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Paper details
Number 4 - December 2015
Volume 25 - 2015
Towards robust predictive fault-tolerant control for a battery assembly system
Lothar Seybold, Marcin Witczak, Paweł Majdzik, Ralf Stetter
Abstract
The paper deals with the modeling and fault-tolerant control of a real battery assembly system which is under implementation
at the RAFI GmbH company (one of the leading electronic manufacturing service providers in Germany). To model
and control the battery assembly system, a unified max-plus algebra and model predictive control framework is introduced.
Subsequently, the control strategy is enhanced with fault-tolerance features that increase the overall performance of the
production system being considered. In particular, it enables tolerating (up to some degree) mobile robot, processing and
transportation faults. The paper discusses also robustness issues, which are inevitable in real production systems. As a
result, a novel robust predictive fault-tolerant strategy is developed that is applied to the battery assembly system. The last
part of the paper shows illustrative examples, which clearly exhibit the performance of the proposed approach.
Keywords
max-plus algebra, interval analysis, battery assembly, model predictive control, fault-tolerant control