Economic Optimization of Storage Integrated Distribution Systems

Year 2024, Volume: 39 Issue: 1, 133 - 143, 28.03.2024

Fatma Avli Fırış , İsrafil Karadöl , Ö. Fatih Keçecioğlu

https://doi.org/10.21605/cukurovaumfd.1459413

Abstract

The aim of this study is to provide economic optimization in the energy exchange to be realized in the day-ahead and intra-day electricity markets by incorporating an energy storage system into an active electric distribution system. The two-stage stochastic programming problem developed for this purpose was formulated with Mixed Integer Linear Programming (MILP) through the General Algebraic Modeling System (GAMS) and solved with the CPLEX solver. Uncertain parameters in modeling were handled with Monte Carlo Simulation and scenario selection was made in this direction. In order to confirm the accuracy and effectiveness of the proposed model, simulation studies were carried out on a selected pilot feeder of the considered distribution system and with real data. The operating costs, which are considered in the simulation studies, are calculated separately and compared in cases where energy storage is used in the grid. According to the results obtained, when energy storage is integrated into the grid, the average daily operation is reduced by more than 600 dollars compared to the case where no storage is available. Thus, it is confirmed that the proposed model can effectively support the economic operation of the electric distribution system.

Keywords

Energy storage, Electricity market, Distribution system, Economic optimization, Operating cost

Depolama Entegreli Dağıtım Sistemlerinin Ekonomik Optimizasyonu

Abstract

Bu çalışmanın amacı, aktif bir elektrik dağıtım sistemine bir enerji depolama sisteminin dâhil edilmesiyle gün öncesi ve gün içi elektrik piyasalarında gerçekleştirilecek enerji alışverişinde ekonomik optimizasyonu sağlamaktır. Bu amaçla geliştirilen iki aşamalı stokastik programlama problem, Genel Cebirsel Modelleme Sistemi (GAMS) aracılığıyla Karma Tamsayılı Doğrusal Programlama (MILP) ile formüle edilmiş ve CPLEX çözücüsü ile çözülmüştür. Modellemedeki belirsiz parametreler, Monte Carlo Simülasyonu ile ele alınarak bu yönde senaryo seçimi gerçekleştirilmiştir. Önerilen modelin doğruluğunu ve etkinliğini teyit etmek için, ele alınan dağıtım sisteminin seçili bir pilot fideri üzerinde ve gerçek verilerle simülasyon çalışmaları gerçekleştirilmiştir. Simülasyon çalışmalarında ele alınan işletme maliyetleri, şebekede enerji depolama kullanılıp kullanılmadığı durumlarda ayrı olarak hesaplanarak karşılaştırılmıştır. Edinilen sonuçlara göre, şebekeye enerji depolama sistemi entegre edildiği durumlarda, depolama sisteminin hiç bulunmadığı durumlara göre günlük ortalama işletme 600 doları aşkın bir düşüş gözlenmiştir. Böylelikle, önerilen modelin elektrik dağıtım sisteminin ekonomik işletimini desteklemeyi etkin bir şekilde gerçekleştirilebileceği de doğrulanmıştır.

Keywords

Enerji depolama, Elektrik piyasası, Dağıtım sistemi, Ekonomik optimizasyon, İşletme maliyeti

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