This paper presents an enhanced control strategy for Wind Energy Conversion System (WECS) using Doubly-Fed Induction Generator (DFIG). A robust Super-Twisting (STW) sliding mode variable speed wind turbine is developed to produce the optimal aerodynamic torque and improve dynamic performance of WECS. The electromagnetic DFIG directly tracked proposed achieve maximum power extraction. effectiveness STW are compared conventional Sliding Mode (SM) Proportional-Integral (PI) controllers....

Ce travail est une tentative pour étudier et discuter cinq types de techniques MPPT. La technique du suivi point puissance maximale, MPPT utilisée dans les systèmes photovoltaïques extraire le maximum puissance. Les plus populaires sont revues étudiées, telles que: Perturber Observer, Incrément la conductance, mesure d’une fraction tension en circuit ouvert, ‘FCO’, courant court-circuit, ‘FCC’ contrôle à base logique floue, ‘LF’. L’environnement Matlab-Simulink utilisé analyser, puis...

Since, photovoltaic (PV) systems are currently very expensive, many scientific studies being conducted to maximize the power such deliver. The best solution suggested so far consists of integrating Maximum Power Point Tracking (MPPT) with PV systems. present paper proposes use fuzzy logic technique in actual implementation MPPT controller. system includes a panel, boost converter and an This is designed, executed tested under variable environmental constraints using several technologies. A...

Unlike the more prevalent alternating current transmission systems, high voltage direct (HVDC) electric power system transmits using current. In order to investigate precise remedy for fault detection of HVDC, this research proposes a method HVDC diagnostic methodologies with their limits and feature selection-based probabilistic generative model. The main contribution study is wavelet transform based on ant colony optimization ANN detect different types faults in lines. proposed method,...

In this paper, we propose a Remote control of domestic equipment from an Android application based on Raspberry pi card. Home automation has been recalled in the first stage. second stage developed android system. The different diagrams have presented. Different codes to allow communication between remote user, web server, raspberry card and home components. Also interface assure components installed Smartphone, server order shutter windows. experimental results are successful.

Wind energy is a source of economic energy, clean and inexhaustible. In this work we describe the different types turbines generators that exist in literature their models. next, give advantages disadvantages for each type uses. To take advantage wind controllers must be used such as pitch angle control to save elements system during high speeds maximum power point tracking extract power. A comparison between several methods has been made based on efficiency controller, its complexity speed...

Various methods have been proposed to provide the protection necessitated by high voltage direct current system. In this field, most of research is confined various types DC and AC line faults a maximum two switching converter faults. The main contribution study use new method for fault detection in HVDC systems, using gray wolf optimization along with artificial neural networks. Under method, help faulted non-faulted signals, features signals are extracted much shorter period signal....

In this work we are interested to discrete robust fuzzy sliding mode control. The SISO nonlinear uncertain system is presented by the Takgi- Sugeno type model state. We recall principle of control theory then combine systems with technique compute at each sampling time law. law comports two terms: equivalent and switching which has a high frequency. uncertainty replaced its upper bound. Inverted pendulum mass spring dumper used check performance proposed scheme.

The Maximum Power Point Tracking (MPPT) is an essential technique used to have maximum energy of the Photovoltaic System. Since, a conventional MPPT algorithm uses fixed step get optimal value duty cycle, many drawbacks are presented. For this end, purpose proposed based on fuzzy enhance choice variable size and therefore improve performances photovoltaic system. Indeed, concept new compute according slope Power-Voltage characteristic for panel. Then, it provides appropriate cycle. features...

Owing to the complexity of photovoltaic systems and their specific behavior, researchers are substantially prompted by FPGA circuit for prototyping testing system. In addition, improve efficiency system, Maximum Power Point Tracking (MPPT) is an essential technique that enables panel delivers its maximum output power. Fuzzy logic seems be efficient solution ensures optimal operation For this end, work aim implement a fuzzy MPPT on control The system composed panel, boost converter controller...

This paper proposes a grid-connected Photovoltaic energy system through three-phases DC-AC converter. For this purpose, the characterization of PV system, integrating maximum power point strategy (MPPT) based on Fractional Open-Circuit Voltage (FOV) and Short-Circuit Current (FSC) methods, is developed treated under software MATLAB / Simulink. Thereafter, proposed design three phases inverter has been simulated.

The grown complexity of the robot manipulators dynamics taking into account jointflexibility, parameter uncertainties and unknown bounded disturbances makes conventionalcontrol strategies difficult complex to synthesize. This paper focuses on investiga-tion backstepping control flexible joint manipulator driving by Brushless DC Motor(BDCM) in presence fortracking trajectory. goal this is compensate all distur-bances for manipulator. To study effectiveness controllers, backstep-ping...

In this paper, we propose an indirect adaptive fuzzy controller for a class of SISO non-linear systems. The plant model structure is represented by Takagi-Sugeno (T-S) type system. parameters the T-S are adjusted online; proposed algorithms based on sliding manifold. adjustable and mode theory. analysis stability Lyapunov approach. state tracks asymptotically any bounded reference input signal. Inverted pendulum mass spring damper two examples used to check performances control scheme.

This paper deals with wind energy conversion system (WECS). The includes essentially turbine, permanent magnetic synchronous generator and power converters. All these parts have been modeled. In addition a maximum point tracking (MPPT) method is presented. We used specific controller to maintain constant level voltage at the DC bus. An LCL type filter has obtain perfect sinusoidal signal, after inverter. Although, we present control of active reactive power. simulated on Matlab-Simulink...

The LCL filter has been widely employed as a conversion interface between the distributed generation units (DG) and main power grid. is connected in series with output of inverter play very important role to attenuate switching-frequency ripple supply high-quality ac feed it into Although key part for interfacing grid-inverter, third order system, which generates resonance frequency that must be damped. In fact, increases system instability. solve this, various damping strategies suppress...

This paper deals with the Maximum Power Point Tracking (MPPT) for photovoltaic energy system. It includes array panel, DC/DC converter, and load. The operating point system depends on climatic parameters For each temperature irradiation pair, there exists only one optimal which corresponds to maximum power transmitted is described by nonlinear equations. transformed into an augmented a Takagi-Sugeno (T-S) fuzzy model. proposed MPPT algorithm permits transfering from panel load based Parallel...