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The design of smooth switching control with application to V/STOL aircraft dynamics under input and output constraints. (English) Zbl 1286.93070

Summary: This paper presents a smooth switching gain-scheduled control approach for Linear Parameter Varying (LPV) system dynamics, indexed by a scalar varying parameter. The proposed approach is demonstrated by application to the planar Vertical/Short TakeOff and Landing (V/STOL) aircraft dynamics subject to input and output constraints. In the design of switching control, the switch logic determines the switching process between control laws. The usual switching logics use the instantaneous switching manner, which can cause discontinuous chattering control signal. By performing convex weightings between two individual control laws for neighboring subsystems, the proposed smooth switching gain-scheduled control approach can provide improved performance but does not arouse control signal chattering. For the studied application, the nonlinear aircraft dynamics are represented in the form of LPV systems with parameter dependence on attitude angle. The resulting design is verified by the obtained relative stability and time response simulations.

MSC:

93B51 Design techniques (robust design, computer-aided design, etc.)
93C15 Control/observation systems governed by ordinary differential equations
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