Enhanced Direct Power Control Strategy of a DFIG-Based Wind Energy Conversion System Operating Under Random Conditions

The main objective of this paper is the performances analysis of an Enhanced Direct Power Control (EDPC), applied to Doubly Fed Induction Generator (DFIG) driven by variable speed Wind Turbine (WT). This control strategy uses hysteresis regulators and switching table for active and reactive powers control. These latter are estimated using rotor currents and grid voltages instead of a traditional measurement of stator currents. In addition, the EDPC switching table is based on the position of the rotor flux instead of the stator flux in order to have better regulation accuracy because the rotor voltage vector directly influences the rotor flux and has a proportional relationship with the active and reactive powers. All the operating modes (sub-synchronous, super-synchronous, synchronous and over-speed) of the variable speed WT-DFIG system and the possibility of local reactive power compensation are reported and discussed in this paper. Depending on the operating zone of the WT, Maximum Power Point Tracking (MPPT) technique and pitch angle control are considered to optimize the wind energy efficiency. The validation of the proposed EDPC strategy has been performed through simulation tests under MATALB/Simulink, the obtained results show robustness and good performances with low THD of the generated currents.

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A novel direct power control strategy of three-level NPC rectifier without abnormal instantaneous reactive power fluctuation

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) ◽

10.1109/icpe.2015.7168162 ◽

2015 ◽

Cited By ~ 1

Author(s):

Ning Li ◽

Jingjing Huang ◽

Hui Zhang ◽

Yue Wang ◽

Zhao'an Wang

Keyword(s):

Power Control ◽

Control Strategy ◽

Reactive Power ◽

Direct Power ◽

Power Fluctuation ◽

Direct Power Control ◽

Instantaneous Reactive Power

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A Complete Modeling and Control for Wind Turbine Based of a Doubly Fed Induction Generator using Direct Power Control

International Journal of Power Electronics and Drive Systems (IJPEDS) ◽

10.11591/ijpeds.v8.i4.pp1954-1962 ◽

2017 ◽

Vol 8 (4) ◽

pp. 1954 ◽

Cited By ~ 1

Author(s):

Fawzi Senani

Keyword(s):

Power Control ◽

Wind Turbine ◽

Control Strategy ◽

Reactive Power ◽

Maximum Efficiency ◽

Direct Power ◽

Direct Power Control ◽

Modeling And Control ◽

Doubly Fed ◽

And Control

The paper presents the complete modeling and control strategy of variable speed wind turbine system (WTS) driven doubly fed induction generators (DFIG). A back-to-back converter is employed for the power conversion exchanged between DFIG and grid. The wind turbine is operated at the maximum power point tracking (MPPT) mode its maximum efficiency. Direct power control (DPC) based on selecting of the appropriate rotor voltage vectors and the errors of the active and reactive power, the control strategy of rotor side converter combines the technique of MPPT and direct power control. In the control system of the grid side converter the direct power control has been used to maintain a constant DC-Link voltage, and the reactive power is set to 0. Simulations results using MATLAB/SIMULINK are presented and discussed on a 1.5MW DFIG wind generation system demonstrate the effectiveness of the proposed control.

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Performance analysis and enhancement of direct power control of DFIG based wind system

International Journal of Power Electronics and Drive Systems (IJPEDS) ◽

10.11591/ijpeds.v12.i2.pp1034-1044 ◽

2021 ◽

Vol 12 (2) ◽

pp. 1034

Author(s):

Mohamed Amine Beniss ◽

Hassan El Moussaoui ◽

Tijani Lamhamdi ◽

Hassane El Markhi

Keyword(s):

Power Control ◽

Wind Turbine ◽

Reactive Power ◽

Control Technique ◽

Direct Power ◽

Direct Power Control ◽

Modeling And Control ◽

Point Tracking ◽

Wind Turbine System ◽

Power Point

The paper proposes a complete modeling and control technique of variable speed wind turbine system (WTS) based on the doubly fed induction generator (DFIG). Two levels back-to-back converter is used to ensure the energy transfer between the DFIG rotor and the grid. The wind turbine to operate efficiently, a maximum power point tracking (MPPT) algorithm is implemented. Then, direct power control (DPC) strategy has been combined with the MPPT technique in order to guarantee the selection of the appropriate rotor voltage vectors and to minimize the active and reactive power errors. Finally, the simulation is performed by using MATLAB/simulink platform basing on 7.5KW DFIG wind generation system, and the results prove the effectiveness of our proposed control technique.

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Direct power control strategy based variable speed pumped storage system for the reduction of the wind power fluctuation impact on the grid stability

2018 IEEE 12th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG 2018) ◽

10.1109/cpe.2018.8372526 ◽

2018 ◽

Cited By ~ 2

Author(s):

Bitew Girmaw Teshager ◽

Han Minxiao ◽

Simiyu Patrobers ◽

Zmarrak Wali Khan ◽

Luu Kim Tuan ◽

...

Keyword(s):

Power Control ◽

Wind Power ◽

Control Strategy ◽

Storage System ◽

Variable Speed ◽

Direct Power ◽

Power Fluctuation ◽

Direct Power Control ◽

Pumped Storage

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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 ◽

10.3311/ppee.14166 ◽

2019 ◽

Vol 64 (1) ◽

pp. 87-96

Author(s):

Ibrahim Yaichi ◽

Abdelhafid Semmah ◽

Patrice Wira

Keyword(s):

Wind Energy ◽

Power Control ◽

Maximum Power Point Tracking ◽

Maximum Power ◽

Direct Power ◽

Maximum Power Point ◽

Direct Power Control ◽

Wind Energy Conversion ◽

Wind Energy Conversion Systems ◽

Point Tracking

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.

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Enhancement of the direct power control applied to DFIG-WECS

International Journal of Electrical and Computer Engineering (IJECE) ◽

10.11591/ijece.v10i1.pp35-46 ◽

2020 ◽

Vol 10 (1) ◽

pp. 35 ◽

Cited By ~ 1

Author(s):

Hala Alami Aroussi ◽

Elmostafa Ziani ◽

Manale Bouderbala ◽

Badre Bossoufi

Keyword(s):

Power Control ◽

Reactive Power ◽

Control Method ◽

Estimation Method ◽

Direct Power ◽

Direct Power Control ◽

Point Tracking ◽

Hysteresis Controller ◽

Power Point ◽

Doubly Fed

This work is dedicated to the study of an improved direct control of powers of the doubly fed induction generator (DFIG) incorporated in a wind energy conversion system 'WECS'. The control method adopts direct power control 'DPC' because of its various advantages like the ease of implementation which allows decoupled regulation for active and reactive powers, as well as a good performance at transient and steady state without PI regulators and rotating coordinate transformations. To do this, the modeling of the turbine and generator is performed. Therefore, the Maximum Power Point Tracking (MPPT) technology is implemented to extract optimal power at variable wind speed conditions. Subsequently, an explanation of the said command is spread out as well as the principle of adjusting the active and reactive power according to the desired speed. Then, the estimation method of these two control variables will be presented as well as the adopted switching table of the hysteresis controller model used based on the model of the multilevel inverters. Finally, the robustness of the developed system will be analyzed with validation in Matlab / Simulink environment to illustrate the performance of this command.

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