A novel direct search approach for combined heat and power dispatch

► An improved direct search method for the CHD dispatch problem is proposed. ► A penalty function technique is developed to dispatch heat and power concurrently. ► Solution improvement by using a successive refinement search technique. ► Better results in terms of objective values are obtained. A no...

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Bibliographic Details
Published in:International journal of electrical power & energy systems 2012-12, Vol.43 (1), p.766-773
Main Authors: Chen, Chun-Lung, Lee, Tsung-Ying, Jan, Rong-Mow, Lu, Chia-Liang
Format: Article
Language:English
Subjects:
Applied sciences
CHP
Cogeneration
Combined heat and power
Combined heat and power dispatch
Combined power plants and total energy systems
Direct search method
Distributed memory
Economic dispatch
Electric power plants
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Mathematical models
Miscellaneous
Non classical power plants
Operation. Load control. Reliability
Optimization
Power networks and lines
Searching
Strategy
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Summary:► An improved direct search method for the CHD dispatch problem is proposed. ► A penalty function technique is developed to dispatch heat and power concurrently. ► Solution improvement by using a successive refinement search technique. ► Better results in terms of objective values are obtained. A novel approach based on the direct search method (DSM) is proposed for the solution of combined heat and power (CHP) dispatch problem. To deal with the mutual dependency of multiple-demand and heat–power capacity of cogeneration units, the penalty functions should be considered in DSM to enforce the corresponding violated constraints from the infeasible region into the feasible region. Many nonlinear characteristics of the generator can be handled properly in the direct search procedure. To increase the possibility of exploring the search space where the global optimal solution exists, another effective strategy based on a successive refinement search technique is also proposed to guarantee a possibly complete examination of the solution space. Numerical experiments are included to demonstrate the proposed direct search approach can obtain a higher quality solution than many existing techniques.
ISSN:0142-0615
1879-3517
DOI:10.1016/j.ijepes.2012.05.033