Cost functions for generation dispatching in microgrids for non-interconnected zones in Colombia

Generation dispatching is a challenge in islanded microgrids due to the operational and economic restrictions in isolated zones. Furthermore, the impact of usual operational network changes in topology, load demand, and generation availability may become significant considering the grid size. This r...

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Bibliographic Details
Authors: Hoyos Velandia, Cristian, Ramírez Hurtado, Lina, Quintero Restrepo, Jaime, Moreno Chuquen, Ricardo, González Longatt, Francisco
Format: article
Status:Published version
Publication Date:2022
Country:Colombia
Institution:Universidad Autónoma de Occidente
Repository:RED: Repositorio Educativo Digital UAO
Language:English
OAI Identifier:oai:red.uao.edu.co:10614/14703
Online Access:https://hdl.handle.net/10614/14703
https://red.uao.edu.co/
Access Level:Open access
Keyword:Almacenamiento de energía
Energy storage
Batteries
Cost functions
DER
Microgrids
Renewables
Storage
Description
Summary:Generation dispatching is a challenge in islanded microgrids due to the operational and economic restrictions in isolated zones. Furthermore, the impact of usual operational network changes in topology, load demand, and generation availability may become significant considering the grid size. This research paper presents a detailed multiple cost function modeling methodology of an optimal power flow algorithm applied to a noninterconnected zone in Colombia. The optimal power flow (OPF) formulation includes cost functions related to renewable resources as presented in the isolated zone and a complete model of the charging and discharging of batteries. Additionally, the flexibility of the proposal is tested using three different network topologies with a characteristic daily load curve from the zone. The main contribution of this paper lies in the implementation of an optimal power flow including cost functions of renewable sources for isolated microgrids. A test case for a non-interconnected zone in Colombia is performed for various operation cases.