Daily economical operation planning for a multi-area system with pump storage plant

A new approach based on mixed-integer programming is proposed for daily economical operation planning problem for a multi-area system with hydro-thermal plants and a pump storage plant. All generator units can be coordinately and economically operated in order to gain the most economical effects of the whole power network. The calculation results also show that the approach proposed can successfully make use of pump storage plant to shift the peak of the load curve so that the operation condition of the whole power system can be greatly improved.