This paper considers a trajectory-tracking control algorithm for underactuated marine vehicles moving horizontally in which the current North-East-Down frame is constant. modification of scheme based on input-output feedback linearization method application condition that vehicle symmetric with respect to left and right sides. The proposed can be applied fully asymmetric model, and, therefore, ...

The need for regulating the operation of unhealthy motor drives has motivated researchers to modify control techniques in order be valid new drive state. use a fault-tolerant facility is an attractive feature multiphase machines; therefore, applicability different controllers been established under open-phase fault conditions. considered algorithms were utilized analyze system and evaluating ca...

In this paper, dynamic image-based visual servo control approach is designed for an underactuated flying robot tracking a moving target. The objective is to consider the full dynamics of the system to design a vision based controller. Passivity properties of dynamics of perspective image moments in virtual image plane, obtained using inertial information of the robot, are utilized to design a d...

We demonstrate an in-line polarization controller based on a hollow optical fiber filled with a nematic liquid crystal by fabricating thin-film electrodes on the cladding of a fiber. The polarization controller consists of three control sections with fixed optic axes, which operate as phase retarders. The phase retardation in each section is controlled by the magnitude of the applied electric f...

In this paper a nonlinear thrust controller for fixed pitch marine propellers with torque loss estimation and an antispin strategy is presented. The controller, designed to operate in the four-quadrant plane composed by the shaft speed and the vessel speed, is a combination of a thrust controller developed for calm/moderate sea states and an anti-spin strategy to reduce power peaks and wear-and...

In this paper, a method for simulating nonlinear control systems using spreadsheets is presented. Various nonlinear blocks are simulated using graphics and cell formulas, and are generated by clicking on specially developed toolbar buttons. These blocks can be connected to one another using a simple and intuitive procedure again based on graphics and toolbar buttons. A complete nonlinear system...

A man without previous flying experience stole an aircraft and took off in order to commit suicide. An air traffic controller managed to convince him to land the plane. This article reports the psychiatrist's investigation into the case.

A simple method for chaotifying piecewise linear maps of the plane using a piecewise linear controller function is given. A domain of chaos in the resulting controlled map was determined exactly and rigorously.

Two problems: Parameter uncertainty and chattering effect present in Control signal are have a great deal in performance of system with the designed controllers. This paper presents Fuzzy Sliding Mode Controller (FSMC) for Multi Area Load Frequency Control problem or Automatic Generation Control (AGC) in a De-regulated environment. The first problem is addressed by designing a sliding mode cont...

In this paper, a method for minimization of Total Harmonic Distortion (THD) is proposed in case of PWM inverter. Inverters are widely used in many applications such as in the UPS and ac motor drives resulting in harmonics production. A phase compensation Resonant Controller (RSC) is proposed for 1-phase pulse width modulation (PWM) inverter using MATLAB simulation. The simulation results are th...