Mathematical simulation of autonomous wind electric installation with magnetoelectric generator

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Authors:


V.M.Golovko, orcid.org/0000-0003-0195-9654, Institute of Renewable Energy of NAS of Ukraine, Kyiv, Ukraine; National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M.Ya.Ostroverkhov, orcid.org/0000-0002-7322-8052, National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M.A.Kovalenko, orcid.org/0000-0002-5602-2001, National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

I.Ya.Kovalenko, orcid.org/0000-0003-1097-2041, National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

D.V.Tsyplenkov, orcid.org/0000-0002-0378-5400, Dnipro University of Technology, Dnipro, Ukraine, email: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2022, (5): 074 - 079

https://doi.org/10.33271/nvngu/2022-5/074



Abstract:



Purpose. Development of a mathematical model of an autonomous wind power plant based on an end-generator with a double stator and combined excitation to evaluate methods for improving the efficiency of conversion of mechanical wind energy into electricity.


Methodology. The research used methods of general theory of wind power plants, methods of mathematical modeling, which are based on the numerical solution of nonlinear differential equations to evaluate methods for correcting the output power in Matlab-Simulink by modifying standard units.


Findings. A numerical simulation mathematical model of an autonomous wind power plant consisting of a magnetoelectric generator with an axial magnetic flux with combined excitation and a double stator has been developed. The model was created to study the parameters and characteristics of the installation, as well as to evaluate methods and means to improve the efficiency of conversion of wind energy into electricity. According to the research, it is established that a more effective method for regulating the output power of the generator in the wind turbine is the use of additional winding for magnetization, compared with the use of additional capacity. The latter provides up to 716% increase in output power, while using the magnetizing winding can increase the output power to 3235%. The results obtained by the authors allow further developing a number of methods to increase the efficiency of conversion of mechanical energy of the wind turbine rotor into electrical energy.


Originality. The mathematical model developed for the first time, in contrast to the existing ones, takes into account the presence of a double stator, an additional winding for magnetization of the magnetic system and the axial nature of the circuit of the main and additional magnetic flux. The developed model also takes into account the change in the parameters of the electric generator with axial magnetic flux when changing the parameters of the wind, the rotor of the wind turbine and the load. The model is designed to analyze the possibility of adjusting the output power of the generator when the wind speed changes.


Practical value. The simulation results indicate the prospects of industrial implementation of wind power plant based on magnetoelectric generator for their use as autonomous electrical installations and as part of shunting power systems.



Keywords: autonomous wind turbine, axial flux generator, double stator, permanent magnets, excitation winding

References.


1. Golovko, V.M., Kokhanevich, V.P., Shikhaylov, M.O., & Kova-lenko, I.Ya. (2019). The influence of the aerodynamic characteristics of the blade profile on the energy characteristics of the wind turbine rotor. Renewable energy, 4(59), 49-55. https://doi.org/10.36296/1819-8058.2019.4(59).49-55.

2. Chumack, V., Bazenov, V., Tymoshchuk, O., Kovalenko, M., Tsyvinskyi, S., Kovalenko, I., & Tkachuk, I. (2021). Voltage stabilization of a controlled autonomous magnetoelectric generator with a magnetic shunt and permanent magnet excitation. Eastern-European Journal of Enterprise Technologies, 6(5(114)), 56-62. https://doi.org/10.15587/1729-4061.2021.246601.

3. Wang, W., Wang, W., Mi, H., Longbo, M., Zhang, G., Liu, H., & Wen, Ya. (2018). Study and Optimal Design of a Direct-Driven Stator Coreless Axial Flux Permanent Magnet Synchronous Generator with Improved Dynamic Performance. Energies, 11(11), 3162-3168. https://doi.org/10.3390/en11113162.

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7. Zhang, Z., Nilssen, R., Muyeen, S. M., Nysveen, A., & Al-Durra,A. (2017). Design Optimization of ironless multi-stage axial-flux permanent magnet generators for offshore wind turbines. Engineering Optimization, 49, 815-827. https://doi.org/10.1080/0305215X.2016.1208191.

8. Perminov, Y.N., Kokhanevich, V.P., & Zinchenko, T.V. (2016). Algorithm for calculation of synchronous generators of an end structure with two magnetic systems located on the ends of the stator for wind power plants. Renewable energy, (2), 45-49.

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10. Kovalenko, I.Ya. (2021). Operation of a synchronous generator with permanent magnets when magnetized by an external capacitor. Renewable energy, (1), 50-58. https://doi.org/10.36296/1819-8058.2021.1(64).50-58.

 

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ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

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