Improved Firefly Algorithm: A Novel Method for Optimal Operation of Thermal Generating Units

Table 6

Improvement of IFA over FA for Cases 1 and 2.

Case	Compared method	Best cost improvement (%)	Std. dev. improvement (%)
1	FA	0.014	99.81
	PSO	0.009	99.70
	FPA	0.003	98.31
	DE	0.003	99.81
	CSA	0.011	99.23
2	FA	1.037	99.86
	PSO	0.082	99.85
	FPA	0.000	98.83
	DE	0.276	99.87
	CSA	0.025	99.77