a detailed model of wind power station, including double fed induction generator, dfig is presented in this paper. two control mechanisms are included in the model. the inner control system uses stator flux oriented control for the rotor side converter and grid voltage vector control for the grid side converter. the outer control system is used for wind turbine pitch angle. pscad/emtdc is used ...

The time-optimal control of a distributed parameter system is derived in closed form. The class of systems studied in this work is distributed parameter systems whose dynamics are governed by the wave equation. A frequency domain approach is utilized to arrive at the time-optimal solution that is bang-off-bang. To corroborate the optimally of the control profile derived for the distributed para...

Using mobile sensors to perform optimal measurement and estimation of a distributed parameter system in a domain of interest is considered in this paper. Given parameters, how to optimally plan the motion trajectories of the mobile sensors has been known in the literature, where the purpose of mobile sensing is to best estimate the parameters. Clearly, there is a “chick-and-egg” problem regardi...

The problem of approximating a distributed parameter system with free boundary conditions is solved for the 2-dimensional wave equation. To this end we first model the wave equation as a distributed-parameter port-Hamiltonian system. Then we employ the idea that it is natural to use different finite elements for the approximation of different geometric variables (forms) describing a distributed...

The aim of this work was to test model based controllers with pilot-scale water heating equipment. The controlled variable is the outlet temperature, and the manipulated variable is the volumetric flow rate. The main disturbances are the heat duty and the inlet temperature. The power of the electric heater can be manipulated to imitate solar radiation, thus our system could be the physical mode...

In the paper distributed parameter system models in the form of lumpedinput/distributed-output systems are introduced and modeling of temperature fields of the die in the benchmark casting plant is presented. Temperature fields were modeled and studied using a finite element method based software package COMSOL Multiphysics and numerical models in the form of a lumped-input/ distributed-output ...

This investigation deals with single server queueing system wherein the arrival of the units follow Poisson process with varying arrival rates in different states and the service time of the units is arbitrary (general) distributed. The server may take a vacation of a fixed duration or may continue to be available in the system for next service. Using the probability argument, we construct the ...

In the paper design of control processes for class of distributed parameter systems is presented. Controlled system is interpreted as lumped-input/distributed-output systems with dynamics modelled by finite element method. Schemes of distributed parameter control loops are arranged in software environment Distributed Parameter Systems Blockset for MATLAB & Simulink, which is third-party MathWor...