Optimal Control Of Natural Gas Pipeline Networks

Optimal Control Of Natural Gas Pipeline Networks

by Hans Aalto
     
 

ISBN-10: 3639091116

ISBN-13: 9783639091113

Pub. Date: 10/17/2008

Publisher: VDM Verlag Dr. Mueller e.K.

Real-time optimisation of natural gas pipelines in transient conditions is a challenging problem. Many pipeline systems are, however, only mildly non- linear even in large transients such as compressor station (CS) shutdown or startup. A dynamic, receding horizon optimisation problem is defined, where the free response prediction of the pipeline is obtained from a

Overview

Real-time optimisation of natural gas pipelines in transient conditions is a challenging problem. Many pipeline systems are, however, only mildly non- linear even in large transients such as compressor station (CS) shutdown or startup. A dynamic, receding horizon optimisation problem is defined, where the free response prediction of the pipeline is obtained from a pipeline simulator and the optimal values of the decision variables are obtained solving an approximate Quadratic Programming (QP)problem where the cost function is the energy consumption of the CSs. The problem is extended with discrete decision variables, the shutdown/start-up commands of CSs. A Mixed Logical Dynamical (MLD) system is defined, but the resulting Mixed Integer QP problem is shown to be very high- dimensional. Instead, a sequence of QP problems is defined resulting in an optimisation problem with considerably smaller dimension. The receding horizon optimisation is tested in a simulation environment and comparison with data from a true natural gas pipeline shows 5 to 8 % savings in compressor energy consumption.

Product Details

ISBN-13:
9783639091113
Publisher:
VDM Verlag Dr. Mueller e.K.
Publication date:
10/17/2008
Pages:
188
Product dimensions:
6.00(w) x 9.00(h) x 0.40(d)

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