Plenary Lectures

Plenary Lectures

Serge Le Gonidec T1: 9:25 - 10:10, room: T128
Title: An overview of connections between scientific automatic topics and their applications in the propulsive systems
Name: Serge Le Gonidec (biography)
Affiliation: Airbus Safran Launchers, France

Abstract: In the space propulsion applications the automatic topics have a signifiant contribution. Indeed, from development to post flight analysis, through the overall life cycle, the automatic tools allow or contribute (or could contribute in the future) to: Reduce the development and production cost, improve the trust accuracy and the reliability, make the engine control management more robust, improve the capability of flight mission agility, facilitate the post flight analysis, ....
Of course all the ACD technologies are not currently in use or should not be applied even in future space context ! So a small "travel" in the space propulsion world from past studies through current applications to potential needs should illustrate the primary importance of the ACD technologies.

van Wingerden T2: 13:30 - 14:15, room: T128
Title: Wind Energy Control Research
Name: Jan-Willem Van Wingerden (biography)
Affiliation: TU Delft / DCSC, Room 34 C-2-320 Mekelweg 2, 2628 CD Delft, Nederland

Abstract: In this presentation I will give an overviev of my research in the area of control of wind turbines and farms. After a brief history on how developments in control theory and technologies contributed to the development of large-scale variable-speed wind turbines, novel control technologies and the corresponding research challenges will be presented. This will include: Lidar control, control of floating wind turbines, control of wind farms and "smart" rotor control.

Sarah Spurgeon F1: 9:00 - 9:45, room: T128
Title: On discontinous Observers: From Basic Properties to a Robust Fault Detection and Condition Monitoring Tool.
Name: Sarah Spurgeon (biography)
Affiliation: Department of Electronic and Electrical Engineering, University College London, UK

Abstract: Sliding mode observers have generated a ground swell of interest in recent years. These observers have unique properties. Their ability to force the error between the measured plant output and the output of the observer to be identically zero produces a set of state estimates that are precisely commensurate with the actual output of the plant. It is also the case that analysis of the applied observer injection signal, the so-called equivalent injection signal, contains useful information about the mismatch between the model used to define the observer and the actual plant. This lecture presents an overview of both linear and non-linear sliding mode observer paradigms. The use of the equivalent injection signal in problems relating to fault detection and condition monitoring is demonstrated. A number of applications specific results are also described.

Joseph-Julien Yame F2:11:45 - 12:30, room: T128
Title: Data Driven Fault Tolerant Control: a behavioral approach.
Name: Joseph-Julien Yame (biography)
Affiliation: CRAN, University of Lorraine, Nancy, France

Abstract: In this talk we will review our recent work on data-driven fault-tolerant control (FTC ) from a behavorial system-theoric perspective. We will go through the basics of the mathematical tools of Willems' behavorial system theory and formulate within this framework a control problem as an interconnection of two dynamical systems. Thanks to this fondamental viewpoint on controls and the key concept of behavior, we will address the fault-tolerant control problem when no much a priori information about a plant is available in real-time. Here, we deal simply with the trajectories that are generated by the plant. These trajectories determine the so-called behavior of the plant in various faulty/healthy modes and based on the desired controlled behaviour, only those trajectories are selected that obeys certain laws. We will show that the vantage point of the behavorial approach is that the fault-tolerant control problem now becomes completely a real-time model-free or data-driven scheme. We will discuss in this framework two methodologies under the broad classification of FTC systems, namely projection-based approach and online redesign approach. We will also discuss the pratical issue of transcients management during controller reconfiguration in order to guarantee real-time smooth interconnection between the controller and the unknown faulty plant.