A mixed integer linear programming model for the energy management problem of microgrids

• Published in: Electric power systems research Vol. 122; pp. 19 - 28
• Main Authors: Tenfen, Daniel, Finardi, Erlon Cristian
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.05.2015
• Subjects: Controllable load demand; Energy management; Fuel cells; Microgrids; Microturbines; Mixed linear integer programming; MILP; MT; Microgrids; RLD; Mixed linear integer programming; DER; Fuel cells; Controllable load demand; CLD; MG; FC; Energy management; SOFC; Microturbines
• ISSN: 0378-7796; 1873-2046
• DOI: 10.1016/j.epsr.2014.12.019

•New mathematical model for microturbines including ramps and ambient temperature.•New mathematical model for SOFC including pre heating and cycling operation cost.•New equations to curtailable load demands.•New equations for the energy management problem of microgrids. This paper presents a mathematical model for the energy management (EM) problem of a microgrid (MG) by means of a mixed integer linear programming approach. In the EM problem, the objective is to determine a generation and a controllable load demand policy that minimises, over a planning horizon, the operation cost subject to economical and technical constraints. We propose a detail modelling for microturbines (MTs) and fuel cells (FCs), where the constraints associated with such factors as the ramps, minimum up and downtime, and generation limits, represent various peculiarities that have not been adequately considered in literature. The proposed model also considers a detailed representation of critical, reschedulable and curtailable loads, which are important aspects in the MG concept. To analyse the proposed modelling, a MG is used along with a MT, a FC, a battery bank, wind and photovoltaic generators connected to the main grid. The results indicate that the model is adequate for the MG EM.