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Secure Integration of DER into Smart Energy Grid and Smart Market

Authors:
Steffen Fries
Rainer Falk
Henry Dawidczak
Thierry Dufaure

Keywords: device authentication; firewall; decentralized energy resource, substation automation; smart grid; smart Market, IEC 61850, IEC 60870-5, IEC 62351, XMPP

Abstract:
The integration of decentralized energy resources and loads into the smart energy grid and into smart market is gaining more importance to cope with the increasing demand on energy while reducing load on the energy transmission network that is not affected by energy exchange between local generation and consumption. Characteristic for the involved control systems is the data exchange between intelligent electronic devices (IEDs), which are used to monitor and control the operation. For the integration Decentralized Energy Resources (DER), these IEDs provide the data for obtaining a system view of connected decentralized energy resources – DER. Based on this system view a set of DER, realizing a Virtual Power Plant (VPP), can be managed reliably. In substation automation, the standard IEC 61850 is used to enable communication between similar IEDs to control the central energy generation and distribution. This standard being enhanced with features and mappings to enable its application also for DER. One problem to be solved here is the integration of IEDs residing on a customer network, most likely to be operated behind Firewalls and Network Address Translation (NAT). The solution required must ensure end-to-end secured communication between DER and control center also over public networks. Here, adequate IT security measures are a necessary prerequisite to prevent intentional manipulations, affecting the reliable operation of the energy grid. This paper investigates into currently available security measures and utilizes them to propose a secure communication architecture for DER integration. The described solution is currently proposed within the International Electrotechnical Commission (IEC) for enhancements of the energy automation communication standard IEC 61850. Besides that, this paper also investigates into open issues related to the secure integration of DER.

Pages: 56 to 61

Copyright: Copyright (c) IARIA, 2015

Publication date: June 21, 2015

Published in: conference

ISSN: 2308-3727

ISBN: 978-1-61208-414-5

Location: Brussels, Belgium

Dates: from June 21, 2015 to June 26, 2015