scholarly journals Control of the powerquality for a DFIG powered by multilevel inverters

2020 ◽  
Vol 10 (5) ◽  
pp. 4592
Author(s):  
H. Hachemi ◽  
A. Allali ◽  
B. Belkacem
Keyword(s):  
Vector Control ◽  
Reactive Power ◽  
Control Method ◽  
Simulation Models ◽  
Multilevel Inverters ◽  
Pi Controllers ◽  
Wind Power System ◽  
Stator Flux ◽  
Doubly Fed ◽  
Vector Control Strategy

This paper treats the modeling, and the control of a wind power system based on a doubly fed induction generator DFIG, the stator is directly connected to the grid, while the rotor is powered by multilevel inverters. In order to get a decoupled system of controlfor an independently transits of active and reactive power, a vector control method based on stator flux orientation SFOC is considered: Direct vector control based on PI controllers. Cascaded H-bridge CHBI multilevel inverters are used in the rotor circuit to study its effect on supply power quality. All simulation models are built in MATLAB/Simulink software. Results and waveforms clearly show the effectiveness of vector control strategy. Finally, performances of the system will tested and compared for each levels of inverter.

scholarly journals Comparative study between pi and fuzzy pi controllers for DFIG integrated in variable speed wind turbine

2020 ◽  
Vol 4 (2) ◽  
pp. 8
Author(s):  
Ahmed Hamza Mesai ◽  
A. Bentaallah, Y. Djeriri, A. Mahmoudi .
Keyword(s):  
Vector Control ◽  
Reactive Power ◽  
Doubly Fed Induction Generator ◽  
Variable Speed ◽  
Wind Energy Conversion ◽  
Variable Speed Wind Turbine ◽  
Pi Controllers ◽  
Energy Conversion System ◽  
Stator Flux ◽  
Doubly Fed

This paper presents the contribution of the application of fuzzy logic for the independent control of  the active and reactive power stator of a doubly fed induction generator (DFIG), used in a variable speed wind energy conversion system. So in this work, we are particularly interested in the application of indirect vector control by stator flux orientation to the DFIG, based on fuzzy controllers. These latter surpass the limits of conventional controllers and possess essential characteristics for the improvement of the robustness of the vector control with against parameters variations of the system. The obtained simulation results have shown that it is possible to control the stator powers, even in the presence of parametric variations.

Vector Control of the BDFG for Ship Shaft Standalone Power Generation System

2014 ◽  
Vol 1008-1009 ◽  
pp. 505-509
Author(s):  
Fei Long ◽  
Hong Da Liu ◽  
Nai Jun Shen ◽  
Jin Jun Yin ◽  
Li Hong Li ◽  
...  
Keyword(s):  
Power Generation ◽  
Vector Control ◽  
Control Method ◽  
Dynamic Performance ◽  
Generation System ◽  
Shaft Power ◽  
Power Generation System ◽  
Stator Flux ◽  
Doubly Fed ◽  
Doubly Fed Generator

The Ship Shaft Power Generation System (SSPGS) is widely used in large and medium-sized container ship, and the SSPGS based on brushless doubly-fed generator (BDFG) has the advantages of smaller capacity of the inverter, lower capital operational costs and higher reliability. The proposed vector control method is developed on the power-winding stator flux frame and can be used to control the power winding voltage amplitude and frequency on the standalone mode. The generator model and the control system are developed in Matlab/Simulink. The results show that the control strategy has good dynamic performance when the ship speed and load are changed.

Power Control of DFIG-generators for Wind Turbines Variable-speed

2017 ◽  
Vol 8 (1) ◽  
pp. 444 ◽  
Author(s):  
Ihedrane Yasmine ◽  
El Bekkali Chakib ◽  
Bossoufi Badre
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Induction Generator ◽  
Variable Speed ◽  
Modeling And Control ◽  
Active And Reactive Power ◽  
Wind Power System ◽  
Stator Flux ◽  
Doubly Fed ◽  
And Control

In this paper, we focus on the modeling and control of a wind power system based on a double-fed induction generator DFIG. We proposed a technique of active and reactive power control to improve the performance and dynamics of variable speed wind system. The objective of the modeling is to apply the direct and indirect vector control stator flux orientation to control independently, the active and reactive power generated doubly-fed induction generator (DFIG). The simulation results are tested and compared in order to evaluate the performance of the proposed system.

scholarly journals Advanced Direct Vector Control Method for Optimizing the Operation of a Double-Powered Induction Generator-Based Dual-Rotor Wind Turbine System

Mathematics ◽  
2021 ◽  
Vol 9 (19) ◽  
pp. 2403
Author(s):  
Habib Benbouhenni ◽  
Nicu Bizon
Keyword(s):  
Vector Control ◽  
Pulse Width Modulation ◽  
Reactive Power ◽  
Control Method ◽  
Harmonic Distortion ◽  
Induction Generators ◽  
Wind Turbine System ◽  
The Neural Network ◽  
Doubly Fed ◽  
Variable Wind

The main goal of this paper is to increase the active/reactive power extracted from variable-speed dual-rotor wind power (DRWP) based on doubly-fed induction generators (DFIG) by optimizing its operation using advanced direct vector control. First, the dynamic modeling of different parts of the system is introduced. The DFIG is modeled in the Park reference system. After that, the control techniques are introduced in detail. Direct vector command (DVC) with four-level fuzzy pulse width modulation (FPWM) is used to control the rotor current, thereby controlling the reactive power and active power of the generator. Then, use the neural network design to replace the traditional proportional-integral (PI) controller. Finally, the Matlab/Simulink software is used for simulation to prove the effectiveness of the command strategy using 1.5 MW DRWP. The results show good performance in terms of response time, stability, and precision in following the reference under variable wind speed conditions. In addition, the total harmonic distortion (THD) value of stator current is about 0.13%, being a bit less than other THD values reported in the literature.

Study on Stator-Flux Oriented Vector Control System of Doubly-Fed Machines

2014 ◽  
Vol 643 ◽  
pp. 37-41
Author(s):  
Xue Guang Yang ◽  
Hua Jie Shi ◽  
Lei Zhang
Keyword(s):  
Vector Control ◽  
Control Strategy ◽  
Control Method ◽  
Mathematic Model ◽  
Simulation Results ◽  
Stator Flux ◽  
Doubly Fed ◽  
Vector Control System ◽  
Stator Flux Oriented ◽  
And Control

Based on the stator-flux-oriented vector control method, this paper presents the mathematic model and control strategy of the doubly-fed machines. The system is simulated, and the simulation results verify the correctness of the mode1.

Research of Brushless Doubly-Fed Generator for Grid-Connection and Power Control

2014 ◽  
Vol 678 ◽  
pp. 417-422
Author(s):  
Yu Liu ◽  
Zhong Chao Wei ◽  
Xin Mai Gao ◽  
Xi Chen ◽  
Xue Fan Wang ◽  
...  
Keyword(s):  
Reactive Power ◽  
Control Method ◽  
Electrical Machine ◽  
Voltage Control Strategy ◽  
Grid Connection ◽  
Active And Reactive Power ◽  
Machine Theory ◽  
Doubly Fed ◽  
Doubly Fed Generator ◽  
Doubly Fed Machine

To reliably realize the grid-connection generating of brushless doubly-fed machine (BDFM), this paper firstly focuses on some essential issues, such as amplitude, frequency and phase of power winding voltage; the control of active and reactive power. Deducing the control method of power winding voltage amplitude, frequency and phase based on basic electrical machine principle. Referring synchronous machine theory, the modulation principle of active and reactive power for BDFM is obtained. Then, the connection progress to grid is researched by setting up the control platform based on DSP. The experimental results show that the amplitude, frequency and phase of power winding voltage are effectively controlled and the active and reactive power could be regulated when adopting the decoupled voltage control strategy. This control method provides a practical realization manner in the application of wind power generation and so on.

scholarly journals Simulation of reactive power regulation of DFIG

2021 ◽  
Vol 233 ◽  
pp. 01025
Author(s):  
Yingfeng Zhu ◽  
Xiaosu Xie ◽  
Dong Yang ◽  
Song Gao ◽  
Weichao Zhang ◽  
...  
Keyword(s):  
Wind Farm ◽  
Reactive Power ◽  
Control Method ◽  
Power Regulation ◽  
Working Principle ◽  
Power Limit ◽  
Doubly Fed ◽  
Grid Side ◽  
Grid Side Converter ◽  
And Control

Doubly fed induction generator (DFIG) wind power generation system is widely used in wind farm all over the world. Reactive power can be generated both in grid-side converter and generator-side converter of DFIG. In this paper, working principle and control method of DFIG are introduced, and the reactive power limit of DFIG is derived, finally reactive power regulation is simulated in Simulink.

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