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This paper provides comparative control study of PMSG wind turbine connected to DC load through a DC/DC converter in order to improve the impact on the power system and optimize the power production. The maximum power point tracking (MPPT) algorithms analyzed and compared are: A conventional proportional-integral controller (PI) and two based fuzzy logic controllers (Fuzzy-PI and Adaptive FLC-PI)...
This paper presents the experimental real time implementation of a grid-connection field-oriented control (FOC) for wind turbine based on a doubly fed induction generator (DFIG). A control law is synthesized using a hybrid FOC-Hysteresis Current Controller (HCC) in Rotor side converter (RSC) and the stator is connected to grid via robust PLL (phase locked loop). The regulation is achieved below the...
This paper presents an improved stator active and reactive power control is proposed in wind system (WS) to control doubly fed induction generator (DFIG) in Hyposynchronous mode using maximum power point tracking (MPPT) strategy. A new class of fuzzy logic called an adaptive type-2 fuzzy logic control (T2-FLC) is proposed for wind generation application to control Ird and Irq instead the proportional...
This paper presents a new design of hybrid Petri net sliding mode control (PNSMC) applied to reach the maximum power point tracking (MPPT) of a variable speed wind energy conversion system. To solve the main and major undesired phenomenon faced by conventional sliding mode control, the high frequency oscillations known as chattering, the design of a hybrid controller based on Petri network sliding...
This paper presents a real time simulation of doubly-fed induction generator (DFIG) control for wind turbine generation system (WTGS). A decoupled power control based algorithm is used to drive the whole system. Where two PI controllers are designed in order handle the active and reactive powers, while a third one is employed to keep a same voltage in the DC-Link. In order to verify the whole algorithm,...
This paper proposed switched fractional order controller (SFOC) for grid connected Wind Energy Conversion System. The SFOC consists of conventional PI controller, fractional order IP controller and decision maker. The SFOC controller is applied to control PMSG connected to the grid. The proposed control aims to extract maximum power under fluctuating wind speed. SFOC controller designed to solve the...
This paper focuses to improve wind turbine systems efficiency, in other words, to maximize the output power delivered by the wind turbine. To do this it is necessary to have a good controller. In this study, we use a nonlinear synergetic controller. Synergetic control theory is applied to reach the maximum power point tracking (MPPT) of a variable speed energy conversion system. A comparison with...
In this paper we present a new control strategy of wind turbine, by controlling the pitch angle that must be regulated to capture the maximum of power using PID controller and particle swarm optimization, the problem is to identify the PID controller parameters employing the PSO technique. This study makes a mathematical model, which is used to control the power characteristics of the turbine, a comparison...
This paper deals with the use of the transmission line approach to analyse the transient behaviour of isolated and interconnected grounding systems of wind turbines under lightning discharge. The effects of the soil resistivity as well as the grounding systems interconnection type (cascade and closed) have been studied. As main results, the interconnection leads to a decrease of the impedance and...
This contribution presents the control of the variable speed wind energy conversion systems. It is based on a six-phase symmetrical induction generator combined to a matrix converter. Rotor flux vector control algorithm and a scalar strategy modulated matrix converter are used to control the wind energy conversion system. Characteristics of the matrix converter are used for maximizing the power tracking...
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