A nonlinear bound strengthing method for the steady-state operation optimization model of gas pipeline networks
The gas pipeline network steady-state operation optimization problem plays an important role in improving energy use efficiency and reducing operation cost in many aspects.It is extremely challenging to solve its mixed integer nonlinear program-ming model,because of the complex network structure,large scale and high nonlinearity.In this paper,based on the bound strengthing method of mixed integer linear program-ming,we propose a nonlinear bound strengthing method for the structure of this problem,which can tighten the upper and lower bounds of variables and more approximate to the original mixed integer nonlinear programming model in the linearization method.Nu-merical results show that this method can obtain better feasible solutions and speed up the solution of the optimization problem for the steady-state operation of gas pipeline networks.
gas pipeline network operation optimizationmixed integer nonlinear programmingbound strengthing method