Abstract Mixed-Integer Nonlinear Programming (MINLP) is the area of optimization that
addresses nonlinear problems with continuous and integer variables. MINLP has proven to …

Natural gas plays an essential role in Germany's energy system, both in the heating and
electricity sectors. In order to achieve climate goals, numerous technologies aim at …

In long-distance parallel pipelines, compressor stations are built together, and connecting
pipes and cut-off valves are arranged between pipelines, which makes it possible for …

Our current energy system is dominated by the use of fossil fuels—coal, oil and gas. These
energy carriers supply over 80 percent of the global primary energy supply [1]. The goal of …

A gas pipeline system is in an almost continual state of transition due to changing gas
demand. A control method is required to keep a gas pipeline operating in an energy-saving …

A decision support system relies on frequent re-solving of similar problem instances. While
the general structure remains the same in corresponding applications, the input parameters …

Compressor stations are the heart of every high-pressure gas transport network. Located at
intersection areas of the network, they are contained in huge complex plants, where they are …

In this paper, we describe an algorithmic framework for the optimal operation of transient gas
transport networks consisting of a hierarchical MILP formulation together with a sequential …

We present a solution framework for general alternating current optimal power flow (AC
OPF) problems that include discrete decisions. The latter occur, for instance, in the context of …

We are concerned with the simulation and optimization of large-scale gas pipeline systems
in an error-controlled environment. The gas flow dynamics is locally approximated by …