Experimental evaluation of generator power correction of an autonomous wind electrical installations

Authors

  • М. А. Kovalenko National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine http://orcid.org/0000-0002-5602-2001
  • I.Y. Kovalenko National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine
  • V.M. Golovko National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine
  • V.V. Chumack National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine
  • V.A. Svyatnenko National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine

DOI:

https://doi.org/10.15588/1607-6761-202-1-1

Keywords:

experimental research, magnetoelectric generator, autonomous wind-electric tanning, output power correction, limits of regulation

Abstract

Purpose. To evaluate the efficiency of regulating the output active power of the magnetoelectric generator as part of an autonomous wind turbine.

Methodology. Analysis of existing methods of adjusting the output parameters of generators. Methods of experimental research of electric generators. Numerical processing methods of the obtained results.

Findings. An experimental stand was developed to study the parameters and characteristics of an autonomous magnetoelectric generator as part of a wind turbine in order to assess the effectiveness of correcting the output power of the generator. Experimental studies of the magnetoelectric generator in the idle mode for two cases are carried out: the characteristic of idling at magnetization with use of a third-party capacity and the idle characteristics when magnetized by an additional winding (with DC supply. In this experiment, the output voltage increases from 26% (at a speed of 200 rpm) to 47% (at a speed of 780 rpm). Studies have shown that the use of the method of correcting the output power by connecting additional capacity to the armature winding of the generator is a less effective method of power control than the use of magnetization by the additional winding. The following studies were conducted: study of the efficiency of the magnetizing winding at constant active load and at different speeds (different wind speeds), study of the efficiency of the magnetizing winding while maintaining a constant voltage at the generator terminals 14.4 V. Depth of the output power regulation depends on the rotation speed of the wind turbine rotor and according to the results of experimental studies, for a load of I = 0.8 A is: 1.4% at 350 rpm; 12.5% ​​at 550 rpm; 15.3% at 650 rpm; 22.12% at 750 rpm. A more efficient method is to use an additional sub-magnetizing winding. A comparative analysis of the initial parameters of the magnetoelectric generator is obtained by experimental studies and numerical modeling simulation. Comparison of modeling results with the results of experimental studies shows the convergence of the obtained results within 7-10%, which confirms the adequacy of the developed models and the reliability of the obtained results.

Originality.  By means of experimental researches of the magnetoelectric generator the limits of output power correction of the generator as a part of the independent wind electric installation are established.

Practical value.  An experimental stand was developed for the study of a magnetoelectric generator with axial magnetic flux to simulate its operation as part of an autonomous wind turbine.

Author Biographies

М. А. Kovalenko , National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

PhD, Associate Professor Department of Electromechanics National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute",

I.Y. Kovalenko, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Graduate Student Department of Renewable Energy Sources, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

V.M. Golovko, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Doctor of Technical Sciences, Professor, Professor of the Department of Renewable Energy Sources of the National Technical University of Ukraine "Kyiv Polytechnic Institute named after Igor Sikorsky" Kyiv

V.V. Chumack, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

PhD, Associate Professor Department of Electromechanics National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

V.A. Svyatnenko, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Senior Lecturer, Department of Theoretical Electrical Engineering, National Technical University of Ukraine, Kyiv Polytechnic Institute named after Igor Sikorsky Kyiv

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Published

2022-03-30

How to Cite

Kovalenko М. А., Kovalenko, I., Golovko, V., Chumack, V., & Svyatnenko, V. (2022). Experimental evaluation of generator power correction of an autonomous wind electrical installations. Electrical Engineering and Power Engineering, (1), 8–18. https://doi.org/10.15588/1607-6761-202-1-1