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

Table 1

The selection of population size and the highest iteration number.

Case	Number of units
1	6	10	30
2	15	10	100
3	20	10	300
4	40	10	10,000
5	10	10	100
	10	10	100
	10	10	300
6	54	20	500