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Unit commitment using a hybrid model between Lagrangian relaxation and genetic algorithm in competitive electricity markets
Journal article   Peer reviewed

Unit commitment using a hybrid model between Lagrangian relaxation and genetic algorithm in competitive electricity markets

H.Y. Yamin and S.M. Shahidehpour
Electric power systems research, Vol.68(2), pp.83-92
02/2004
DOI: https://doi.org/10.1016/S0378-7796(03)00147-0

Abstract

Competitive electricity markets Genetic algorithm Lagrangian relaxation Unit commitment
This paper presents a hybrid model between Lagrangian relaxation (LR) and genetic algorithm (GA) to solve the unit commitment problem. GA is used to update the Lagrangian multipliers. The optimal bidding curves as a function of generation schedule are also derived. An IEEE 118-bus system is used to demonstrate the effectiveness of the proposed hybrid model. Simulation results are compared with those obtained from traditional unit commitment.

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