期刊
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY
卷 12, 期 6, 页码 811-826出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCST.2004.833626
关键词
fault tolerant control; linear parameter varying (LPV) representation; Markovian control; nonlinear H-infinity control; underactuated manipulator
This paper develops procedures based on H-infinity techniques to achieve position control underactuated manipulators. First, in a deterministic approach, we compare two nonlinear H-infinity control techniques in order to verify the differences in structure and robustness of controllers based on quasi-linear parameter varying (LPV) representation and game theory. In this case, the use of brakes is necessary when a fault occurs. Secondly, we develop a procedure based on Markov theory, where an H-infinity Markovian controller is used to control the position of manipulators subject to abrupt changes in configuration. In this case, the brakes are not necessary to guarantee the stability of the system. The theory developed is tested in an actual manipulator setup.
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