An effective non-iterative “ λ-logic based” algorithm for economic dispatch of generators with cubic fuel cost function
This paper presents a very fast and effective non-iterative “ λ-logic based” algorithm for economic dispatch (ED) with cubic cost function of thermal units. Representation of generator fuel cost curves by polynomials in real-time economic dispatch is standard practice in the industry and it shows a...
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| Published in | International journal of electrical power & energy systems Vol. 32; no. 5; pp. 539 - 542 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Oxford
Elsevier Ltd
01.06.2010
Elsevier |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0142-0615 1879-3517 |
| DOI | 10.1016/j.ijepes.2009.11.002 |
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| Abstract | This paper presents a very fast and effective non-iterative “
λ-logic based” algorithm for economic dispatch (ED) with cubic cost function of thermal units. Representation of generator fuel cost curves by polynomials in real-time economic dispatch is standard practice in the industry and it shows a great influence on the accuracy of the economic dispatch solution. As the proposed approach is a direct or non-iterative method, it does not demand any initial guess values for ED of units for given demand (
P
D
). Many of the existing conventional methods fail to impose
p-limits at violating units and find difficult in dealing with cubic cost function that reflect nonlinearity of the actual generator response. The proposed method is very efficient for both small and large size of generating units with cubic fuel cost function in the problem and it remarkably reduces the computation time. The proposed algorithm has been tested successfully on three units, five units and 26 units and results are reported in the paper. |
|---|---|
| AbstractList | This paper presents a very fast and effective non-iterative “
λ-logic based” algorithm for economic dispatch (ED) with cubic cost function of thermal units. Representation of generator fuel cost curves by polynomials in real-time economic dispatch is standard practice in the industry and it shows a great influence on the accuracy of the economic dispatch solution. As the proposed approach is a direct or non-iterative method, it does not demand any initial guess values for ED of units for given demand (
P
D
). Many of the existing conventional methods fail to impose
p-limits at violating units and find difficult in dealing with cubic cost function that reflect nonlinearity of the actual generator response. The proposed method is very efficient for both small and large size of generating units with cubic fuel cost function in the problem and it remarkably reduces the computation time. The proposed algorithm has been tested successfully on three units, five units and 26 units and results are reported in the paper. This paper presents a very fast and effective non-iterative " lambda -logic based" algorithm for economic dispatch (ED) with cubic cost function of thermal units. Representation of generator fuel cost curves by polynomials in real-time economic dispatch is standard practice in the industry and it shows a great influence on the accuracy of the economic dispatch solution. As the proposed approach is a direct or non-iterative method, it does not demand any initial guess values for ED of units for given demand (P sub(D). Many of the existing conventional methods fail to impose p-limits at violating units and find difficult in dealing with cubic cost function that reflect nonlinearity of the actual generator response. The proposed method is very efficient for both small and large size of generating units with cubic fuel cost function in the problem and it remarkably reduces the computation time. The proposed algorithm has been tested successfully on three units, five units and 26 units and results are reported in the paper. |
| Author | Maheswarapu, Sydulu Theerthamalai, Adhinarayanan |
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| Cites_doi | 10.1016/j.ijepes.2009.01.010 10.1016/j.ijepes.2007.08.001 10.1049/ip-gtd:20010022 10.1109/59.141757 10.1016/j.ijepes.2007.06.016 10.1109/59.918303 10.1016/j.ijepes.2007.07.007 10.1109/59.910777 10.1109/39.911360 10.1109/59.627876 |
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| Keywords | Cubic cost function Incremental fuel cost of ith unit ( dF i / dP i ) Economic dispatch (ED) Pre-prepared power demand (PPD) Power demand ( P D ) Dispatching problem Power demand Incremental fuel cost of ith unit (dF Optimization method Iterative method ) dP Algorithm Non linear phenomenon Time distribution Computation time Electrical network Cost function Power demand (P Economic aspect Economic impact Non linear effect |
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λ-logic based” algorithm for economic dispatch (ED) with cubic cost function of thermal units.... This paper presents a very fast and effective non-iterative " lambda -logic based" algorithm for economic dispatch (ED) with cubic cost function of thermal... |
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| SubjectTerms | Algorithms Applied sciences Cost function Cubic cost function Dealing Demand Economic dispatch (ED) Economics Electrical engineering. Electrical power engineering Electrical power engineering Exact sciences and technology Fuels Generators Incremental fuel cost of ith unit ( dF i/ dP i) Marketing Miscellaneous Operation. Load control. Reliability Power demand ( P D) Power networks and lines Pre-prepared power demand (PPD) |
| Title | An effective non-iterative “ λ-logic based” algorithm for economic dispatch of generators with cubic fuel cost function |
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