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Power System Stability Virtual Lab

Transient & Steady-State Enhancement via FACTS Controllers

Lab Controls

FACTS Topology Case:

Sending Voltage V_s (p.u.): 1.00

Receiving Voltage V_r (p.u.): 1.00

Line Reactance X_L (p.u.): 0.50

Rotor/Power Angle δ (°): 30

Compensation Degree / V_inj: 30%

Theory Quick-Ref

Uncompensated: Power transfer is limited strictly by the transmission line's physical reactance. TCSC: Modifies line parameters by reducing net series reactance (

X_{e f f}

decreases), shifting the P-δ curve upward. SSSC: Injects a controllable series voltage magnitude independent of line current, pushing active power limits higher. UPFC: Provides simultaneous independent control of active power, reactive power, and bus voltage via series and shunt converters.

Publication-Grade System Diagram Uncompensated

Governing Equations

Power-Angle Characteristic (P - δ)