Design model for electrical distribution systems considering renewable, conventional and energy storage units

A new model to solve the design problem of integrated electrical distribution systems is presented, considering special modelling for the load, different sources-conventional, renewable and energy storage-as well as connection lines. The resulting formulation is a linear programming problem, which is solved by a standard optimisation package. The advantages of this `distributional approach´ to the design problem of integrated distribution systems can be clearly seen from the results of the case study. The model determines the optimal size and site of all types of power supply units and connection lines. The same model can also be easily extended for the solution of the distribution expansion planning problem, when the planning period is divided into multiple subsequent stages