Power system planning in distribution networks today and in the future with smart grids

Abstract

This paper is about electric power system planning in Norwegian medium and low voltage distribution networks. The paper describes some of the challenges regarding electric power system planning today. The biggest challenge is the lack of control of the operating conditions in these grids. It is comparable to driving in the dark. With the introduction of ICT into the power system, the light will come on and new possibilities will occur. But the distribution system operators will also face new threats related to data security. The electric power system planning in the future will follow the same methodology as today, but many new factors must be taken into consideration.

Optimal planning of distribution grids considering active power curtailment and reactive power control

“…For example, [3], [4] provide overviews on optimal placement of Distributed Generators (DGs), under different objectives and optimization techniques. Recent publications address the need to include also active distribution grid tools into the planning stage [5], [6]. In [5], the authors analyze classic and new smart grid planning techniques, with the use of controllable loads, storage and electric vehicles, while [6] discusses challenges and possibilities of the future planning problem.…”

“…However, neither of [4]- [6] provides a systematic method to assist Distribution System Operators (DSOs) to decide between the use of active applications or traditional network expansion techniques. Reference [2] comprises a comprehensive analysis for the transition towards active distribution grids.…”

Planning process for distribution grids based on flexibly generated time series considering RES, DSM and storages

“…Nevertheless, some approaches, as [14, 15], utilise at least measurements of installed smart meters to derive loading situations. Others like [16] analyse the positioning of storage systems on the basis of profiles.…”