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

Table 2

Comparison of results with different methods for test system 1.

Method	Total generation cost ($)		Average CPU time (min)			Different trial
	Minimum	Average	Actual	CPU	Equalized
DE	1035479	1038680	0.21	2.2 GHz	0.21	40
SQP [29]	1051163	—	1.19	850 MHz	0.45	20
EP [29]	1048638	—	42.49	850 MHz	16.41	20
BCO-SQP [30]	1032200	—	2.68	3.0 GHz	3.65	—
EP-SQP [47]	1031746	1035748	20.51	850 MHz	7.92	20
MHEP-SQP [47]	1028924	1031179	21.23	—	—	30
MDE [18]	1031612	1033630	5.30	2.0 GHz	4.82	30
HDE [36]	1031077	—	—	2.4 GHz	—	—
DGPSO [48]	1028835	1033630	15.39	750 GHz	5.25	30
CE [45]	1022701	1024024	0.5237	1.5 GHz	0.36	30
ECE [45]	1022271	1023334	0.5271	1.5 GHz	0.36	30
AIS [49]	1021980	1023156	19.01	3.2 GHz	27.65	30
AHDE [40]	1020082	1022474	1.10	2.4 GHz	1.20	10
HHS [50]	1019091	—	12.23	2.0 GHz	11.11	25
ICPSO [51]	1019072	1020027	0.467	1.8 GHz	0.38	30
CSAPSO [52]	1018767	1019874	0.467	1.8 GHz	0.38	40
EAPSO [53]	1018510	1018701	0.5	3.0 GHz	0.68	40
CSADHS [23]	1018681	1018718	2.72	1.6 GHz	1.98	100
EBSO [54]	1017147	1017526	0.205	1.8  GHz	0.17	40
IDEBDSS	1016873	1017124	0.33	2.2 GHz	0.33	40