In this paper a network QoS controller is designed. We use the controller to quantification ally control QoS under the random network traffic. The controller is built by min-plus algebra based on network calculus. The controller includes two parts, the lossless fractal regulator and the finite variable storage shaper (FVSS). We can get the arrival curve with the lossless fractal regulator. Then...

The paper deals with the development of a simple fuzzy controller structure. Compared to the common structure it does not require information on the derivation of the controlled system output variable because obtaining of information on derivation is often difficult or too costly. A possible fuzzy regulator structure only requires information about the output variable and its integrals for its ...

A novel stable tracking control scheme with embedded biological neurons is developed for a class of mobile robots. Two individual biological neurons are embedded into the backstepping-based velocity controller to eliminate the sharp jumps of linear and angular velocities as the position tracking errors change suddenly. This control system includes a velocity controller and a torque controller. ...

This paper presents the effects of fixture dynamics on the control of a variable-reluctance spherical motor (VRSM). The cascaded VRSM dynamics has the appropriate structure for the so-called back-stepping controller design method. Implementation of the back-stepping controller, however, requires the computation of the exact motor dynamics at each sampling time. This computational burden has an ...

By combining the concepts of multiple-sliding-surface and integral-variable-structure controls, one can develop a robust controller for a multiphase 9V VRM, which comprises four parallel DC–DC synchronous buck convertors operating at 300kHz. The advantages of the control scheme are its simplicity in design, good dynamic response, robustness, ability to nullify the bus-voltage error and the erro...

This paper proposes a Time Delay nonlinear dynamic model of HIV-1 (Human Immunodeficiency Virus type 1), introducing the drug consumption efficiencies as the controlling input for the model. The paper also represents the fuzzy T-S representation and the corresponding Fuzzy T-S controller. The controller parameters are tuned using LMIs (Linear Matrix Inequalities). The main focus is on the stabi...

This paper presents a new optimization algorithm to design an optimal proportional, integral, derivative (PID) controller in hydro-turbine generator governor for damping output frequency oscillations. In this research, we utilize a stochastic and optimal based PID controller to control frequency-response of the hydro turbine. The proposed algorithm is employed to design an optimal PID controlle...

This paper deals with the design and evaluation of a robust controller for static VAR compensator (SVC) in remote industrial power systems to enhance the voltage profile for three-phase single cage induction motor (SCIM) loads. The controller design is based on H∞ theory to deal with uncertainties arising in industrial network modelling. The performance of the H∞ controller has been evaluated...