The high harmonic components of voltage and current of the asynchronous generator with short-circuited rotor winding in small wind and hydroelectric installations
Abstract
Asynchronous generators (AG) with short-circuited rotor winding and capacitive excitation are applied to convert mechanical energy to electrical energy on the turbine shaft of small
wind and hydroelectric installations. An asynchronous generator is a more simple device than the synchronous counterpart, and it has a low cost. However, quality parameters of generated electricity issues, in particular, harmonic components of voltage and current require further study.
There has been analyzed the presence of high harmonic components of voltage and current, and identified the rotor eccentricity of the asynchronous generator.
The descriptions of laboratory stand for the experimental study of the harmonic content of voltage and current have been given in the paper. The processed results of the experimental studies have
been listed in the table. According to the results of experimental studies the quality indicators of electric energy have been determined and then analyzed its compliance with existing standards.
Electric energy quality indicators of the asynchronous generator with short-circuited winding meet the requirements of existing standards and do not limit its use in the small wind and hydroelectric installations.
Author Biographies
Information about the author: doctor of technical sciences majoring in «Renewable Energy Transformation», Head of Hydropower Department of the Institute for Renewable Energy of the National Academy of Sciences of Ukraine.
Education: National Technical University of Ukraine «Kyiv Polytechnic Institute». Has a degree on electric machines and devices.
Research area: alternative energy, energy saving, conversion of renewable energy types and installations based on them, small hydropower.
Contacts: phone /fax +38 (044) 206-28-09 e-mail: hydro@ive.org.ua
chief researcher at Institute for Renewable Energy, National Academy of Sciences of Ukraine.
Education: graduated from the Ukrainian Agricultural Academy in 1977 with the degree of "Electrification of Agriculture".
Area of researches: renewable sources of energy, wind power systems, small capacity wind units, autonomous power systems.
Information about the author: research fellow of Hydropower Engineering Department, Institute of Renewable Energy NAS of Ukraine
Education: National Technical University of Ukraine «Kiev Polytechnic Institute». Specialty: «Electric drive and automation of industrial plants».
Contacts: phone /fax: +38 (044) 206-28-09 e-mail: hydro@ive.org.ua
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