d2-01_07i ndia 2013 1. role of ict in power system architecting a packet based network for to...
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D2-01_07 INDIA 2013
1. Role of ICT in Power System
Architecting a packet based network for to support current, developing and future utility use cases and
applicationsAndrew O’Brien, Australia
INDUSTRY DRIVERS AND CHALLENGES
• Major grid transformation with the increased penetration of distributed and renewable energy resources, advanced metering, distributed control and automation, multiservice networks, among others.
• Increase of distributed generation is tending towards a lack of visibility and control at distribution level.
• Communication flow models have largely followed a one-way power delivery flow from generation to consumer.
• Most communication networks consist of multiple point-to-point circuits connecting substations to control centers for SCADA and EMS applications, and point-to-point circuits between substations for protection applications.
THE FUTURE GRIDE WIDE AREA NETWORK
• Electrical grids are shifting to an any-to-any power delivery model.
AN ARCHITECTURAL APPROACH
TELEPROTECTION OVER PACKET NETWORKS
Stringent requirements• Network Latency expected to be 4~16ms• Tolerable jitter depends on the protection relay vendor and
is typically in the range of 0.25 – 1.0 milliseconds• Relay attachment requirements: C37.94, E1/T1, X.21, E&M,
RS422, and recently Ethernet• Transport emulation: CESoPSN, SATOP and EoMPLS.• Frequency synchronisation: Sync-E, 1588 PTP.• Traffic Engineering
EXAMPLES OF EVOLVING REQUIREMENTS
• 61850 Edition 2• Next Generation Energy Management Systems• Wide Area Monitoring, Control and Protection Schemes
NETWORK DESIGN PRINCIPALS
• Determinism• Path selection control• Security• Resiliency• Quality of Service• Traffic Engineering• Ease of Operations• Timing and Synchronisation• Multiple Traffic Type Support
CONCLUSIONS INDIA 2013
• Power industry is seeing a shift in WAN design from TDM to packet based networks
• Utilities have been deploying MPLS and other packet based networks in large scale for some time.
• Successful implementation require careful consideration and planning
INDIA 2013
Thank you!
Andrew O’BrienConsulting Systems Engineer