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Modules · Modeling studies · Module 040

Model Updates and Verification

PSCAD, PSS/E and TSAT models updated when inverter, turbine or balance-of-plant settings change, verified against the installed settings.

About this module

What this module covers.

When parameter changes and equipment updates are made to inverters, turbines, and/or balance of plant relays, the inverter-based resource (IBR) plant models (PSCAD, PSS/E, TSAT) must be updated to reflect the changes. This module updates the models for the plants you select and coordinates the work.

At a glance

Module: 040
Kind: Modeling studies
Governing body: Any region
Applies to: Operating plants
Typical time: Two to three weeks, all in, including your review

Dashboard capabilities

  • Model Workspace Management: your plant's simulation model files kept in one dashboard workspace, with version tracking
  • PSCAD Simulations
  • PSS/E Simulations
  • TSAT Simulations

Support services

What GridStrong does inside this module.

  • Update the inverters/turbines models in PSCAD, PSS/E, and TSAT (where applicable) to reflect the updated protection and control settings provided by the original equipment manufacturer (OEM). For the PSCAD model as well as PSS/E/TSAT user-defined models (UDM), the OEM shall provide guidance on parameters in the model(s) that correspond to the changes made to the actual equipment.
  • Add the necessary voltage and frequency protections to the balance of plant relays (e.g., medium voltage and high voltage buses) that are missing from the models using standard library models that are available in each software platform, if needed.
  • To ensure accuracy and consistency across models, perform high level model verification:
    • Crosscheck the models (PSCAD, PSS/E, and TSAT) to ensure electrical components match each other including for example the online tap changer, if applicable.
    • Verify that the power plant controller (PPC) and inverter/turbine control parameters in all models (PSCAD, PSS/E, and TSAT) match the updated settings provided by the OEM.
    • If the PSS/E model is a standard library model (generic), the parameters may not match one to one, but any notable discrepancies will be flagged and can be modified after your approval.

Final deliverables

  • Updated PSCAD, PSS/E, and TSAT models.
  • A short synopsis report summarizing the updates made to the models and the model checks performed.
  • Delivered within two to three weeks of receiving and verifying your data, for up to four plants per month.

What we need from you

  • Updated inverter, turbine and PPC settings as approved by the OEM, including voltage and frequency protection and anti-islanding, phase jump and rate of change of frequency (ROCOF) protection, where applicable.
  • Guidance from the OEM on the parameters in the PSCAD and UDM models that correspond to the changes made to the actual equipment, and updated models from OEMs, where applicable.
  • Online tap changer parameters for the main power transformer, if applicable (control range, step size, etc.).
  • Updated balance of plant voltage and frequency relay protection settings that a qualified protection engineer has reviewed and approved.

Assumptions and considerations

How the scope is bounded.

  • This module assumes the OEM-supplied models represent the applicable devices and function properly, and that they interoperate when connected together for the IBR plant model. It includes one round with an OEM to fix errors or issues in the supplied models; further work is additional support at an hourly rate, approved in writing.

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.