectures and a Pareto- and sensitivity analysis, followed by a discussion of the next steps, for instance the application of an optimization algorithm using a rule-based generation of alternative architectures.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Evaluation of Future Topologies and Architectures for High-Reliability Electrical Distribution Systems


    Additional title:

    Sae Int. J. Adv. and Curr. Prac. in Mobility


    Contributors:

    Conference:

    WCX SAE World Congress Experience ; 2020



    Publication date :

    2020-04-14


    Size :

    9 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Electrical/electronical architectures: future trend

    Catena, M. / Cotignoli, G. / Mortara, P. et al. | British Library Conference Proceedings | 1999


    Technical Challenges in Future Electrical Architectures

    Schwabel, Robert | SAE Technical Papers | 2011


    Electrical System Architectures for Future Aircraft

    Emadi, Ali / Ehsani, Mehrdad | SAE Technical Papers | 1999


    Technical Challenges in Future Electrical Architectures

    Schwabel, R. / Society of Automotive Engineers | British Library Conference Proceedings | 2011


    Grounding topologies for resilient, integrated composite electrical power systems for future aircraft applications

    Jones, Catherine E. / Sztykiel, Michal / Pena-Alzola, Rafael et al. | IEEE | 2019