Present study consists a mathematical model and motion control analysis for a hybrid-driven underwater glider, which can be propelled by using buoyancy and propeller with an addition of wings and a rudder that can be controlled independently. Thus, it can overcome the constraints of speed and maneuverability that was normally possessed by the fixed-winged buoyancy-driven underwater glider. Math...

We consider a quadcopter operating in turbulent windy environment. The environment may be imposed on by structures, landscapes, terrains and most importantly the unique physical phenomena lower atmosphere. Turbulence can negatively impact quadcopter's performance operations. Modeling turbulence as stochastic random input, we investigate control designs that reduce effects motion. In particular,...

A novel digital implementation of speed controller for a Permanent Magnet Synchronous Motor (PMSM) with disturbance rejection using conventional observer combined with Extended Kalman Filter (EKF) is proposed. First, the EKF is constructed to achieve a precise estimation of the speed and current from the noisy measurement. Second, a proportional integral derivative (PID) controller is developed...

Present study consists the design of an optimal state feedback controller for our USM Underwater Glider (USMGlider). The glider mathematical model for motion control is obtained using MATLAB System Identification Toolbox, where ballast pumping rate is an input signal to the system. Different parameters were observed independently, the pitching angle, and the depth. Two different models were obt...

The linear quadratic regulator (LQR) controller is used to enhance the low voltage ride through (LVRT) of doubly-fed induction generator based wind turbines (DFIG-WT). A heuristic optimization method, which is MVMO, is used for optimal design of the LQR weighting matrices Q and R. The objective function of the optimization problem is to minimize the peak short-circuit current and the associated...

A current source converter (CSC) based static synchronous compensator (STATCOM) is a shunt flexible AC transmission system (FACTS) device, which has a vital role as a stability support for small and large transient instability in an interconnected power network. A robust linear quadratic regulator (LQR) based controller for CSCSTATCOM is proposed. In this paper, LQR based CSC-STATCOM is designe...

ROTATIONAL DOUBLE INVERTED PENDULUM Name: Li, Bo University of Dayton Advisor: Dr. Raúl Ordóñez The thesis deals with the stabilization control of the Rotational Double Inverted Pendulum (RDIP) System. The RDIP is an extremely nonlinear, unstable, underactuated system of high order. A mathematical model is built for the RDIP with the Euler-Lagrange (E-L) equation. A Linear Quadratic Regulator (...

The quality of service and the respect contractual characteristics voltage is a major issue transmission system operator. In this context, code requires that wind turbine participate in regulation voltage. Any variation must be compensated by producing or absorbing reactive power. This article studies modelling control strategies energy conversion based on doubly fed induction generator. It pre...

In this paper, the seven degrees of freedom (DOF) nonlinear system model articulated vehicles, including vehicle dynamics model, tire and hydraulic steering linearized ideal reference is constructed. A layered stability controller for built. The particle swarm optimization (PSO)-based variable parameter linear quadratic regulator (LQR) upper-level yaw torque lower-level distributor based on pri...

To resolve the problem of high-precision trajectory tracking control under interference conditions in a missile’s mid-guidance phase, according to constructed nominal trajectory, an improved adaptive high-order sliding mode controller (AHSTC) is proposed. In this method, open-loop trajectories are established nonlinear programming and Gaussian pseudospectra method. A developed by designing surf...