A New Topology for Simultaneous AC-DC Distribution with the same Line

Li Zhang; Qing Yu; Lei Cao; Liang Zou; Tong Zhao

doi:10.4028/www.scientific.net/AMR.732-733.757

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 732-733A New Topology for Simultaneous AC-DC Distribution...

A New Topology for Simultaneous AC-DC Distribution with the same Line

Abstract:

A new topology for simultaneous AC-DC distribution along the same line is proposed in this paper to integrate DC power with the existing alternating current (AC) distribution, which incorporates a zigzag transformer and a boost chopper. The zigzag transformer is utilized to achieve either coupling or decoupling of the AC and DC power without sensible iron-core saturation due to voltage canceling out on one phase. The boost chopper is used to achieve DC power flow and keep the DC ratings at each node. A simulation model of the novel topology is established with PSCAD software, and detailed comparison verifies that the new topology with a zigzag transformer is preferable to that with a common transformer for simultaneous AC-DC distribution scheme, indicating a promising future of the proposed technology.

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Periodical:

Advanced Materials Research (Volumes 732-733)

Pages:

757-761

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.732-733.757

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Online since:

August 2013

Authors:

Li Zhang*, Qing Yu, Lei Cao, Liang Zou, Tong Zhao

Keywords:

Boost Chopper, Iron-Core Saturation, Simultaneous AC-DC Distribution, Zigzag Transformer

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* - Corresponding Author

References

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