Background Smart Grid is changing the way we do business Fit and forget or Smart Grids? Different levels in automation

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2 Content Background Smart Grid is changing the way we do business Fit and forget or Smart Grids? Different levels in automation SGEM Highlights from different automation levels Process: Low-cost fault indicator Substation: Self-healing rural networks Substation: Centralized protection & control Network: Self-Healing city networks Network: Network management utilizing Smart Metering Enterprise: DA Strategy for urban networks Summary

3 Smart Grids are changing the way we do business Distribution Automation has an important role in both main functions: Enabler of energy-efficient and environmentally friendly energy market Critical infrastructure of society

4 Fit and Forget or Smart Grids? What it the economical optimum in a changing situation? Original visions from 2009 are still valid today Regulation has an important guiding role

5 Different levels of automation Location Enterprise Network Control Center Processed data Advanced Functions Supervision &Analysis Multiple substations Multiple data sources Multiple IT systems Substation IED Process Raw data Simple functions Protection &Control One IED/Substation One data source Distribution Automation

6 Current (A) Low-cost fault indicator Developed and field tested in collaboration with VTT, MIKES and ABB Harvests power from line with a current clamp Coherent detector reveals direction of current 3-phase unbalance measurement possible Nonlinearity <3%, 0-85A Accuracy ±2% First field tests April 2012, new tests in compensated networks on phase Measurement Data Phase A Phase B Phase C Sum Time (s)

7 Self-Healing rural networks Proof of Concept demo in Kirkkonummi SCADA/DMS Field tests conducted week 16/2012 Earth fault location with 1-2km accuracy (in some cases even few 10m accuracy) Located nearly 100% of faults Located also temporary faults COM600 RTU560 REF615 GACR M2M gateway Control Center 3G/GPRS Continuation project for 2013 New substation in compensated networks new algorithms researched (ABB, Fortum, VTT) REF615 Recloser - OVR3 GACR Disconnector station (UG) Substation A GACR = Recloser Grid Automation Control Cabinet for Recloser - OVR3 Disconnector station (OH) (O-1061) Disconnector station (OH) (O-1088)

8 Centralized Protection & Control Centralizing substation protection & control functionality from multiple bay level IEDs to one PC, tested in RTDS laboratory environment of TUT in collaboration with ABB RTDS is controlled with the help of a PC workstation Trip and start signals to RTDS RTDS DOPTO Card HV/MV Transformer Measurements are taken from each feeder in the network model run by the RTDS Control signals (i.e. trip signals) to feeder IEDs are sent as GOOSE messages GTNET Cards Voltage & current measurements (3x8) in IEC format The substation computer is equipped with centralized protection functions

9 Self-Healing City Networks Full automatic fault location, fault isolation and supply restoration for urban power distribution networks Based on reliable fault indicators, real time topology analysis of the network and automatic remote control of switches Core technology is the integration of SCADA, Network Information System and IED:s at the secondary substations, combined with a new generation of fault indicators. Participants: Helen Sähköverkko Oy, Tekla, ABB, Aalto University MMO1 MMO2 MMO3 W/2 W/2 W/2 W/2 SA 1 SA 2

10 Network management using Smart Metering AMI/AMR system can be used as an extension of SCADA and DMS for controlling and monitoring also fuse protected low voltage networks, already used by many utilities in Finland Asset management network data customer data Billing Control center DMS Measurement data base Balance settlement SCADA AMR system Demand Side Management Substation automation

11 Optimal DA coverage (%) DA Strategy for Urban Networks Optimal Distribution Automation Coverage: utilities can target the investments so that the cost/benefit ratio is optimum and the decrease in customer interruption cost is the most significant. The results demonstrate multiform Distribution Automation layout strategy for urban networks. Also the results in a real urban network are presented. 35% 30% 25% 20% 15% 10% 5% 0% Layout (1+1/2), Fin EMA Layout (1+1/2), Study Fin Layout (1+1/2), Study Fin + City Layout (2+1/2), Fin EMA Layout (2+1/2), Study Fin Layout (2+1/2), Study Fin + City Mixed Layout, Fin EMA Mixed Layout, Study Fin Partners: Helen and Aalto Mixed Layout, Study Fin + City

12 Summary Distribution automation is an important enabler for Smart Grids Efficient utilization of Smart Grid technologies is the cost-optimal solution Solutions require collaboration between many parties ICT providers Energy technology providers Distribution System Operators Energy retailers, service providers Research: Technical, economical and political/regulatory one organization cannot research this alone SHOK-programs and SGEM has provided a good ecosystem for researching and piloting the results Common view already during 2009 has led to many results and pilots

13 Jani Valtari