Modules · Modeling studies · Module 069
PJM EMT Model Quality Tests
The PJM electromagnetic transient model-quality battery, run once and reusable across PJM transmission owner zones.
About this module
What this module covers.
PJM requires electromagnetic transient (EMT) model quality testing for inverter-based resources, per the PJM EMT Model Development Guidelines (Rev 0) Section 4. This module runs the PJM EMT model-quality battery to validate your dynamic models against PJM's performance criteria. The suite is reusable across PJM transmission-owner zones.
Module: 069
Kind: Modeling studies
Governing body: PJM
Applies to: Before and after commercial operation
Typical time: Two to three weeks, all in, including your review
Dashboard capabilities
- Model quality test (MQT) workspace in the GridStrong Dashboard
- Model Workspace Management across PSCAD and PSS/E
- PSCAD and PSS/E Simulations
- Plant Evidence Locker for source documentation
- Automated MQT report generation
Support services
What GridStrong does inside this module.
- Perform the full PJM EMT model-quality battery (18 tests; full list below).
- Benchmark EMT (PSCAD) results against positive-sequence (PSS/E) where applicable.
- Coordinate with original equipment manufacturers (OEMs) on modeling deficiencies identified during testing.
- Prepare the MQT report for your submission to PJM.
Tests: Steps / steady state
- EMT flat start (15 s)
- Active power reference step down
- Frequency step up (+0.3 Hz) and step down with headroom (-0.3 Hz)
- Voltage step up / down (+/-0.03 pu)
Tests: Faults
- Three-phase-to-ground fault (bolted, 9 cycles)
- Single line-to-ground fault (bolted, 9 cycles)
- Line-to-line fault (bolted, 9 cycles)
Tests: Ride-through (PRC-024 profiles)
- Low- and high-voltage ride-through (LVRT / HVRT) profiles
- Overvoltage ride-through (1.20 pu)
- High- and low-frequency ride-through (HFRT / LFRT) profiles
Tests: Grid strength & disturbance
- System strength test at short circuit ratios (SCR) 5, 3, 1.5 and lower, per the guideline
- Phase angle change +/-25 deg
- High rate of change of frequency (ROCOF) (+/-5 Hz/s sequence)
Final deliverables
- PJM EMT MQT report including results from all required tests.
- Updated PSCAD and PSS/E simulation models where applicable (charged under the related modules).
What we need from you
- Latest PSCAD and PSS/E simulation models including collector system, main power transformer, power plant controller, and all necessary control and protection.
- Single-line diagram of the plant.
- PRC-024 voltage and frequency ride-through settings.
- User manuals and OEM documentation.
Assumptions and considerations
How the scope is bounded.
- Based on PJM EMT Model Development Guidelines Rev 0.
- You supply all required models and site documentation.
Other modules
Every module runs on the same record.
Run this module on one site.
Tell us the plant and the deadline. An engineer confirms the inputs, the schedule and what the Dashboard needs from you.