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Strategy and Role-based Model of Security Access Control for Smart Grids Computer Networks

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5 Author(s)

Recent development of microgrids in power systems, introduction of open access competition by governments in electricity industries, and increased use of network-controlled devices in power systems have resulted utilities in a greater reliance on computer networks for proper power-grid operations. This paper proposes a new network access control strategy and role-based model to increase the power-grid network security. The new model extends the network access control from a single security domain to multiple domains for interconnected microgrids. This paper also proposes a security policy managing method using XML to simplify power-grid network security administrations. With the proposed method, the authorization is independently defined and separated from policy representations and implementation mechanisms, and a digital credential is introduced to establish trust and role assignments for users in different microgrid domains. Case studies of the new model are presented.

Published in:

Electrical Power Conference, 2007. EPC 2007. IEEE Canada

Date of Conference:

25-26 Oct. 2007