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Title: A bumpless hybrid supervisory control algorithm for the formation of unmanned helicopters
Authors: Karimoddini, A.
Lin, H.
Chen, B.M. 
Lee, T.H. 
Keywords: Formation control
Hybrid supervisory control
Implementation issues
Unmanned aerial vehicles (UAVs)
Issue Date: Sep-2013
Citation: Karimoddini, A., Lin, H., Chen, B.M., Lee, T.H. (2013-09). A bumpless hybrid supervisory control algorithm for the formation of unmanned helicopters. Mechatronics 23 (6) : 677-688. ScholarBank@NUS Repository.
Abstract: This paper presents a bumpless hybrid supervisory control scheme for the formation of unmanned helicopters. The approach is based on the polar partitioning of the space, from which a finite bisimilar quotient transition system of the original continuous variable control system is obtained. Then, to implement the designed hybrid supervisory control algorithm, a hierarchical control structure is introduced with a discrete supervisor on the top layer that is connected to the regulation layer via an interface layer. Transiting over the partitioned space may cause jumps on the generated control signal which is harmful for a real flight system. Hence, a smooth control mechanism is introduced that has no jump when the system's trajectory transits from one region to its adjacent region while preserving the bisimulation relation between the abstract model and the original partitioned system. Several actual flight tests have been conducted to verify the algorithm and the control performance. © 2013 Elsevier Ltd. All rights reserved.
Source Title: Mechatronics
ISSN: 09574158
DOI: 10.1016/j.mechatronics.2013.07.004
Appears in Collections:Staff Publications

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