1. Advanced Energy Conference New York, NY October 31, 2012
The Architecture of the Next Generation Control Centers Anjan Bose Washington State University Pullman, WA
Advanced Energy Conference
New York, NY
October 31, 2012

2. Tomorrow’s Power System
Managing Future Power System Complexity will Require a New Grid Operating System

3. Drivers for the New Generation EMS
Tectonic Changes in the Electricity Grid
The power system is revolutionizing at an exponential pace into a highly interconnected, complex, and interactive network of power systems, telecommunications, the Internet, and electronic commerce applications
Drivers of Change
Variable Generation
Demand Response
Electric Vehicles
Smart Meters
Distributed Generation
PMUs
Communications

4. RC1
RCi
RC10 … …
CC1
CCj
CC10 … …
Sub1
Subk
Sub100
Act1-10
Sen1-100

6. Why is the New Generation EMS going to be fundamentally different?
More Real Time data
Phasor Measurements
Data from distribution (DG, DR, EV, MG, etc.)
Faster Communications – Larger Volumes
Intelligent Substations
Distributed Database
Architecture is Different

7. Proposed Communications

8. PMU Communications

9. Each Application – Different Data
Monitoring at the control center
Needs all data points
But at slow rates (every few seconds)
Special Protection Schemes
Needs few data points
But at fast rates (many times a second)
Each application must access this data in a different way
Moving real time data from source to application is a complex optimization task

10. Data Base Issues Real time data base must be distributed
Large amounts of calculated data must be part of this data base
Static data base must be distributed
Historical data base will require still another design
Substation data bases and system level data bases have to be coordinated
All data bases in the same interconnection will have to be coordinated
Standards will be key

11. Potential New Applications
Distributed vs Centralized
More calculations done at substations (e.g. Distributed State Estimator)
Automatic vs Manual
Closing the loop (e.g. Oscillation Detection vs Oscillation Control)
Wide-area control/protection (e.g. more SPS, more FACTS control)
Model based control (e.g. SE based SCOPF)

12. Where are we on this path?
PMU deployment and Substation Automation
Distribution Automation (including smart meters and smart customers)
ARRA Projects a big boost ($9B)
New Applications lagging
Need more interconnection-wide coordination
Need Utility-Vendor Partnerships