Elaborative Modeling Techniques

Power Flow $\rightarrow$ Phasor Dynamics

This document is for development purposes only at this time.

The dialogues shown below are some of the options PowerWorld exposes when transferring a power flow state to a phasor dynamics model.

Load & Shunt Models

Near nominal voltage magnitude and frequency are often modeled as constant impedances at the terminating bus.

Transformer Models

Information on phase and tap controls

QV Limits

To be documented.

Phasor Dynamics $\rightarrow$ EMT

Effective EMT modeling requires some a priori engineering judgment based on the temporal & spatial scale of the problem.

Machines & Controls

To be documented.

Line Parameters

To be documented.

Conductors (Internal Effects)

• Internal Impedances
• Frequency Dependence

Phase Geometry (External Effects)

To be documented.

• Unsymmetrical & Symmetrical Components
• Frequency Dependence

Traveling Waves

• The delay in TEM propagation can be approximated algebraically for short transmission lines or at low frequencies.
• Relationship to integration methods