Dynamic wind turbine output power reduction under varying wind speed conditions due to inertia

Wind Energy ◽  
2012 ◽  
Vol 16 (4) ◽  
pp. 561-573 ◽  
Author(s):  
Chun Tang ◽  
Wen L. Soong ◽  
Peter Freere ◽  
Mehanathan Pathmanathan ◽  
Nesimi Ertugrul
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Output Power ◽  
Power Reduction ◽  
Turbine Output

scholarly journals Rancang Bangun Turbin Angin Untuk Pembangkit Listrik Tenaga Angin (Sebagai Alternatif Pembangkit Listrik Daerah Pesisir Pantai)

2021 ◽  
Vol 1 (1) ◽  
pp. 38-45
Author(s):  
Wildan Hamdani ◽  
Ahmad Yani ◽  
Toni Hendrawan. R
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Output Power ◽  
Mechanical Energy ◽  
Electrical Power ◽  
Experimental Methods ◽  
Maximum Power ◽  
Wind Speeds ◽  
Working Principle ◽  
Turbine Output

The basic working principle of a wind turbine is to convert mechanical energy from the wind into rotary energy on the blades, the turbine rotation is used to turn a generator to produce electricity. The wind turbine under study is a propeller wind turbine whose axis is placed horizontally. The purpose of this study was to determine the output power produced by the wind turbine. Methods The research was conducted using experimental methods. The results showed that the designed wind turbine was able to produce electrical power at wind speeds of less than 40 m/s, overall based on the research that the maximum power value occurred at 17:00 with a wind speed of 28 m/s the power generated was 0.054 Watt, while the lowest turbine output power occurred at 15:00 with a wind speed of 18 m/s turbine output power of 0.025 Watt.

scholarly journals Design and Contruction of Vertical Axis Wind Turbine Triple-Stage Savonius Type as the Alternative Wind Power Plant

KnE Energy ◽  
2015 ◽  
Vol 2 (2) ◽  
pp. 172
Author(s):  
Tedy Harsanto ◽  
Haryo Dwi Prananto ◽  
Esmar Budi ◽  
Hadi Nasbey
Keyword(s):  
Wind Speed ◽  
Power Plant ◽  
Wind Turbine ◽  
Wind Power ◽  
Output Power ◽  
Vertical Axis ◽  
Wind Power Plant ◽  
Vertical Axis Wind Turbine ◽  
Low Wind Speed ◽  
Simple Materials

<p>A vertical axis wind turbine triple-stage savonius type has been created by using simple materials to generate electricity for the alternative wind power plant. The objective of this research is to design a simple wind turbine which can operate with low wind speed. The turbine was designed by making three savonius rotors and then varied the structure of angle on the three rotors, 0˚, 90˚ and 120˚. The dimension of the three rotors are created equal with each rotor diameter 35 cm and each rotor height 19 cm. The turbine was tested by using blower as the wind sources. Through the measurements obtained the comparisons of output power, rotation of turbine, and the level of efficiency generated by the three variations. The result showed that the turbine with angle of 120˚ operate most optimally because it is able to produce the highest output power and highest rotation of turbine which is 0.346 Watt and 222.7 RPM. </p><p><strong>Keywords</strong>: Output power; savonius turbine; triple-stage; the structure of angle</p>

scholarly journals Maximizing the Output Power of Wind-Driven Grid-Connected Cage Induction Generator through Pole Control

2018 ◽  
Vol 29 (2) ◽  
pp. 39-49
Author(s):  
M. A. Abdel-Halim M. A. Abdel-Halim
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Output Power ◽  
Amplitude Modulation ◽  
Electrical Power ◽  
Mechanical Power ◽  
Induction Generator ◽  
Speed Ratio ◽  
Tip Speed Ratio ◽  
Slip Ring

In this research, a cage induction generator has been linked to the grid and driven with a wind-turbine to generate electrical power. The cage generator has been used in place of the costly slip-ring generator. The performance characteristics of the cage induction generator have been ameliorated through changing its number of poles to comply with the level of the wind speed to maximize the mechanical power extracted from the wind. Pole changing has been achieved employing pole-amplitude modulation technique resulting in three sets of pole numbers. The results proved the feasibility and effectiveness of the suggested method, as the proposed technique led to driving the generator, and consequently the wind-turbine at speeds close or equal to those satisfying the optimum tip-speed ratio which corresponds to the point of maximum mechanical power.

A new hybrid method to forecast wind turbine output power in power systems

2015 ◽  
Vol 28 (4) ◽  
pp. 1503-1508 ◽  
Author(s):  
Soodabeh Soleymani ◽  
Sirus Mohammadi ◽  
Hamid-Reza Rezayi ◽  
Rohalla Moghimai
Keyword(s):  
Power Systems ◽  
Wind Turbine ◽  
Output Power ◽  
Hybrid Method ◽  
Turbine Output

Maximizing Wind Turbine Efficiency by Using Soft Switching Multiple Model Predictive Control

2021 ◽  
Author(s):  
Babak Mehdizadeh Gavgani ◽  
Arash Farnam ◽  
Jeroen D. M. De Kooning ◽  
Guillaume Crevecoeur
Keyword(s):  
Wind Speed ◽  
Model Predictive Control ◽  
Wind Turbine ◽  
Output Power ◽  
Predictive Control ◽  
Linear Models ◽  
Multiple Model ◽  
Maximum Power Point ◽  
Power Point ◽  
Operating Points

Abstract Variable speed small to medium wind turbines need to cope with the intermittent nature of wind speed at lower altitudes. This imposes challenges on optimally tracking the maximum power point (MPP) during partial load and makes the wind turbine dynamics highly nonlinear. As a result, using one linear controller around a specific operating point may not guarantee acceptable performance in the other operating points. In addition, wind speed variations cause fluctuations in the output power of the turbine. The Soft Switching Multiple Model Predictive Control (SSMMPC) technique is introduced to tackle the latter problems when considering multiple linear models around various operating points (MPPs) approximating the nonlinear dynamics. The gap metric method is used to assess how close different linear models are with respect to each other. The closed loop system stability is validated using Lyapunov theory. The controller performance is investigated and compared with a bidirectional TSR-based controller through simulations using the FAST NREL 10kW wind turbine model. The results verify the improvements that can be attained by using SSMMPC in terms of higher maximum power point tracking quality, lower generator torque oscillations and smoother output power, consequently.

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