Abstract

In this paper, a Direct Power Control (DPC) based on the switching table and Artificial Neural Network-based Maximum Power Point Tracking control for variable speed Wind Energy Conversion Systems (WECS) is proposed. In the context of wind energy exploitation, we are interested in this work to improve the performance of the wind generator by controlling the continuation of the Maximum Power Point Tracking (MPPT) using the Artificial Neural Network (ANN). The results obtained show the interest of such control in this system. The proposed Direct Power Control strategy produces a fast and robust power response, also the grid side is controlled by Direct Power Control based a grid voltage position to ensure a constant DC- link voltage. The THD of the current injected into the electric grid for the Wind Energy Conversion Systems with Direct Power Control is shown in this paper, the THD is lower than the 5 % limit imposed by IEEE STANDARDS ASSOCIATION. This approach Direct Power Control is validated using the Matlab/Simulink software and simulation results can prove the excellent performance of this control as improving power quality and stability of wind turbine.

Highlights

  • The renewable energy market has grown considerably in recent years

  • In the context of wind energy exploitation, we are interested in this work to improve the performance of the wind generator by controlling the continuation of the Maximum Power Point Tracking (MPPT) using the Artificial Neural Network (ANN)

  • The THD of the current injected into the electric grid for the Wind Energy Conversion Systems with Direct Power Control is shown in this paper, the THD is lower than the 5 % limit imposed by IEEE STANDARDS ASSOCIATION

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Summary

Introduction

The renewable energy market has grown considerably in recent years. Intensive consumption of electrical energy, rising hydrocarbon prices and concern for the environment have led several countries to initiate national and international programs to produce electricity from renewable resources [1]. "Control of Doubly Fed Induction Generator with Maximum Power Point Tracking for Variable Speed Wind Energy Conversion Systems", Periodica Polytechnica Electrical Engineering and Computer Science, 64(1), pp. This work aims to study and apply the DPC control technique to control the operation in the optimal conditions of the Wind Energy Conversion System. The goal of this control was to ensure the sampling of sinusoidal currents while guaranteeing a unit power factor with decoupled control of the active and reactive powers. The DPC control makes it possible to obtain high dynamic performances with a simple structure

Description of a Wind Energy Conversion System
The Proportional-Integral controller
Modeling and vector control of the DFIG
Conclusion
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