Community Energy Storage. Communicating with a Smart Utility Grid Don Berkowitz

Transcription

1 Community Energy Storage Communicating with a Smart Utility Grid Don Berkowitz 2011 S&C Electric Company 1 IEEE PES Summer, 2011

2 CES A Virtual Power Plant A distributed, storage based power plant 2 MW Storage-based Substation-located 2 MW Storage-based Grid-edge Communications 2011 S&C Electric Company 2 IEEE PES Summer, 2011

3 CES A Virtual Power Plant Unlimited scalability no financing Cost-competitive within 1-2 years Superior feature set Limited energy storage Barriers are regulatory and "mindset 2011 S&C Electric Company 3 IEEE PES Summer, 2011

4 Leveraging the Capabilities of Distributed Storage Risk-averse climate of electric distribution Control system must leverage capabilities Edge-of-the-grid capacity management Balance/prioritizing multiple constraints Improved service reliability Islanding Reserve capacity for reconfiguration 2011 S&C Electric Company 4 IEEE PES Summer, 2011

5 New Challenges in Distribution Distribution grid design built for estimated growth Electric vehicles significant new load High non-linear demand while charging Two cars per household Multiple customers per transformer Growth cannot be predicted Multiple cars per transformer already happening Mindset-changing circumstances 2011 S&C Electric Company 5 IEEE PES Summer, 2011

6 Feeder Capacity Management Current Overcapacity Zone ~ A (minimum trip) ~ Assumptions gone wrong Abnormal weather Unexpected growth Unanticipated technology (Ex. PEVs) Protection Overload Emergency Continuous Cap. Capacity Time Normal or Planned Capacity 2011 S&C Electric Company 6 IEEE PES Summer, 2011

7 Feeder Capacity Management Underground Feeder Cutaway View Shielded Cable in Conduit Concretelined duct Pavement Sand/earth fill 2011 S&C Electric Company 7 IEEE PES Summer, 2011

8 Underground Feeder Capacity Thermal factors are complex Variation over length of run Cable life is dominated by thermal history Through-fault duty Integrated time while overcapacity 2011 S&C Electric Company 8 IEEE PES Summer, 2011

9 Underground Feeder Capacity Measurement tools Modeling tools Real-time capability 2011 S&C Electric Company 9 IEEE PES Summer, 2011

10 CES Distributed Energy Management Ability to address thermal capacity Transformer overload Phase-dependent issues Phase imbalance Voltage support Reactive power 2011 S&C Electric Company 10 IEEE PES Summer, 2011

11 Control System Architecture - Challenges Distribution equipment communications no Algorithms Reliability Integration with central office applications Cyber Security 2011 S&C Electric Company 11 IEEE PES Summer, 2011

12 Control System Architecture - Reliability Substation-centric application Colocation with critical equipment Reduction of NERC-level impacts Cyber security isolation 2011 S&C Electric Company 12 IEEE PES Summer, 2011

13 Reliability Fault tolerance Operation Center Substation 1 Substation 2 Substation 3 Feeders & Communication Infrastructure Fleet 1 Fleet 2 Fleet S&C Electric Company 13 IEEE PES Summer, 2011

14 Control System Architecture - Reliability Substation-hardened Self-contained Sized for individual substation Protected from failures of comm. backbone 2011 S&C Electric Company 14 IEEE PES Summer, 2011

15 Control System Architecture Integration with operation center & substation applications GIS OMS DMS/SCADA Circuit reconfiguration Volt/VAR 2011 S&C Electric Company 15 IEEE PES Summer, 2011

16 The Smart Grid CES Hub Control System Hub GUI HMI CES Hub (Dispatch Engine) Databases Configuration Real Time Historical Connectivity Wide Area Comm. DNP Device Server SCADA Substation DNP Devices 2011 S&C Electric Company 16 IEEE PES Summer, 2011

17 The Smart Grid CES Hub Control System 2011 S&C Electric Company 17 IEEE PES Summer, 2011

18 Control System Architecture Database-driven design Oracle database Secure Interoperable 2011 S&C Electric Company 18 IEEE PES Summer, 2011

19 Control System Architecture DNP Device Server XML-configurable Isolates applications DNP-agile 2011 S&C Electric Company 19 IEEE PES Summer, 2011

20 Control System Architecture Security again Self-contained Limited application environment Application whitelisting Application blacklisting Isolated from the Internet Call-home functions can t Intrusion protection Intrusion detection Single sign-on convenient and transparent 2011 S&C Electric Company 20 IEEE PES Summer, 2011

21 Conclusion Scalability and adaptability uniquely address uncertainty CES can be secure, reliable, cost-effective solution 2011 S&C Electric Company 21 IEEE PES Summer, 2011