1. Frankfurt (Germany), 6-9 June 2011 MARTENSEN – DE – Session 4 – 1221 The Cell Controller Pilot Project (CCPP): From Surviving System Black-Out to Market Support  Energinet.dk  Spirae Inc  Energynautics GmbH  SE

2. Frankfurt (Germany), 6-9 June 2011 CCPP: Background  Blackout experience due to transmission system failure  Large amount of Distributed Energy Resources in Denmark  Further increasing share of renewable energy sources in the future MARTENSEN – DE – Session 4 – 1221

3. Frankfurt (Germany), 6-9 June 2011  Surviving transmission system black-out by safely transitioning into island operation  TSO support: Virtual Power Plants for active and reactive power independently  DNO Support: Advanced voltage control  Platform for market aggregators of distributed generation resources MARTENSEN – DE – Session 4 – 1221 CCPP: Objectives

4. Frankfurt (Germany), 6-9 June 2011  60 kV grid cell below one 150/60 kV transformer 13 each 60/10 kV substations with tap changer controlled transformers  5 CHP plants / 15 synchronous generators, total installed capacity of 32.5 MW  47 Danish-style wind turbines, total installed capacity of 37 MW  Rural area, villages and small cities (>1000 km²) MARTENSEN – DE – Session 4 – 1221 CCPP: The Pilot Cell

5. Frankfurt (Germany), 6-9 June 2011  Started in 2005  Field Tests with reduced-sized Cell in 2008 Grid-connected and island functions  Field tests using the entire Cell in 2010 Grid-connected functions  Final field tests using the entire Cell in 2011 Grid-connected and island functions MARTENSEN – DE – Session 4 – 1221 CCPP: Project Status

6. Frankfurt (Germany), 6-9 June 2011  To be used by Power Balance Authorities  Group and dispatch of CHPs or Wind Turbines  Multiple Markets: Day-ahead scheduling Merit order dispatch based on price information Up-regulation and down-regulation  Automatic dispatch validation against power system/component limits MARTENSEN – DE – Session 4 – 1221 CC Functions: Market Operations

7. Frankfurt (Germany), 6-9 June 2011  Conventional distribution systems use only transformer tap changers for voltage control.  The Cell Controller uses reactive power setpoints of distributed energy resources first, where available. Reduced wear on tap changers Smoother voltage for consumers and generators MARTENSEN – DE – Session 4 – 1221 CC Functions: DNO Voltage Control

8. Frankfurt (Germany), 6-9 June 2011  Controlled load flow at single point of connection  Active Power VPP Automatic asset dispatch to meet setpoint Disables Market Operations  Reactive Power VPP Uses assets dispatched by other means Reduces voltage control to tap changer control  Consideration of local system/component limits MARTENSEN – DE – Session 4 – 1221 CC Functions: TSO Virtual Power Plants

9. Frankfurt (Germany), 6-9 June 2011  Based on receipt of external trigger signal  Balance load and generation Load/generation shedding if necessary  Open the Cell circuit breaker (within <5 seconds)  Automatic voltage & frequency control in island  Automatic load restoration  Resynchronization MARTENSEN – DE – Session 4 – 1221 CC Functions: Emergency Island

10. Frankfurt (Germany), 6-9 June 2011 MARTENSEN – DE – Session 4 – 1221 Field Tests 2010: DNO Voltage Control

11. Frankfurt (Germany), 6-9 June 2011 MARTENSEN – DE – Session 4 – 1221 Field Tests 2010: Reactive Power VPP

12. Frankfurt (Germany), 6-9 June 2011 MARTENSEN – DE – Session 4 – 1221 Field Tests 2010: Active Power VPP

13. Frankfurt (Germany), 6-9 June 2011  All originally envisioned functions implemented and tested in simulations and in the field  Grid-connected functions working in 2010 Minor improvements for 2011  Grid-connected functions comprehensively field tested in May 2011 with success  Island functions to be field tested in June 2011 MARTENSEN – DE – Session 4 – 1221 Conclusions

14. Frankfurt (Germany), 6-9 June 2011  Cell Controller Pilot Project is concluded with final field tests 2011.  Possible further deployment of the Cell Controller system on the island of Bornholm  Future distribution systems will provide further/improved distributed control resources that can be utilized by the Cell Controller. MARTENSEN – DE – Session 4 – 1221 Outlook