An Improved Particle Swarm Optimization with Biogeography-Based Learning Strategy for Economic Dispatch Problems

Table 6

Optimal generations and cost obtained by the BLPSO for test system 3 (20-unit system,  MW).

Unit			Generation
1	150	600	512.2358
2	50	200	169.7731
3	50	200	126.4272
4	50	200	102.6131
5	50	160	113.9049
6	20	100	73.6208
7	25	125	115.506
8	50	150	116.631
9	50	200	100.2842
10	30	150	105.5532
11	100	300	150.2329
12	150	500	293.3209
13	40	160	118.8701
14	20	130	30.6567
15	25	185	115.3421
16	20	80	36.2973
17	30	85	67.0567
18	30	120	87.9775
19	40	120	101.2398
20	30	100	54.4584
Cost ($/hr)	62456.58
Transmission loss (MW)	92.0046