A Hopfield network approach to economic dispatch with prohibited operating zones

This paper presents a Hopfield model to solve the power system economic dispatch (ED) problem with some of the units having prohibited operating zones. In the proposed method, the authors introduce an equilibrium point, lying in the interior of a prohibited zone, which will divide the prohibited zone into the left and the right prohibited zones referred to this point. In this way, in order to prevent the unit from operating into prohibited zone, they incorporate the novel countermeasures into the proposed Hopfield model. Through case studies of a system with 15 units, they prove the possibility of application of the Hopfield model to a practical ED problem mentioned above. Computer simulations manifest that not only this proposed model itself is much simpler but also its computation results are very close to those of the conventional methods