Combinational load shedding using load frequency control and voltage stability indicator

This paper proposes a load shedding program for evaluating and distributing the minimum power to be curtailed required bring frequency voltage, after system was subjected heavy disturbance, allowable range each bus. The quantity of estimated restore system's frequency, taking into account turbine governor's primary control generators' reserve secondary control. Calculation review bus's voltage stability indicator (Li) prioritize at these locations. lower on bus, less can occur, vice versa. values are still within ranges with this approach, significant amount prevented, resulting in reduction customer service interruption. proposed method's efficacy demonstrated when it checked against IEEE 30 bus 6 generators standard simulated MATLAB environment minimize shed by around 20% conventional schemes.