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    Generalized converter modulation and loss estimation for grid interface applications

    Access Status
    Fulltext not available
    Authors
    Gupta, R.
    Ghosh, Arindam
    Joshi, A.
    Date
    2008
    Type
    Conference Paper
    
    Metadata
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    Citation
    Gupta, R. and Ghosh, A. and Joshi, A. 2008. Generalized converter modulation and loss estimation for grid interface applications, in - (ed), Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE, Jul 20 2008. US: Institute of Electrical and Electronics Engineers ( IEEE ).
    Source Title
    2008 IEEE Power & Energy Society General Meeting
    Source Conference
    Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE
    ISBN
    978-1-4244-1905-0
    URI
    http://hdl.handle.net/20.500.11937/3394
    Collection
    • Curtin Research Publications
    Abstract

    In this paper, a generalized converter based on the cascaded H-bridge converter topology has been proposed to be used for the grid interface applications. This includes application of grid compensation and distributed generation interface to the grid. Basic H-bridge modules can be used to build a suitable three-phase voltage source converter (VSC) topology for any medium voltage distribution system application. A generalized multicarrier closed loop converter modulation has been used for the VSCs. The generalized converter modulation has a feature of equal loss distribution among each cell and all the device units in one cell are stressed uniformly. A methodology has been suggested to estimate the total losses in the converter circuit. This includes transformer losses, converter losses and passive component losses. The loss estimation is carried out for a single cell only and the total estimation is obtained by multiplication with the number of cascaded units. A case study of the application of shunt compensator for grid application has been considered to verify the proposed methodology modulation and loss estimation. The results are validated through PSCAD/EMTDC simulation studies.

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