Application of Firefly Algorithm in Voltage Stability Environment Incorporating Circuit Element Model of SSSC with Variable Susceptance Model of SVC

Table 6

Real power loss values comparison (in MW).

(a) For 14-bus system

Conditions	Preinsertion of FACTS (initial)	Postinsertion of FACTS
		FA	SFLA	DE	PSO
Case 1	13.401	11.014	11.409	11.693	12.106
Case 2	35.042	28.018	28.991	28.875	29.019
Case 3	24.183	18.046	19.255	19.389	19.771

(b) For 30-bus system

Conditions	Preinsertion of FACTS (initial)	Postinsertion of FACTS
		FA	SFLA	DE	PSO
Case 1	17.514	13.467	14.852	16.157	16.504
Case 2	46.900	40.990	45.797	41.258	43.272
Case 3	32.569	22.801	29.272	23.234	25.561