Load-frequency control

Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbin...

In sudden power surges, load-frequency control stabilizes the grid. LFC's goals are to nullify steady-state frequency error after load changes and maintain each area's scheduled tie-line power flow.

Area Control Error, combining tie-line power flow deviations and frequency error, guides adjustments to each turbine governor's reference pow...