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It is proposed in this article an optimal solution to improve the transient behavior of doubly-fed induction generators in wind parks connected to the electrical grid, when they are submitted to voltage sags due to the occurrence of faults in the electrical network. The recommended procedure in these cases is to maintaining the wind generator connected to the electrical network during and after the...
An approach of fuzzy logic and genetic PI is proposed to regulate the number of vehicles entering a freeway entrance point. First, the freeway traffic flow model is built, and the objective of ramp metering is determined. In conjunction with the advantages of fuzzy logic in processing language information and PI control in processing error, a fuzzy-PI mix controller is then designed, and genetic algorithm...
This paper deals with using of genetic algorithm for optimization of membership functions of fuzzy PI controller, which is obtained from linear PI controller. Application of fuzzy PI controller in control of simulation nonlinear model of hydraulic system with goal to solve problem tracking reference trajectories. Algorithm is coded in simulation language Matlab/Simulink, which is verified in control...
The work described in his paper aims at exploring the use of soft computing techniques for designing a controller to perform control of level in a spherical tank. First, system identification of this nonlinear process is done using black box model, which is identified to be non linear and approximated to be a first order plus dead time (FOPDT) model. Then the controller tuning strategy has been applied...
This paper presents a design procedure based on evolutionary computation, more specifically on genetic algorithm (GA) to obtain optimal PI controllers to the static converter connected to the rotor of doubly fed induction generators (DFIGpsilas), in variable speed wind generation systems connected to the electrical grid. The converter of the DFIG has a protection system that monitors continuously...
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