1. NERC Update: Current Activities Ryan Quint, Ph.D., P.E.
Senior Manager, Advanced Analytics and Modeling
WECC MVWG Meeting
June 2017

2. Overview
This presentation focuses on technical works related to the activities of NERC and the NERC technical committees, including:
System Analysis and Modeling Subcommittee (SAMS)
Power Plant Modeling & Verification Task Force (PPMVTF)
Load Modeling Task Force (LMTF)
Synchronized Measurement Subcommittee (SMS)
Methods for Establishing IROLs (MEITF)
Solar Resource Performance Task Force (SRPTF)
NERC System Analysis
NERC Advanced Analytics & Modeling

3. Modeling Notifications
EX2000
GENTPJ
Gas Turbine Governors
Renewable Energy System Modeling
Composite Load Model Benchmarking

4. Guideline on Integrating VER into Weak Power Systems
Guideline under industry comment period

5. Guideline on Reactive Power Planning
Available HERE

6. NERC List of Acceptable Models
Available HERE
Latest version posted, working on updated version based on feedback from last SAMS meeting
Simplified, clearer version of NERC Libraries of Standardized Powerflow Parameters and Standardized Dynamics Models

7. Node-Breaker Representation in Planning Models
Node-Breaker Modeling Proposal is available HERE
Webinar materials available HERE
Source: PTI
Source: PowerWorld
Source: Powertech

8. Guideline on PPMV for Synchronous Machines
Source: US ACE
Source: GE
Source: Duke

9. Guideline on PPMV for Inverter-based Resources
Source: First Solar
Source: First Solar

10. MOD-025 Discussions
Source: Kestrel
Source: USBR
Source: IESO

11. Load Model Benchmarking
Source: EPRI
Source: EPRI

12. DER Modeling Guidelines
Guideline on Modeling DER in Dynamic Load Models – HERE
Guideline on DER Modeling – under industry comment

13. Forced Oscillation Guideline
Guideline on Forced Oscillation Monitoring & Mitigation – under industry comment

14. Oscillation Analysis using Interconnection-wide PMU Data
Objective: understand modal characteristics of each interconnection using high-resolution, time-sync’d data
Mode shape, mode frequencies, mode damping ratio
Provide utility industry with better fundamental understanding of inter-area modes and forced oscillations on the BPS
Use actual data to characterize system; possibly benchmark with model-based approaches
Explore oscillation analysis tools available to industry
Source: Montana Tech

15. Reference Document on Linear State Estimation
Plans to develop short reference document on LSE and application to real power systems
Source: SCE

16. PMU Data Quality and Data Sharing Guidelines
SMS identified issues with “super PDC to super PDC” communications
Typically between ISO/RC/BA to other ISO/RC/BA
Need recommendations related to:
Planned and Unplanned PMU Outages
Forwarded data stream, raw versus manipulated
Name changes
NERC IDCODEs
PMU Registry 
Plans to develop ad hoc group to tackle these high priority topics.

17. MEITF Guideline on Establishing IROLs
Instability, Cascading, and Uncontrolled Separation

18. MEITF - Simulating Instabilities

19. EI Frequency Response Analysis

20. NERC/WECC Inverter Task Force Blue Cut Fire Disturbance Report

21. NERC Solar Resource Performance Task Force
Group will formalize and continue under new TF name
Focus on planning-related aspects
Recommended inverter performance
Ride-through
Momentary cessation
Return to operation
Phase lock loop robustness
Frequency measurement stability
Coordinated interconnection-wide simulations to identify any reliability risks in future
Modeling capabilities and practices
Seeking experts in area of inverter controls design and simulation of inverter-based resources
Announcement coming soon

22. MOD-032 Designee Update
Case Quality – working with PPMVDTF to identify how metrics will be incorporated in case creation data checks
Case Fidelity – no identified fidelity issues in WECC
Approved Model List – WECC list acceptable, more restrictive than NERC list

23. Upcoming Workshops NERC-NATF Power System Modeling Workshop
June 20-21, 2017 in Oak Brook, IL (ComEd)
Variable Energy Resource Modeling Workshop
August 1-2, 2017 in Atlanta, GA (NERC)
NERC-NASPI Forced Oscillation Workshop
September 27, 2017 in Springfield, MA (joint with NASPI)

24. Questions?