Fault tolerant control Mechanical actuator Redundancy Parallel series configurations
WFB Wirtschaftsförderung Bremen GmbH
STEFFEN, T. ...et al., 2010. HRA - High redundancy actuation overview. IN: Borgmann, H. (ed.) 12th International Conference on New Actuators & 6th International Exhibition on
Smart Actuators and Drive Systems, 14–16 June 2010, Bremen, Germany: Conference Proceedings, Bremen: WFB Wirtschaftsförderung Bremen GmbH, pp. 574-578.
This paper presents an overview of recent research into a new method of providing fault tolerant actuators for high-integrity and safety-critical applications. The High Redundancy Actuator (HRA) uses a large number of small actuation elements to make up a single actuator. It provides superior reliability and efficiency over current technology, by configuring and controlling the elements so that faults are inherently accommodated. Simulation and experimental results demonstrate feasible active and passive fault tolerant control.
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