Power System Stability

Interactive Swing Equation Simulator

GRID STABLE

Live Telemetry

Telemetry Explained

Rotor Angle (δ)

Angle between the rotor and grid magnetic fields. Defaults to 30° because the generator is supplying 0.5 pu power (sin(30°) = 0.5). Exceeding 90° usually results in a loss of synchronism!

Electrical Power (Pe)

Actual power pushed into the grid. Defaults to 0.5 pu to perfectly balance the mechanical turbine input (Pm), achieving Steady State equilibrium.

Speed Dev. (Δω)

Deviation from synchronous speed (50/60Hz). Defaults to 0 rad/s because generation matches load demand (Pm = Pe), resulting in zero rotor acceleration.

Rotor Angle (δ) 0.0°

Electrical Power (Pe) 0.5 pu

Speed Dev. (Δω) 0.0 rad/s

How to Learn

Steady State: Slowly drag Mechanical Power up. Notice the Rotor Angle increase. If Power exceeds the transfer limit (1.0 pu), it crashes.

Transient: Cause a fault (Lightning). The system loses transfer capacity temporarily. The rotor speeds up. If cleared quickly, it oscillates and settles. If cleared too late, it loses synchronism.

Mechanical Power (Pm) 0.50 pu

Simulates consumer load demand on the generator.

Disturbances (Transient)

SYSTEM COLLAPSE

Power System Stability

Live Telemetry

Telemetry Explained

How to Learn