DocumentCode :
2913867
Title :
New costs optimization concepts for unit commitment and economic load dispatch in large scale power systems
Author :
Hamdan, Norhamimi ; Ahmed, Musse Mohamud ; Hassan, Ismail
Volume :
C
fYear :
2004
fDate :
21-24 Nov. 2004
Firstpage :
480
Abstract :
Costs optimization in unit commitment (UC) and economic load dispatch (ELD) lead to remarkable saving in the power system operational cost. For this reason, UC and ELD main problems are to minimize the total fuel cost to obtain the maximum total profit and finding fast computation simulation time for the scheduling program. Lagrangian relaxation (LR) has become one of the best solution methods in solving the UC and ELD problems. This approach has been proved more efficient and easier than other methods in solving large-scale problems. When applying LR, the dual function needed to be updated at the higher level. Lately, bundling method (BM) is one of the best solution methods to Lagrangian dual problem. This paper presents combination of LR technique, BM and interior point method for solving the UC and ELD problems. It will also explore the best possible way of updating Lagrangian multipliers with minimum computation time using fast programming techniques.
Keywords :
mathematical programming; power generation dispatch; power generation economics; power generation scheduling; power system interconnection; Lagrangian dual problem; Lagrangian relaxation; bundling method; costs optimization concepts; economic load dispatch; interior point method; large scale power systems; power system operational cost; total fuel cost minimization; unit commitment; Computational modeling; Cost function; Fuel economy; Lagrangian functions; Large-scale systems; Power generation economics; Power system economics; Power system simulation; Power systems; Processor scheduling;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
TENCON 2004. 2004 IEEE Region 10 Conference
Print_ISBN :
0-7803-8560-8
Type :
conf
DOI :
10.1109/TENCON.2004.1414812
Filename :
1414812
Link To Document :
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