An Improved Differential Evolution Method Based on the Dynamic Search Strategy to Solve Dynamic Economic Dispatch Problem with Valve-Point Effects

Table 4

Comparison of results with different methods for test system 2.

Method	Total generation cost ($)		Average CPU time (min)			Different trial
	Minimum	Average	Actual	CPU	Equalized
DE	1053278	1058118	0.23	2.2 GHz	0.23	40
EP [47]	1054685	1057323	47.23	850 MHz	18.25	20
EP-SQP [47]	1052668	1053771	27.53	850 MHz	10.64	20
MHEP-SQP [47]	1050054	1052394	24.33	—	—	30
AIS [49]	1045715	1047050	23.22	3.2 GHz	33.77	30
CSAPSO [52]	1038251	1039543	—	1.8 GHz	—	40
EBSO [54]	1038915	1039188	0.22	1.8 GHz	0.27	40
EAPSO [53]	1037898	1038109	2.3	3 GHz	3.13	40
CSADHS [23]	1035199	1035259	2.8	1.6 GHz	2.03	100
IDEBDSS	1035061	1035104	0.35	2.2 GHz	0.35	40