DEVELOPMENT OF A WIND TURBINE BLADE FOR AREAS WITH LOW WIND SPEED
Abstract
Expanding the possibilities of alternative energy can lead to a significant reduction in the use of traditional energy sources, as well as environmental pollution. Today, alternative energy in different countries is gaining momentum rather unstable. This is due to the possibility of using certain alternative sources, the lack of certain types, the cost of production, installation and commissioning. However, there is a significant expansion of wind energy. Particularly important are the districts, where the wind is often blown up by spinning the wind wheel to the wraps, for which the generator will vibrate electric energy. Prote, wind energy is not excluded and for areas with low wind speed. Winning the minimal susilla, building to bring the wind wheel into operation is already a success. In such areas, for the provision of wrappers of wind turbines sufficient for generating electrical energy, reducers or other extensions are installed to increase the frequency of wrapping the shaft at the output of the reducer, equal to the frequency of wrapping at the input. However, the complex design of the installation leads to increased weight and increased loss for the production of someparts, as well as maintenance installations. Therefore, look for the optimal shape of the blade, creating protection for starting the wind turbine and leveling it to a higher level, which corresponds to the basic shape of the blade is the actual task. This article presents a new shape of wind turbine blade for areas with low wind speeds. The developed blade has the same dimensions compared to the base version, however, due to the change in shape directly on the side it is possible to absorb energy in two directions and concentrate it in the so-called "pocket", which was not the base version. With this arrangement, the number of revolutions of the installation is 17% higher than in the blade made in the basic version. The rate of acceleration of the installation increases, which confirms its effectiveness at the start. Studies conducted with the help of a mini-model of a wind turbine with three forms of blades and a fan provided the same conditions for testing and obtaining not only theoretical but also practical data.
References
2. Hosseinie, R., Roohi, R., Ahmadi, G. (2021). Modeling and analysis of a fully passive swinging sail wind turbine. Wind Energy, 24 (7), pp. 653-671. DOI: 10.1002/we.2595.
3. Akbari, R., Izadian, A. (2021). Modelling and Control of Flywheels Integrated in Wind Turbine Generators. IEEE International Conference on Electro Information Technology, 2021-May, № 9491886, pp. 106-114. DOI: 10.1109/EIT51626.2021.9491886.
4. Jauch, C. (2021). Grid services and stress reduction with a flywheel in the rotor of a wind turbine. Energies, 14 (9), № 2556, DOI: 10.3390/en14092556.
5. Tanasheva, N.K., Bakhtybekova, A.R., Sakipova, S.E., Minkov, L.L., Shuyushbaeva, N.N., Kasimov, A.R. (2021). Numerical simulation of the flow around a wind wheel with rotating cylindrical blades. Eurasian Physical Technical Journal, 18 (1), pp. 51-56. DOI: 10.31489/2021NO1/51-56.
6. Syuhada, A., Maulana, M.I., Syahriza, Sani, M.S.M., Mamat, R. (2020). The potential of wind velocity in the Banda Aceh coast to the ability to generate electrical energy by horizontal axis wind turbines. IOP Conference Series: Materials Science and Engineering, 788 (1), статья № 012082, DOI: 10.1088/1757-899X/788/1/012082.
7. Yang, R., Chen, Y.-J., Sun, X.-Y., Ma, C.-S. (2020) Analysis on the Phenomenon of Power Increase in Dual-wind Turbine under Low Wind Speed [Artcle@低风速下双风轮风力机增功现象分析] Reneng Dongli Gongcheng/Journal of Engineering for Thermal Energy and Power, 35 (9), pp. 134-140. DOI: 10.16146/j.cnki.rndlgc.2020.09.019. (in Chinese).
8. Pytel, K., Gumula, S., Dudek, P., Bielik, S., Szpin, S., Hudy, W., Piaskowska-Silarska, M., Kowalski, M. (2019). Testing the performance characteristics of specific profiles for applications in wind turbines. E3S Web of Conferences, 108, № 01015, DOI: 10.1051/e3sconf/201910801015.
9. Ma, J., Huo, D., Li, X., Duan, Y., Wu, Y., Wang, J. (2019). A study on the optimization method of structural dynamic properties of blades based on concave deformation of airfoil [Artcle@基于翼型凹变的叶片结构动力学性能优化方法研究] Zhendong yu Chongji/Journal of Vibration and Shock, 38 (8), pp. 36-41. DOI: 10.13465/j.cnki.jvs.2019.08.006.(in Chinese).
10. Bel Mabrouk, I., El Hami, A. (2019). Effect of number of blades on the dynamic behavior of a Darrieus turbine geared transmission system. Mechanical Systems and Signal Processing, 121, pp. 562-578. DOI: 10.1016/j.ymssp.2018.11.048.
11. Zhang, L., Zhao, X., Wang, H., Liu, Y. (2018). Study on the Real time and Efficient Adjustment Law for H-Type Vertical Axis Wind Turbine [Article@H型垂直轴风力机实时高效攻角调节方法研究] Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 54 (10), pp. 173-181. DOI: 10.3901/JME.2018.10.173. (in Chinese).
12. Li, Z., Yu, X., Han, R. (2017). Modeling and wake characteristics analysis of a new vertical axis wind generation system. Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017-January, pp. 8590-8595., DOI: 10.1109/IECON.2017.8217509.
13. Recruit M.I., Shevchenko I.A. (2019). Vitroustanovka [Wind generator] (Patent of Ukraine № 134082, 21.04.2019) State Enterprise "Ukrainian Institute of Intellectual Property"(Ukrpatent) URL: https://base.uipv.org/searchINV/search.php?action=viewdetails&IdClaim=258070 (in Ukrainian).
14. Chizhma S. N., Molchanov S. V., Zakharov A. I. (2018). Kriterii vybora tipa vetroustanovok dlya mobil'nykh vetrosolnechnykh elektrostantsiy [Criteria for selecting the type of wind plants for mobile wind-solar power plants] Bulletin of the Baltic Federal University. I. Kant. Ser.: Physical-mathematical and technical sciences. 2018. № 1. С. 53–62. (in Russian).
ISSN 
ISSN 
