The paper presents a generalized composite noncertainty-equivalence adaptive control system for the of prototypical aeroelastic wing section using single trailing-edge surface. plunge–pitch (two-degree-of-freedom) dynamics this include torsional pitch-axis nonlinearity. open-loop exhibits limit cycle oscillations beyond critical free-stream velocity. It is assumed that parameters model are not ...

Attitude control systems for autonomous underwater vehicles are often implemented with separate controllers for pitch motion in the vertical plane and yaw motion in the horizontal plane. We propose a novel time-varying model for a streamlined autonomous underwater vehicle that explicitly displays the coupling between yaw and pitch motion due to nonzero roll angle and/or roll rate. The model fac...

Kalman and PID controller are used to design UAV (Unmanned Air Vehicles) formation flight control system for speed and pitch angle. UAV adjusted the PID parameters to realize control stability of UAV flight. The simulation results will show that Kalman and PID controller have better dynamic performance than the traditional controller in respect of simpler design, higher precision, easier implem...

Low frequency magnetic fluctuations generated by solar wind/cometary ion distributions cause pitch-angle scattering of cometary ions. The nature of this pitch angle scattering is examined by means of one-dimensional hybrid simulations, in which newborn ions are created at a constant rate, and for various injection angles, o•, relative to the magnetic field. Pitch angie scattering in the quasipe...

Pitch regulation plays a significant role in improving power performance and achieving output control wind turbines. The present study focuses on novel, pitch-regulated vertical axis turbine (VAWT) with inclined pitch axes. effect of two parameters (the fold angle the incline angle) instantaneous aerodynamic forces overall straight-bladed VAWT under tip-speed ratio 4 is investigated using an ac...

This paper presents driving and balancing control of a single-wheel mobile robot system called the name of GYROBO. GYROBO utilizes a gyro effect to stabilize itself. Three actuators are used to perform driving and balancing tasks. After modification of hardware and relocation of materials inside the wheel housing of the previous GYROBO model, performances of trajectory following control as well...

Wind farms usually produce power irregularly, due to unpredictable change of wind speed. Accordingly, we should determine the penetration limit of wind power to consider stability of power system and build a facility to control the wind power. The operational limit of wind power is determined as the minimum between the technical limit and the dynamic limit of wind power. The technical limit is ...

The present hydraulic variable-pitch mechanism of wind turbine uses three hydraulic cylinders to drive three crank and connecting rod mechanisms respectively; the blades are moved with the cranks. The hydraulic variable-pitch mechanism has complex structure, occupies a lot of space and its maintenance is trouble. In order to make up for the shortcomings of hydraulic cylinder variable-pitch syst...