An improved Pattern Search based algorithm to solve the Dynamic Economic Dispatch problem with valve-point effect

• Published in: Energy conversion and management Vol. 51; no. 10; pp. 2062 - 2067
• Main Authors: Alsumait, J.S., Qasem, M., Sykulski, J.K., Al-Othman, A.K.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.10.2010; Elsevier
• Subjects: Air pollution caused by fuel industries; Applied sciences; Dynamic Economic and Emission Dispatch; Dynamic Economic Dispatch; Economic data; Electric energy; Energy; Energy economics; Energy. Thermal use of fuels; Exact sciences and technology; General, economic and professional studies; General. Regulations. Norms. Economy; Methodology. Modelling; Pattern Search; Valve-point effect; Dynamic Economic and Emission Dispatch; Dynamic Economic Dispatch; Valve-point effect; Pattern Search; Cost minimization; Methodology; Pollution control; Economic optimization; Pollutant emission; Search algorithm; Constrained optimization; Optimal strategy; Fuel; Electric power production
• ISSN: 0196-8904; 1879-2227
• DOI: 10.1016/j.enconman.2010.02.039

In this paper, an improved algorithm based on Pattern Search method (PS) to solve the Dynamic Economic Dispatch is proposed. The algorithm maintains the essential unit ramp rate constraint, along with all other necessary constraints, not only for the time horizon of operation (24 h), but it preserves these constraints through the transaction period to the next time horizon (next day) in order to avoid the discontinuity of the power system operation. The Dynamic Economic and Emission Dispatch problem (DEED) is also considered. The load balance constraints, operating limits, valve-point loading and network losses are included in the models of both DED and DEED. The numerical results clarify the significance of the improved algorithm and verify its performance.