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This paper presents the study and analysis of the fuzzy and PI control system applying to Permanent-Magnet Brushless DC (BLDC) motor. The most commonly used controller for dc motor controller system is Proportional-Integral (PI) controller. However, the PI controller has some disadvantages such as: high starting overshoot, sensitivity to controller gains and sluggish response due to sudden load disturbance...
Analysis and damping of torsional oscillations in series compensated transmission systems is presented in this paper. Series compensation of transmission lines connected to turbo generators can result in sub synchronous resonance (SSR) leading to adverse torsional oscillations. Use of flexible AC transmission system (FACTS) controllers such as static synchronous compensator (STATCOM) are increasing...
A gain-scheduling control scheme produces a nonlinear global controller from a series of local controllers tuned at specific operation points. A major problem on the design of gain scheduling controllers is the design and implementation of the switching logic to have a smooth plant response all over the operation range. This point is solved with the application of fuzzy logic, which maintains advantages...
The main problem for variable speed constant frequency wind power generation system is how to improve the dynamic respond as well as stability. In this paper, according to mathematical model of wind power generator and active power separate control strategy with reactive power, PI controller and fuzzy controller were used separately in the control link of active power. And active power fuzzy controller...
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...
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