@article{27886, keywords = {Electrical network, Heating and cooling network, Mixed-21 integer linear program, Multi-energy microgrid design, Power flow}, author = {Salman Mashayekh and Michael Stadler and Gonçalo Cardoso and Miguel Heleno}, title = {A Mixed Integer Linear Programming Approach for Optimal DER Portfolio, Sizing, and Placement in Multi-Energy Microgrids}, abstract = {
Optimal microgrid design is a challenging problem, especially for multi-energy microgrids with electricity, heating, and cooling loads as well as sources, and multiple energy carriers. To address this problem, this paper presents an optimization model formulated as a mixed-integer linear program, which determines the optimal technology portfolio, the optimal technology placement, and the associated optimal dispatch, in a microgrid with multiple energy types. The developed model uses a multi-node modeling approach (as opposed to an aggregate single-node approach) that includes electrical power flow and heat flow equations, and hence, offers the ability to perform optimal siting considering physical and operational constraints of electrical and heating/cooling networks. The new model is founded on the existing optimization model DER-CAM, a state-of-the-art decision support tool for microgrid planning and design. The results of a case study that compares single-node vs. multi-node optimal design for an example microgrid show the importance of multi-node modeling. It has been shown that single-node approaches are not only incapable of optimal DER placement, but may also result in sub-optimal DER portfolio, as well as underestimation of investment costs.
}, year = {2017}, journal = {Applied Energy}, volume = {187}, pages = {154-168}, month = {02/2017}, publisher = {To be published in Applied Energy}, doi = {10.1016/j.apenergy.2016.11.020}, }