Coordinated Planning and Scheduling of Electricity and Natural Gas Systems

In this paper we propose a model for coordinated planning of power and natural gas systems, as a part of electricity supply chain. This model takes into account costs and constraints of both systems, and with hiring simplifications and linearization methods transforms initially nonlinear formulation to a mixed integer linear programming (MILP) problem. Natural gas would be assumed steady state, and the nonlinear Weymouth equation is linearized using a piecewise linear function. The assumed electricity network model, as a linearization of AC power flow, would be DC power flow. As it will be shown in the paper, these assumptions will combine computational simplicity with an acceptable level of accuracy, this quality makes this model applicable to, and suitable for large real size problems of this kind.