Handling the internal parametric variations and nonlinearities of high rated wind energy conversion system (WECS) is remained among main challenges to maximize produced energy, ameliorate its quality ensure efficient integration on grid. In this context, a robust integral sliding mode control (ISMC) with Lyapunov function proposed active reactive powers doubly fed induction generator (DFIG) based turbine, assure dynamic performances according speed variation. To operate around an optimal...

This paper presents an improved Direct Torque Control (DTC) strategy for a Doubly Fed Induction Machine (DFIM) powered by two voltage source inverters (VSI) at levels. is based on the fuzzy logic controller. The main objective to improve performance of system reducing electromagnetic torque ripples and improving currents shape optimization total harmonic distortion (THD). hysteresis regulators vectors selection table conventional DTC are replaced blocks realize control. control strategies...

Proportional Integral Derivative (PID) is the most popular controller used in automatic systems, because of its robustness, ability to adapt behaviors system, making them converge toward optimum. These advantages are valid only case linear as they present poor robustness nonlinear systems. For that reason, many solutions adopted improve PID The optimization algorithm presents an efficient solution generate optimums gains adapting system’s nonlinearity. regulation speed Direct Torque Control...

In recent years, regulating a wind energy conversion system (WECS) under fluctuating speed and enhancing the quality of electricity provided to grid has become hard challenge for many academics. The current research provides better control strategy decrease occurrence chattering phenomena. Combined with Maximum Power Point Tracking (MPPT) pitch angle control, is possible increase performance efficiency Permanent Magnet Synchronous Generator (PMSG) based Wind Energy Conversion System. This...

Abstract This article presents the direct torque control (DTC) strategy for doubly fed induction motor (DFIM) connected to two three-level voltage source inverters (3LVSIs) with neutral point clamped (NPC) structure. method allows reduce and flux ripples as well optimize total harmonic distortion (THD) of currents. The use 3LVSI increases number generated voltage, which improving quality its waveform thus improves DTC strategy. system modeling are implemented in Matlab/Simulink environment....

With the development of wind power generation in recent years, several studies have dealt with active and reactive control systems, along quality energy produced connection to distribution networks. In this context, research proposes a new contribution field. The major objective work is nonlinear adaptive backstepping technique applied DFIG based system an optimization that uses rooted tree (RTO) algorithm. strategy on Lyapunov guarantee stability system. It two converters (i.e., machine...

<p>In the recent years, development and exploitation of renewable energy knew a great evolution. Among these resources, wind power represents an important potential for that system has been subject several researches. The purpose this study is to improve extracted from energy, taking into consideration variation speed which causes problem in production. For purpose, we have controlled powers whether it active or reactive delivered by generator. This paper, presents essentially modeling...

This paper presents a new contribution of the nonlinear control technique electrical energy in wind system. The sliding mode used to powers DFIG-Generator is connected power grid by two converters (grid side and machine side). proposed model validated using tracking robustness tests with real speed. was developed under Matlab/Simulink, FPGA Loop design DFIG model. By employing co-simulation, purpose test controller for simulated or system its entirety. results obtained cο-simulation show...

In this article, we are interested in the comparative study between two control techniques of doubly fed induction machine (DFIM) functioning motor mode, these approaches are: field oriented (FOC) and direct torque (DTC). At beginning, focused on principle operation modeling DFIM. Secondly, studied realized implementation commands Matlab/Simulink environment. Finally, simulation results controls presented, analyzed compared.

This research paper deals with the improved direct torque control (DTC) of a doubly fed induction machine (DFIM) operating in motor mode.The conventional DTC is powerful tool to ensure robustness and good dynamics.However, variable switching frequency as well presence flux ripples due use hysteresis controllers are major drawbacks this strategy.For purpose, by space vector Modulation (SVM) developed improve performance, replacing hysterisis PI reduce electromagnetic ripple order minimize...

The purpose of this study is to design a real-time current predictive control for wind energy conversion system (WECS) using doubly-fed induction generator (DFIG). A emulator and test bench assessing strategies were conceptualized. DSPACE DS1104 board served as the foundation emulation system. While power indirectly regulated via currents, latter controlled directly by control. Using discrete time, suggests appropriate voltages converter each sample period attain specified set points power....

In this paper, we have presented a general study of self excited induction generator used in isolated renewable energy conversion source. Tthe behaviour generated voltage under variable load, rotor speed and excitation capacitance is presented. Also, proposed robust controller suitable order to control the terminal DC different AC load conditions for supplied an load. The experimental characteristic curve simulation result scheme are

This work develops a real‐time implementation on the DSPACE environment of an adaptive non‐linear control strategy for wind energy conversion system (WECS) based doubly‐fed induction generator (DFIG). The DSPACE‐DS1104 board is directly associated with experimental bench power system. backstepping controller has been realised to active and reactive powers DFIG connected electricity grid via two converters (grid side machine side). First, full review WECS discussed. Subsequently, detailed...

In this paper, we present a new contribution of FPGAs (Field-Programmable Gate Array) for control electrical machines. The adaptative Backstepping approach permanent magnet synchronous motor drive is discussed and analyzed. We Matlab&Simulink simulation experimental results from benchmark based on FPGA.  technique provides systematic method to address type problem. It combines the notion Lyapunov function controller procedure recursively. First, no utilized obtain robustness mismatched...

This paper develops a new strategy to develop and improve the robust performance of speed regulation for doubly-fed induction machine (DFIM), whose is connected voltage inverter pulse width modulation (PWM) by windings stator rotor independently. work objective stabilise system DFIM use in wind-turbine systems regardless internal external parametric variations. Using overall stability adaptive backstepping control, this control shown based on Lyapunov technical. The analysis presented....

In the propose of work, we concerns elaboration an efficient and robust control active reactive power by using adaptive Backstepping control, which is applied to wind turbine energy. However, this controller depends highly on parameter variations Doubly Fed Induction Generator (DFIG). Their respective performances are compared with Field oriented regarding sudden speed variation, reference tracking robustness against system parameters variations. The simulation results simulated environment...

In this paper, we are interested in the study and improvement of performances a Doubly Fed Induction Machine (DFIM) functioning motor mode using strategy Direct Control Torque (DTC) based on fuzzy logic. At first, focusing principle modeling DFIM. Secondly, applied approach to DTC control. Finally, simulation results control validated Matlab/Simulink environment followed by detailed analysis.

This paper presents the modeling and control of Double-Fed Induction Generator (DFIG) for 10 KW DFIG application incorporated into a Wind Energy Conversion System (WECS). The objective is to design compare two separate strategies independently controlling active reactive power generated by DFIG, in order conclude on their performances. PI controller sliding mode strategy with maximum point tracking (MPPT) used during energy conversion extract power. simulations results show significant...

In this study, a novel control approach for doubly-fed induction generator (DFIG) is developed and applied to improve the system’s dynamic response performance providing high energy quality while avoiding harmonic accumulations. Because of its ease implementation, field-oriented (FOC) frequently used. This has great sensitivity machine’s parametric variations. For reason, adaptive Backstepping (ABC) capable preserving almost all robustness properties. However, analytical formulation problem....

In this paper, we present a nonlinear robust control of active and reactive power by the use technique Backstepping double-fed asynchronous generator (DFIG) system incorporated in wind. The transfer between stator network is carried out acting on rotor via bidirectional signal converter. A new for wind systems presented. This based an adaptive pole placement approach integrated to system. stability shown using Lyapunov technique. performances robustness DFIG wind-turbine are analyzed...

<p>In this article, we are interested in the improvement of performances Doubly Fed Induction Machine (DFIM) operating motor mode by use direct torque control (DTC). Firstly, focused on modeling DFIM and study principle functioning DTC control. Then, implement Matlab/Simulink environment. Secondly, present simulation results proposed The analysis these shows clearly that system based studied follows perfectly set points, what allowed us to justify efficiency elaborate control.</p>