← IBR Stability, Model Reduction, and Validation

IBR Stability, Model Reduction, and Validation

Equilibrium and Linearization

C2-01 · Module outline

Construct and check local state-space models around each equilibrium.

Learning objectives

  • Check an equilibrium before computing eigenvalues.
  • Compare independent Jacobian calculations.

Concept outline

  1. Operating-point and input matching
  2. A/B/C/D matrices and algebraic closure
  3. Complex-step and finite-difference checks

Experiment direction · Planned

Simulation and code experiment

Compare nonlinear and linear responses for a small input step.

Model explanations, parameter settings, runnable code, and result interpretation will be developed here.

Practice and discussion

Explain a discrepancy caused by inconsistent initialization.

Worked solutions and feedback will accompany the full lesson.

Material preparation

Related notes, models, or notebooks are available and need adaptation into a web lesson and experiment.

Adapt the existing material into a lesson, a reproducible experiment, and worked practice.

All modules in this course
  1. Equilibrium and Linearization
  2. Modes, Participation, and Residues
  3. Frequency and Time-Domain Validation
  4. Time Scales, QSS, and Singular Perturbation
  5. Conventional Reduction Baselines
  6. Stability Counterexamples and Validity Boundaries
  7. Cross-Tool Evidence and Validation Levels
  8. Model Selection and Feedback-Path Diagnostics