This paper presents a new ED (economic dispatch) algorithm for thermal unit generation scheduling in a power system, which guarantees the near optimal solution without reducing calculation speed. It is well known that the accuracy of the fuel cost function has a great influence on the accuracy of the ED solution. However, a roughly approximated quadratic function of the generation cost has generally been used due to the difficulties in dealing with a cost function reflecting the nonlinearity of the actual generator response. In this paper, a new method is proposed to improve both the accuracy and the calculation speed of the ED. By using the inverse incremental cost functions, the ED can be transformed into a simple optimization problem associated with an n-th order polynomial equation. The proposed method reduces the computation time with adaptability to any higher order generation cost functions. The proposed method is tested with sample systems, which shows that the proposed algorithm yields more accurate and economical results with high computation time.
|Title of host publication||2000 IEEE Power Engineering Society, Conference Proceedings|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||6|
|ISBN (Electronic)||0780359356, 9780780359352|
|Publication status||Published - 2000|
|Event||IEEE Power Engineering Society Winter Meeting, 2000 - Singapore, Singapore|
Duration: 2000 Jan 23 → 2000 Jan 27
|Name||2000 IEEE Power Engineering Society, Conference Proceedings|
|Other||IEEE Power Engineering Society Winter Meeting, 2000|
|Period||00/1/23 → 00/1/27|
Bibliographical notePublisher Copyright:
© 2000 IEEE.
All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering