The paper presents a modified harmony search algorithm (MHS), useful for solving the economic dispatch (ED) problem assuming a non-linear cost function and various technical restrictions. The ED problem is a very important optimization problem for power systems, and technical restrictions must be considered: prohibited operating zones and ramp rate limits of power generating units, as well as transmission line losses. The MHS algorithm is based on harmony search (HS) algorithm, but a new harmony is obtained by inserting some features from artificial bee colony algorithm. The efficiency of MHS algorithm is tested against two systems consisting of 6 and 38 thermal power generating units. Results are compared with those obtained by applying other optimization techniques.
economic dispatch; harmony search; transmission losses.
Dinu Călin SECUI, Gabriel BENDEA, Simona DZIŢAC, Codruţa BENDEA, Cristina HORA, "A Modified Harmony Search Algorithm for the Economic Dispatch Problem", Studies in Informatics and Control, ISSN 1220-1766, vol. 23(2), pp. 143-152, 2014. https://doi.org/10.24846/v23i2y201402
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