@article{SirventKanelakisGeissleretal.2017, author = {Sirvent, Mathias and Kanelakis, Nikolaos and Geißler, Bj{\"o}rn and Biskas, Pandelis}, title = {A Linearized Model for the Optimization of the Coupled Electricity and Natural Gas System}, series = {Journal of Modern Power Systems and Clean Energy}, volume = {5}, journal = {Journal of Modern Power Systems and Clean Energy}, number = {3}, doi = {10.1007/s40565-017-0275-2}, pages = {364 -- 374}, year = {2017}, abstract = {In the following paper a combined optimization of a coupled electricity and gas system is presented. For the electricity network a unit commitment problem with optimization of energy and reserves under a power pool, considering all system operational and unit technical constraints is solved. The gas network subproblem is a medium-scale mixed-integer nonconvex and nonlinear programming problem. The coupling constraints between the two networks are nonlinear as well. The resulting mixed-integer nonlinear program is linearized with the extended incremental method and an outer approximation technique. The resulting model is evaluated using the Greek power and gas system comprising fourteen gas-fired units under four different approximation accuracy levels. The results indicate the efficiency of the proposed MIP model and the interplay between computational requirements and accuracy.}, language = {en} }