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首页> 外文会议>2011 19th Iranian Conference on Electrical Engineering >Propeller shaft speed controller design based on nonlinear models of nondimensional thrust and torque coefficients
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Propeller shaft speed controller design based on nonlinear models of nondimensional thrust and torque coefficients

机译：基于无量纲推力和转矩系数非线性模型的螺旋桨轴速度控制器设计

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摘要

This paper presents a nonlinear control system based on state observer for underwater vehicle thrust control. For this purpose first nonlinear thrust and torque models is approximated with a quasi-steady state. Then dynamic equations are represented by using a three-state model of propeller shaft speed, forward speed of the vehicle, and the axial flow velocity. At this stage, a control system including nonlinear observer for estimation of axial flow velocity and a nonlinear shaft speed controller for compensation of thrust losses is presented. Stability is proven in the framework of Lyapunov stability theory. The proposed control system is simulated for an underwater vehicle that shows high performance compared with a control system without observer for axial flow velocity.
机译：本文介绍了基于水下车推力控制的国家观察者的非线性控制系统。为此目的，首先是具有准稳态的非线性推力和扭矩模型。然后通过使用三种螺旋桨轴速度，车辆的前进速度和轴向流速来表示动态方程。在该阶段，提出了一种控制系统，包括用于估计用于补偿推力损耗的轴向流速和非线性轴速度控制器的非线性观测器。在Lyapunov稳定性理论的框架中证明了稳定性。所提出的控制系统被模拟用于水下车辆，其与控制系统相比，与没有观察者的控制系统相比，该水下车辆具有高性能，而没有观察室的用于轴向流速。

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