Manufacturing systems, power networks, transportation systems, road traffic networks, process
plants, and other large-scale networked systems are often composed of multiple subsystems,
with many embedded sensors and actuators, and characterised by complex dynamics and mutual
influences such that local control decisions have long-range effects throughout the system. This
results in a huge number of problems that must be tackled for the design of an overall control
system in order to achieve a safe, efficient, and robust operation. Otherwise, serious disasters
and malfunctions could occur (such as the breakdown of the power grid in North America and
in Italy in 2003).
To deal with these problems and to cope with the complexity of the control task, we propose
to use a hierarchical control set-up in which the control tasks are distributed over time and
space. In such a set-up, systems of supervisory and strategic functionality reside at higher
levels, while at lower levels the single units, or local agents, must guarantee specific operational
objectives. At any level, the local agents must negotiate their outcomes and requirements with
lower and higher levels. We will develop methods for designing controllers for complex largescale
systems based on such a hierarchical control framework. In particular, we propose to use
Model Predictive Control (MPC), which has already proven its usefulness for control of smallscale
systems, but which cannot yet be applied to large-scale systems due to computational,
coordination, and communication problems. We will solve these issues and develop new MPC
methods for large-scale networked systems, both under normal operation conditions, and in the
presence of uncertainty and disturbances.
We will perform both fundamental research and more application-oriented research in which
the methods developed in the project are applied to case studies and benchmarks provided by
the partners from industry. |