Control systems are an integral part of almost every engineering and physical system and thus their accurate analysis is of utmost importance. Traditionally, control systems are analyzed using paper-andpencil proof and computer simulation methods, however, both of these methods cannot provide accurate analysis due to their inherent limitations. Model checking has been widely used to analyze con...

The boiler drum process is a nonlinear, complex and multivariable process which includes significant time delay. Therefore, the control on the water level in the drum is not easy and ideal. The first objective of this paper is to model the drum water level referring to 210 MW power unit for Nassiriyah thermal power plant. The second objective is to study the water level controller operation wit...

In this paper, we formulate the AQM (Active Queue Management) design problem for stabilizing a given TCP (Transmission Control Protocol) as state-space models. Thereby, we show that PD-type (Proportional-Derivative) AQM is a natural state-feedback control structure to stabilize the given TCP for the first time in the networking literature to our knowledge and by applying integral control action...

Gas turbines are increasingly spread throughout the world to provide mechanical and electrical power in consumer and industrial sections. To ensure an accurate control process temperature of gas turbine with no extortionary operator involvement, a proper controller is required. Load frequency control of gas turbine is also regulates the power flow between different areas while holding the frequ...

In this study, modelling and control of a two-link robot manipulator whose first link is rigid and the second one is flexible is considered for both land and underwater conditions. Governing equations of the systems are derived from Hamilton’s Principle and differential eigenvalue problem. A computer program is developed to solve nonlinear ordinary differential equations defining the system dyn...

A computer-based, proportional-integral control system for supersonic blowdown wind tunnels was developed in a LabVIEW environment. The control algorithm is based on numerically integrating the differential equations used to model a supersonic blowdown wind tunnel in which the proportional and integral control terms were added and tuned in a simulation to determine their appropriate values. Val...

n 1939, the Taylor Instrument CompaI nies introduced a completely redesigned version of its “Fulscope” pneumatic controller: this new instrument provided, in addition to proportional and reset control actions, an action which the Taylor Instrument Companies called “pre-act.” In the same year the Foxboro Instrument Company added “Hyper-reset’’ to the proportional and reset control actions provid...

Operation at low speed and high torque can lead to the generation of strong ripples in speed, which deteriorate system. To reduce oscillations when operating a five-phase asynchronous motor this article, we propose control method based on Gray Wolf optimization (GWO) algorithms adjust parameters proportional–integral (PI) controllers. Proportional–integral controllers are commonly used systems ...