An innovative algorithm based on a set of modified co-ordination equations has been developed, which is claimed to be the fastest algorithm for the solution of the economic load dispatch (ELD) problem. Penalty factors involved in modified co-ordination equations are realised very elegantly with little computational effort from the knowledge of a base case fast decoupled load flow (FDLF) solution using a perturbation technique. An 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 with a classical technique based on exact coordination equations and with some rigorous mathematical programming techniques. Analysis reveals that the proposed ELD algorithm based on modified co-ordination equations is much faster than the one based on classical technique using exact co-ordination equations.
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