Notation - Scientific Machine Learning (SciML) for Power Systems (PS)

Plain-language meanings, with a power-systems reading and a machine-learning reading of the same word, are in the glossary. This page is the symbol table.

Conventions (teaching draft)¶

Symbol	Meaning
$\delta, \omega$	Rotor angle, speed (classical SMIB)
$H, D$	Inertia, damping (Lab 3 estimands)
$P_m, P_e$	Mechanical / electrical power
$\theta$	Generic parameter vector
$\hat{x}(t)$	Network-predicted state
$\mathcal{L}_{\mathrm{data}}, \mathcal{L}_{\mathrm{phys}}$	Data and physics losses
$\lambda_{\mathrm{phys}}$	Physics loss weight
CCT	Critical clearing time

Rules¶

Prefer per-unit classical SMIB in labs; document the base in the manifest.
Tensor batches in code examples: (batch, time, dim) when tensors appear.
Distinguish physical vs equivalent/effective parameters in prose.
Converter GFM symbols $(M_v, D_v, m_p)$ appear only in electives with an explicit model map.

Equation authoring across MyST and manuscripts is documented for maintainers in the repository guides (portable LaTeX equations).