1. Practical Application of Microgrids Interconnected to the Distribution System: A Case Study of a Real-life, Grid-interconnected Microgrid
January 31, 2017

2. Who are we PowerStream:
Provides service to more than 380,000 customers residing or owning a business in 15 communities around the Greater Toronto Area
Employs over 500 employees.
Currently undergoing a merger with three other utilities in the Greater Toronto Hamilton Area
Korea Electric Power Corporation (KEPCO):
Responsible for over 90% of South Korea's electricity generation
Over 20,000 employees
Over 65 GW of installed capacity
*John—I don’t believe this number has ever been shared publicly and I actually don’t know it.
 I believe the only reference made in the MAADs is that there would be a reduction of 280 employees, achieved through voluntary exits and retirements.  The current number of employees keeps dropping because people leave and they aren’t replaced, but we’re estimating we have about 1600 currently.  Minus the 280. 

3. Why

4. Project Goals
Most outages at Penetanguishene are under 10 minutes; Eliminate these outages: Grid Resiliency & Outage Management (with greater visibility as a bonus)
Assess the system as a asset deferral strategy
Develop algorithms for the Microgrid Controller
Enter the market as a microgrid solutions provider

5. What we did at Penetanguishene
750kVA/500kWh Li-Ion Battery System
5 circuit automatic switches to facilitate FDIR
1 Step Voltage Regulator to correct voltage issues
Advanced Microgrid Controller (MiDAS)
Autonomous function & SCADA integration

6. The Battery Samsung SDI Batteries (Li-Ion) Individual Cell Monitoring
Automatic Voltage Equalization
Rack Level & Master BMS
Up to 2C discharge/charge
Integral fire suppression and HVAC

7. The Power Conversion System (PCS)
750KVA, 4 Quadrant inverter
IEEE 1547 Compliant
Integrated Area Level Controller
600VDC nominal
350VAC nominal
Integral fire suppression and HVAC

8. Switchgear, Transformer, Vacuum Circuit breakers, etc.
Other technology
Local Control/Server Room
Switchgear, Transformer, Vacuum Circuit breakers, etc.
75kV SVR
5 Automatic
Switches

9. Basic design

10. VCB, Transformers, Switchgear & Load Bank
The Final Product
Battery Container
Show Room
VCB, Transformers, Switchgear & Load Bank
PCS Container

11. The MG Controller

12. Tests
Black Start using 2 load banks (200kW and 1500kW as substitutes for the feeder
Battery Dispatch by global demand (autonomous)
Manual Control (P & Q setpoints)
Simulated FDIR scenarios

13. FDIR

14. Islanding
Omicron CMC 356
Triggering & recording was synchronized using GPS
Monitoring from SEL487e

15. Islanding

16. Elapsed time: over 42 minutes
Restoration
Elapsed time: over 42 minutes

17. Learnings
It works!
Still early stages; need to pursue other value propositions
Extensive EM&V scheduled & ongoing
Demand data integration was easy; price, not so much
Surprises: not enough outages

18. Thanks
A special thanks to Omicron

19. Questions?