Aiming at a class of multiple-input multiple-output (MIMO) system with uncertainty, a sliding mode control algorithm based on neural network disturbance observer is designed and applied to ship yaw and roll joint stabilization. The nonlinear disturbance observer is finished by radial basis function neural network and with that a terminal sliding mode control algorithm is proposed. The asymptoti...

Flow behavior and aerodynamic performance of a small-scale joined-wing unmanned aerial vehicle (UAV) was studied experimentally numerically under various pitch yaw angle combinations in subsonic flow conditions. Selected numerical results are compared against experimental obtained using surface oil visualizations force measurements, with additional simulations expanding the range combined confi...

Yaw system is an important part of wind turbine control system, yaw error performance index turbine, which has great influence on power generation. The utilization and the output generation have been determined by error. In order to make better aligned toward direction, reduce error, increase generated unit, angle errors analyzed, in this paper, method test, strategy studied respectively. Based...

This paper describes a semi-global exponentially stable output feedback control law for automatic heading control of ships described by a nonlinear model. Only compass (yaw angle) feedback is used. The yaw rate signal is reconstructed by a linear observer. A wave lter is included in the observer to reduce wear and tear on the rudder servo due to 1st-order wave-induced disturbances. Integral act...

In this thesis we develop a gain-scheduled control law for the quadcopter unmanned aerial vehicle (UAV). Techniques from linear control theory are introduced and used to construct adaptive proportional and proportional-integral control laws for use with both state and observer-based output feedback. The controller monitors the yaw angle of the quadcopter and updates a gain matrix as the system ...

This paper presents a method to design an integrated path tracking and lateral stability controller for autonomous electric vehicle with four-wheel independent steering (4WIS) on low friction roads. Recent advances in driving have led extensive studies control. However, is difficult In this paper, control was converted the yaw rate one cope problems caused by To generate reference tracking, we ...

The yaw moment of wind turbine rotors has never been in the focus aerodynamics. With increasing activities development support structures for Floating Offshore Wind Turbines (FOWT), which passively align with wind, interest shifted, as an accurate determination is a crucial issue successful design such power plants. A downwind coned rotor promising option to increase and therefore self-alignmen...

This paper presents a comparative study on the effects of input configurations linear quadratic (LQ) controllers path tracking performance under low friction conditions. For last decade, controller has adopted several control inputs, configurations, and actuators. However, these have not been compared with one another single frame in terms common measures. this reason, compares LQ available act...

Distributed drive electric vehicles are regarded as the promising transportation due to advanced power flow architecture. Optimizing yaw motion enhance vehicle safety is a challenging job. Besides, nonlinear features in affect control accuracy of controllers. To this end, deep reinforcement learning (DRL) based direct moment (DYC) strategy put forward here. Vehicle dynamics can be approximated ...