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Two-level network architecture for open-access power systems with distributed generations

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6 Author(s)
Cheung, H. ; Ryerson Univ., Toronto, ON ; Lin Wang ; Hamlyn, A. ; Chen, F.
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Recently increased use of network-enabled devices in power systems, rapid development of distributed generations from renewable energy resources, and government-imposed open access competition have resulted utilities in greater reliance on computer networks for proper power grid operations. This paper proposes a new two-level architecture for power-grid computer networks and to strength the networks' security. A new network access control strategy and a new role-based access model are presented for increasing the power-grid network security. The new model extends general network access controls for a single security domain to multiple domains in the interconnected microgrids. A security policy managing method using XML is proposed to simplify the network security administration. This paper shows the significance of the proposed two-level architecture and role-based network access security for the protection, control and monitoring operations in distribution systems supplied with centralized bulk electricity generations and dispersed generations under open access environment.

Published in:

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Date of Conference:

20-24 July 2008

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