An innovative algorithm based on a set of modified coordination equations has been developed which is claimed to be the fastest for the solution of the economic load dispatch (ELD) problem. Penalty factors involved in modified coordination equations are realised with little computational effort from the knowledge of a base case fast decoupled load flow (FDLF) solution using a perturbation technique. A pioneering attempt has been made to account for line flow constraints in an innovative manner in the proposed ELD model. The ELD algorithm is tested on IEEE 14 and IEEE 30 bus test systems and the results are compared with those obtained by a classical technique based on exact coordination equations. Analysis reveals that the proposed ELD algorithm based on modified coordination equations is much faster than the one based on the classical technique using exact coordination equations, particularly for large systems, and hence can be justified to be the fastest amongst other algorithms based on mathematical programming techniques for ELD solution.
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