A dynamic anti-saturation pitch angle control method for an autonomous underwater vehicle
A technology of underwater vehicle and control method, applied in attitude control and other directions
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[0036] Describe the present invention below in conjunction with specific embodiment:
[0037] In this embodiment, the model parameters are set according to a certain type of AUV: c 1 =-4.695,c 2 = 10.735, c 3 = -1.8207, c 4 =0.2623,c 5 =-1.274, c 6 =-0.102, where c 1 , c 2 The value of is the value set in the simulation modeling, in the actual control, it is considered that c 1 , c 2 The value of is unknown. The initial state is set to θ (0) = 10°, ω z(0) = 3° / s. The initial state of the estimated parameters is: The desired pitch angle is a filtered square wave with an amplitude of 28.7°. τ=20, k=0.02, λ=1. Set the maximum output of the actuator as u m = 12°.
[0038] First, ignoring the coupling of the pitching motion and rolling motion of the underwater vehicle, the pitching motion model of the underwater vehicle is established:
[0039]
[0040]
[0041]
[0042] y = θ
[0043] where θ is the pitch angle, ω z is the pitch rate, α is the angle of...
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