JavaScript is disabled on your browser. Please enable JavaScript to use all the features on this page.

Highlights

A multi-objective stochastic model is proposed for network reconfiguration and DG allocation.

The DG allocation and network reconfiguration problems are studied from economic viewpoint.

Scenario-based modeling approach is utilized to handle the uncertainties.

The uncertainties of wind power, demand and energy price are considered.

The interaction between DG allocation and network reconfiguration problems is studied.

Abstract

Optimal distribution system reconfiguration (DSR) and distribution generation (DG) allocation are viable solutions for improvement of technical and economic aspects of distribution systems. This paper proposes a stochastic multi-objective DSR (SMO-DSR) model, aims to maximize the DG owner’s profit and minimizes the distribution company’s (DisCo’s) costs. The uncertainties of wind power generation, electricity price, and demand are handled via scenario based approach. The proposed SMO-DSR model is solved via ε-constraint method and the best compromise solution is selected by fuzzy satisfying criterion. The model is a mixed integer non-linear programing (MINLP) problem which is implemented on IEEE 33-bus distribution system in General Algebraic Modeling System (GAMS) environment. To show the effectiveness of the proposed SMO-DSR approach, it is studied in different cases. A sensitivity analysis is also performed to show the effect of contract price of wind energy on the objectives of DisCo and DG owner. The obtained results substantiate the interaction between the DSR and DG allocation problems. Also, it is shown that the contract price of wind energy considerably influences both DG owner and DisCo schedules. Besides, when a compromise is made between the DG owner’s profit and DisCo’s cost, the power losses of the network is reduced.

Keywords

Distributed generation (DG)

Distribution system reconfiguration (DSR)

Multi-objective stochastic optimization

Uncertainty

Pareto optimal solutions

Choose an option to locate/access this article:

Check if you have access through your login credentials or your institution.

© 2018 Elsevier Ltd. All rights reserved.