A steam turbine, heart of all refineries. This work presents the mathematical modelling of the steam turbine unit in isolated operating condition, based on the continuity equation including servomotor for actuation purpose. Steam turbine should run at a constant speed for its safe operation and frequency stability. Adaptation of different controller like Feedback, PI, PID using certain adaptati...

This paper presents the design and experimental implementation of a Fuzzy logic controller (FLC) for a DC servomotor speed and position control. The motivation to utilize the FLC is its robustness against model's parameters inaccuracy and uncertainty. The implementation of the FLC algorithm is carried out by a low cost 8-bit microcontroller instead of using expensive general purpose microproces...

This paper explores a novel single tail tilt servomotor tri-rotor ducted vertical takeoff and landing unmanned aerial vehicle system (VTOL-UAV), proposes compound control method combining disturbance observer, model predictive (MPC) sliding mode nonlinear dynamic inversion (NDI), realizes the robust tracking of VTOL-UAV trajectory under disturbance. Specifically, inner loop adopts inverse which...

Acceleration profile generation for jerk limitation is a major issue in automated industrial applications like computer numerical control (CNC) machinery and robotics. The automation machinery dynamics should be kept as smooth as possible with suitable controllers where trajectory precision ensures quality while smoothness decreases machinery stress. During the operation of commercially availab...

A simple and reliable recording double Fabry-Perot spectrometer is described. The linear increase in the first etalon was achieved as usual by means of a pressure reservoir of 200 atm. and a small glass capillary tube. With a second pressure reservoir and a needle valve, the flow rate of which could be changed by a servomotor, the pressure in the second Fabry-Perot was increased. The difference...