Title :
Two-level network architecture for open-access power systems with distributed generations
Author :
Cheung, Helen ; Wang, Lin ; Hamlyn, Alexander ; Chen, Frank ; Yang, Cungang ; Cheung, Richard
Author_Institution :
Ryerson Univ., Toronto, ON
Abstract :
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.
Keywords :
XML; authorisation; computer networks; distributed power generation; power engineering computing; power generation control; power grids; renewable energy sources; XML; computer network; distributed generation; network access control strategy; network security control; network-enabled device; open-access power system; power-grid operation; renewable energy resource; two-level network architecture; Access control; Computer architecture; Computer networks; Distributed control; Distributed power generation; Power generation; Power grids; Power system security; Power systems; Renewable energy resources; Computer networks; DG; Distribution system operations; Network architecture; Power system communications; Power system security; Protocols; management; security;
Conference_Titel :
Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE
Conference_Location :
Pittsburgh, PA
Print_ISBN :
978-1-4244-1905-0
Electronic_ISBN :
1932-5517
DOI :
10.1109/PES.2008.4596923