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2 2019

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Hybrid algorithm combining Lambda iteration and bee colony optimization to solve an economic dispatch problem with prohibited operating zones

Aurasopon Apinan, Takeang Chiraphon

Przegląd Elektrotechniczny

2019

R. 95, nr 10

12--17

This research aimed to solve an economic dispatch problem with prohibited operating zones using a hybrid method combining lambda iteration and bee colony optimization with smooth cost function characteristics. The constraints of economic dispatch consisted of load demand, transmission loss, ramp rate limits and prohibited operating zones. To verify the performance of the proposed algorithm, it was operated using a simulation of the MATLAB program and tested with two case studies with certain operating zones involving either three or six generators. The study found that the proposed method could provide better solutions than the others that were tested in terms of a quality solution, and computational and convergence efficiently. It can be concluded that the proposed method was effective in solving the issue of economic dispatch.

W aertykule przedstawiono algorytmy umożliwiające optymalizację ekonomicznego rozsyłu energii. Uwzględniono wzbronione zkakresy mocy wyjściowej.

An improved local search involving bee colony optimization using lambda iteration combined with a golden section search method to solve an economic dispatch problem

Aurasopon Apinan, Khamsen Wanchai

Przegląd Elektrotechniczny

2019

R. 95, nr 1

202--208

This paper presents an improved local search method using bee colony optimization (ILS-BCO) to solve an economic dispatch (ED) problem with smooth cost function characteristic. The proposed ILS-BCO algorithm is an integration of lambda iteration and bee colony optimization (CLI-BCO) combined with golden section search and bee colony optimization (CGS-BCO). To show its effectiveness, the ILS-BCO was applied to test two systems consisting of either 6 or 15 power generating units. Results confirm that the proposed ILS-BCO approach is capable of obtaining rapid convergence and a high quality solution efficiently.

W artykule zaproponowano metodę rozwoiązywania problemu ekonomicznego rozsyłu energii z uwzględnieniem kosztów. Wykorzystano metodę optymalizacji opartą na algorytmach rojowych. Metodę przetestowano na dwóch systemach złożonych z 6 lub 15 jednostek generatorów.