A novel approach to disco planning in electricity markets: Mathematical model

A novel approach to address the disco planning issues in a competitive electricity market environment is presented in this paper. Since there exists a variety of electricity markets and associated products and services (i.e. energy markets, ancillary service markets, etc.) which work in different time-frames, the mathematical model presented here uses the AC power flow, and the planning problem is a dynamic model, formulated to tackle all these issues simultaneously. The effects of DG injections on the distribution network, both in the short-term operations (impact on losses) and in long-term planning (impact on feeder capacity) is combined together and mathematically formulated within a comprehensive objective function for planning. Novel goodness factors accounting for DG contribution to system loss reductions and deferment in feeder capacity upgrades are formulated as monetary values.

I. Nomenclature

Set of all system buses