scholarly journals Matrix Converter Based Maximum Power Extraction through Wind Turbine and Induction Machine

2019 ◽  
Vol 8 (4) ◽  
pp. 4224-4230
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Induction Machine ◽  
Matrix Converter ◽  
Maximum Power ◽  
Induction Generator ◽  
Shaft Speed ◽  
Power Extraction ◽  
Wind Speeds ◽  
Maximum Utility

Wind power extraction has found an expressive growth in the past few years. This work endeavors on maximum utility power generation from wind resource and fulfill the needs of the society. Power extraction is composed of wind turbine (WT), induction machine (IM) and matrix converter (MC) forms a system of wind energy conversion (WECS). The stator and rotor synchronous speed of the IM is controlled by adjusting the frequency using MC for different given wind speeds. As the power accessible from induction generator (IG) is a component of WT shaft speed, so that maximum power is extracted by changing frequency for different wind speeds. MC acts as bridge between the grid and induction generator to confirm purely active generated power injection to the grid and maintains power factor at unity (UPF) at the grid side. To track and extract the maximum power for different wind velocities based on constant voltage/frequency control strategy to regulate the shaft speed of IM accordingly is presented. The effective maximum power generation is supported by simulation results and analysis with respect to WT characteristics is proposed.

scholarly journals Maximum Power Extraction Method for a Doubly-fed Induction Generator Wind Turbine

2018 ◽  
Vol 8 (2) ◽  
pp. 711
Author(s):  
Dinh Chung Phan ◽  
Trung Hieu Trinh
Keyword(s):  
Wind Turbine ◽  
Electric Energy ◽  
Maximum Power ◽  
Energy Output ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Control Laws ◽  
Power Extraction ◽  
Doubly Fed ◽  
Conventional Scheme

This research presents a new scheme to extract the maximal available power from a wind turbine employing a doubly fed induction generator (DFIG). This scheme is developed from the wind turbine’s MPPT-curve. Furthermore, we propose control laws for the rotor and grid side-converters. The stability of the proposed maximum available power method and the control laws are proved mathematically upon Lyapunov’s stability criterion. Their efficiency is tested through the simulations of a DFIG wind turbine in Matlab/Simulink. Simulation results are analyzed and compared with that using a conventional scheme. Thanks to the suggested scheme, the wind turbine can track its maximum power point better and the electric energy output is higher comparing with that using the conventional scheme. Furthermore, by the suggested controllers, the rotor speed and current of the DFIG converged to their desired values. In other words, the wind turbine can achieve stable operations by the suggested control laws.

scholarly journals A brief study on matrix converter for wind mill application

YMER Digital ◽  
2022 ◽  
Vol 21 (01) ◽  
pp. 206-219
Author(s):  
M Devika ◽  
◽  
L Pavithra ◽  
Keyword(s):  
Wind Turbine ◽  
Wind Velocity ◽  
Electronic Device ◽  
Input Power ◽  
Matrix Converter ◽  
Induction Generator ◽  
Shaft Speed ◽  
Constant Frequency ◽  
Power Electronics Converters ◽  
Ac Converters

The wind energy is one of the low qualities because of change in direction and velocity of wind. So, the input power and the frequency will be varied which affects the operation of system. For a prescribed wind velocity, the mechanical power available from the wind turbine is function of shaft speed. The shaft speed is varying due to the change in the wind velocity; thereby change in frequency and voltage is developed at the output of the induction generator. Power electronics converters are used for stabilizing the varying parameters and to obtain a constant frequency of 50Hz. commonly used power electronic device is back-to-back converters or ACDC-AC converters which has many disadvantages like costly, bulky. Through matrix converter, the terminal voltage and frequency of the induction generator can be controlled in such a way that the wind turbine will be operating at a constant frequency of 50 Hertz.

Hub height optimisation of commercial WTGs based on accurate wind resource analysis

2021 ◽  
pp. 0309524X2110227
Author(s):  
Kyle O Roberts ◽  
Nawaz Mahomed
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Wind Power ◽  
Capacity Factor ◽  
Resource Analysis ◽  
Wind Speeds ◽  
Unique Maximum ◽  
Wind Measurements ◽  
Generation Capacity ◽  
Wind Resource

Wind turbine selection and optimal hub height positioning are crucial elements of wind power projects. However, in higher class wind speeds especially, over-exposure of wind turbines can lead to a reduction in power generation capacity. In this study, wind measurements from a met mast were validated according to specifications issued by IRENA and NREL. As a first step, it is shown that commercial WTGs from a database may be matched to the wind class and turbulence intensity. Secondly, a wind turbine selection algorithm, based on maximisation of capacity factor, was implemented across the range of WTGs. The selected WTGs were further exposed to an iterative algorithm using pointwise air density and wind shear coefficients. It is shown that a unique maximum capacity factor, and hence wind power generation, exists for a wind turbine, premised on its eventual over-exposure to the wind resource above a certain hub height.

Design and Analysis of Wind Turbine Blades: Winglet, Tubercle, and Slotted

2013 ◽  
Author(s):  
Alka Gupta ◽  
Abdulrahman Alsultan ◽  
R. S. Amano ◽  
Sourabh Kumar ◽  
Andrew D. Welsh
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Alternative Energy ◽  
Turbine Blades ◽  
Three Dimensional ◽  
Wind Turbine Blade ◽  
Wind Turbine Blades ◽  
Wind Speeds ◽  
Governing Factor

Energy is the heart of today’s civilization and the demand seems to be increasing with our growing population. Alternative energy solutions are the future of energy, whereas the fossil-based fuels are finite and deemed to become extinct. The design of the wind turbine blade is the main governing factor that affects power generation from the wind turbine. Different airfoils, angle of twist and blade dimensions are the parameters that control the efficiency of the wind turbine. This study is aimed at investigating the aerodynamic performance of the wind turbine blade. In the present paper, we discuss innovative blade designs using the NACA 4412 airfoil, comparing them with a straight swept blade. The wake region was measured in the lab with a straight blade. All the results with different designs of blades were compared for their performance. A complete three-dimensional computational analysis was carried out to compare the power generation in each case for different wind speeds. It was found from the numerical analysis that the slotted blade yielded the most power generation among the other blade designs.

scholarly journals Use of the Dual Stator Induction Machine in Photovoltaic - Wind Hybrid Pumping

2021 ◽  
Vol 54 (1) ◽  
pp. 115-124
Author(s):  
Arezki Adjati ◽  
Toufik Rekioua ◽  
Djamila Rekioua
Keyword(s):  
Wind Turbine ◽  
Prior Knowledge ◽  
Flow Rate ◽  
Induction Machine ◽  
Drive System ◽  
Induction Generator ◽  
The Sun ◽  
Water Requirements ◽  
Global System ◽  
Dynamic Head

In this article, a combination of two renewable sources is used to power a pumping station. Indeed, a photovoltaic generator (GPV) and a wind turbine are installed so as to be complementary in the process of filling the water tower similar to an accumulator, before distributing the water by gravity. Prior knowledge of a few quantities, in particular the assessment of water requirements, total dynamic head (TDH) and flow rate is essential for sizing the various components of the pumping chain. The results obtained show that the combination of the energy of the sun with that of the wind ensures a continuity of service; the use of an engine (DSIM) and a double stator induction generator (DSIG) allows degraded mode operation in the event that one or more parts of the drive system are defective. The global system is dimensioned and simulated under Matlab/ Simulink Package.

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