Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Decentralised sliding mode control for nonminimum phase interconnected systems based on a reduced-order compensator
AU - Yan, Xing-Gang
AU - Spurgeon, Sarah K.
AU - Edwards, Christopher
PY - 2006
Y1 - 2006
N2 - In this paper, a class of interconnected systems with mismatched uncertainties is considered. A sliding surface is proposed in an augmented space formed by the system output and the compensator state variables, and the stability of the corresponding sliding mode is analysed. A robust decentralised reduced-order output feedback sliding mode controller is then designed to drive the system to the composite sliding surface and maintain a sliding motion on it thereafter. The proposed approach allows both the isolated nominal subsystem and the nominal interconnected system to be nonminimum phase. The known interconnections and the bounds on the uncertain interconnections are fully used in the control design to reduce conservatism.
AB - In this paper, a class of interconnected systems with mismatched uncertainties is considered. A sliding surface is proposed in an augmented space formed by the system output and the compensator state variables, and the stability of the corresponding sliding mode is analysed. A robust decentralised reduced-order output feedback sliding mode controller is then designed to drive the system to the composite sliding surface and maintain a sliding motion on it thereafter. The proposed approach allows both the isolated nominal subsystem and the nominal interconnected system to be nonminimum phase. The known interconnections and the bounds on the uncertain interconnections are fully used in the control design to reduce conservatism.
KW - Interconnected systems
KW - Sliding mode technique
KW - Nonminimum phase
KW - Reduced-order compensator
U2 - 10.1016/j.automatica.2006.05.017
DO - 10.1016/j.automatica.2006.05.017
M3 - Journal article
VL - 42
SP - 1821
EP - 1828
JO - Automatica
JF - Automatica
SN - 0005-1098
IS - 10
ER -