Modules · Modeling studies · Module 064
ERCOT SSR Screening
A subsynchronous resonance vulnerability verdict and mitigation tier from the point of interconnection impedance scan.
About this module
What this module covers.
Automates the ERCOT Nodal Protocols Section 3.22.2 subsynchronous resonance (SSR) vulnerability study that the interconnecting Transmission Service Provider (TSP) would otherwise perform by hand. From your uploaded positive-sequence point of interconnection (POI) impedance scan Z(f), the workflow evaluates the induction generator effect and subsynchronous control interaction (IGE/SSCI) frequency-scan criterion for inverter-based resources and returns a deterministic, citation-backed vulnerability verdict plus the applicable mitigation tier.
Module: 064
Kind: Modeling studies
Governing body: ERCOT
Applies to: Before commercial operation
Typical time: Two to three weeks, all in, including your review
Dashboard capabilities
- Automated Compliance Workflow for ERCOT SSR Screening (Nodal Protocols Section 3.22.2)
- IGE/SSCI frequency-scan criterion from an uploaded POI impedance scan Z(f)
- Deterministic vulnerability verdict with mitigation tier
Support services
What GridStrong does inside this module.
- Evaluate the Nodal Protocols Section 3.22.2 IGE/SSCI frequency-scan criterion on your uploaded positive-sequence POI impedance scan Z(f).
- Return a cited vulnerability verdict and the applicable mitigation tier.
Final deliverables
- SSR screening report with the vulnerability verdict, the mitigation tier and their citations.
What we need from you
- Positive-sequence impedance scan Z(f) at the point of interconnection.
Assumptions and considerations
How the scope is bounded.
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.