1. Model Validation using PSS®E
Ryan D. Quint, Ph.D., P.E.
Staff Coordinator, NERC SMS, SAMS
WECC JSIS Meeting
September 22-23, 2015

2. Playback model will be in PSS®E v34.1 (currently on v34.0)
Background & Status
We have been working with PTI PSS®E to get playback functionality in the standard model library
Playback model will be in PSS®E v34.1 (currently on v34.0)
Have released the .dll file for compatibility with v33.1
Add model library:
psspy.addmodellibrary(‘…PATH\plbvfu1_v33.dll’)

3. PLBVFU1 Model Structure
Example .dyr Record
1 'USRMDL' 1 'PLBVFU1' 'UNIT1_pmu' /
v34: Max file name length of 12 characters
v33: Max file name length of 2 characters

4. PLBVFU1 Model

5. Model plays back known set of voltage and frequency signals
PLBVFU1 Model Overview
Model plays back known set of voltage and frequency signals
PLBVFU1 acts as a generator model
Don’t attach AVR or governor to the machine associated with PLBVFU1
Voltage signal played back is internal (Thevenin) voltage of the playback generator
ZSORCE of generator used to represent PLBVFU1 should be non-zero
V and F signals may be soothed via first-order block with constant Tv and Tf

6. “.plb” Data File
Signals played in (voltage and frequency) read from file defined in dynamics record – “.plb” file
Simple comma-separated file structure
Relative Time (from 0)
Voltage
Frequency t V f P Q

7. Model Structure for V and δ

8. Testing the Model
XLINE =
MVABASE = 10000
XSOURCE = 0.05

9. Preliminary Testing Results

10. Preliminary Testing Results

11. Validated Unit Results

12. Industry (SMS members) testing PSS®E playback model
Next Steps & Charge
NERC SMS to start developing Reliability Guideline “Model Verification using PMUs”
Kicking off this effort on Friday, September 25 at 10AM Eastern
Focus on practitioner-focused look on performing model verification using PMUs
Platform-agnostic description of the purpose, value, and need
Cross-platform examples of PSLF, PSS®E, and any others
Industry (SMS members) testing PSS®E playback model
Providing guidance and user community within SMS for this
Benchmarking PSLF vs. PSSE for same disturbances
Need to “confirm” that these tools match performance
Would like to bring PSLF, PSS®E, and other vendors with this capability to the table to discuss implementation(s)

13. Questions and Answers