Three-phase inverters are widely used in grid-connected renewable energy systems. This paper presents a new control methodology for using an adaptive fuzzy (AFC) technique. The implementation of the proposed controller does not need prior knowledge system mathematical model. capabilities approximating nonlinear functions inverter exploited to design controller. is capable achieve objectives pre...

 Abstract— This paper presents the speed control scheme of indirect vector controlled of induction motor (IM) drive. Voltage source inverter type space vector pulse width modulation (SVPWM) is used for PWM controlling scheme. Regarding the capabilities and potentials of intelligent based on Fuzzy logic in the control of non-linear and complex systems, the Fuzzy PID controllers is developed for...

This paper proposes a model reference tracking based fuzzy adaptive PI (MRFAPI) controller for non-linear process plant. The second order reference model is proposed for the system. The conical-tank level process system is used as a process plant. The proposed MRFAPI controller is combined with fuzzy logic and conventional variable PI controllers. The on-line estimation of the controller parame...

Simultaneous removal of nitrogen and phosphorous is a recommended practice while treating wastewater. In the present study, control strategies based on proportional-integral (PI), model predictive (MPC), fuzzy logic are developed implemented plant-wide wastewater treatment plant. Four combinations frameworks in order to reduce operational cost improve effluent quality. As working platform, Benc...

In this paper, Series-Parallel LLC type of DC DC resonant power converter configuration that uses a Compression Network (CN) has been proposed. The purpose of this CN is to maintain desired current waveform over entire range of voltage operating condition. The proposed circuit maintains high efficiency over wide range of power level. Also, the closed loop PI and fuzzy controller is used on the ...

This paper suggests the use of Gravitational Search Algorithms (GSAs) in fuzzy control systems tuning. New GSAs are first offered on the basis of the modification of the depreciation equation of the gravitational constant with the iteration index and of an additional constraint regarding system’s overshoot. The GSAs are next used in solving the optimization problems which minimize the discretet...

Abstwd I n this paper a comparison between Fuzzy Logic Current Controller (FLC) and classical PI current Controller for a LCL-filter based PWM rectifier is presented. Both simulations and experimental results are included. The current control of PWM rectifiers is implemented in voltage oriented coordinates, known as Voltage Oriented Control (VOC). This paper also presents design process of the ...

This paper presents a fuzzy logic, PI, average current controlled shunt active power filter used to compensate for harmonic distortion in three-phase four-wire systems. The shunt active filter employs a simple method for the calculation of the reference compensation current based on Fast Fourier Transform. The presented Shunt Active Power filter is able to operate in balanced, unbalanced and Va...

Control strategies for extracting the three-phase reference currents for shunt active power filters are compared, evaluating their performance under different source conditions with PI and Fuzzy Controllers in MATLAB/Simulink environment When the supply voltages are balanced and sinusoidal, the two control strategies are converge to the same compensation characteristics; However, the supply vol...

Quad rotor is a renowned underactuated Unmanned Aerial Vehicle (UAV) with widespread military and civilian applications. Despite its simple structure, the vehicle suffers from inherent instability. Therefore, control designers always face formidable challenge in stabilization and control goal. In this paper fuzzy membership functions of the quad rotor’s fuzzy controllers are optimized using nat...