A practical approach to real time economic dispatch considering unit's prohibited operating zones
- Advanced Control Systems, Inc., Norcross, GA (United States)
This paper develops an efficient and practical approach for determining the feasible optimal solution of the economic dispatch problem when some of the on-line units have prohibited operating zones. When a unit has prohibited operating zones, its operating region will be broken into isolated sub-regions, which results in multiple decision spaces for the economic dispatch problem. For each of the decision spaces, it can be either feasible or infeasible with respect to the system demand. The feasible optimal solution for the dispatch problem can only reside in one of the feasible spaces, and can be found by performing the conventional [lambda]-[delta] iterative search based on the equal-incremental-cost criterion in each of the feasible spaces. However, for a system with a large number of decision spaces, such exhaustive search method would not be acceptable in real time operation due to high computational time requirement. In this paper, a novel approach is proposed. It defines a small and advantageous set of decision spaces, uses an efficient algorithm to determine the most advantageous space and then, utilizes the conventional [lambda]-[delta] iterative method to find the feasible optimal dispatch solution.
- OSTI ID:
- 6617098
- Journal Information:
- IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:4; ISSN 0885-8950; ISSN ITPSEG
- Country of Publication:
- United States
- Language:
- English
Similar Records
A Hopfield network approach to economic dispatch with prohibited operating zones
An algorithm for combined heat and power economic dispatch