An overall Control of BDFIG using Direct Power Control for WECS under Unbalanced Grid Voltage Conditions

Authors

  • A Rahab Laboratoire de l’Electrotechnique de Constantine (LEC) Faculté des Sciences de la Technology University des frères Mentouri de Constantine 1 Ain el-bey 25000 Constantine Algerie.
  • H Benalla Laboratoire de l’Electrotechnique de Constantine (LEC) Faculté des Sciences de la Technology University des frères Mentouri de Constantine 1 Ain el-bey 25000 Constantine Algerie.
  • F Senani Laboratoire de l’Electrotechnique de Constantine (LEC) Faculté des Sciences de la Technology University des frères Mentouri de Constantine 1 Ain el-bey 25000 Constantine Algerie.

DOI:

https://doi.org/10.7324/IJERAT.2018.3198

Keywords:

BDFIG, Back-to-back converter, Cascaded doubly fed induction generator, DPC, Imbalanced voltage, Wind power generation.

Abstract

The paper presents the complete modelling and control strategy of variable speed wind turbine system (WTS) driven brushless doubly fed induction generators (BDFIG). A back-to-back converter is employed for the power conversion exchanged between BDFIG and grid. The wind turbine is operated on the maximum power point tracking (MPPT) mode its maximum efficiency. The control strategy of CW stator side converter (MSC) combines the technique of MPPT and conventional direct power control. In the control system of the grid side converter (GSC) the direct power control based an improved switching table (IST-DPC has been used to maintain a constant DC-Link voltage and the reactive power is set to zero. In addition, the behaviours of BDFIG under unbalanced grid voltage conditions are studied and a power compensation scheme is developed to improve the power quality generation. Simulations results using MATLAB/SIMULINK are presented and discussed on a 3.5 KW BDFIG wind generation system based an cascaded doubly fed induction generator  demonstrate the effectiveness of the proposed control. several advantages, particularly providing sinusoidal line current when the supply voltage is not ideal.

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Published

2018-03-05

How to Cite

An overall Control of BDFIG using Direct Power Control for WECS under Unbalanced Grid Voltage Conditions. (2018). International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695 IJERAT, 4(3), 53-63. https://doi.org/10.7324/IJERAT.2018.3198