Use of Dual Power Generator for Wind Turbines of Small, Medium and Large Power
DOI:
https://doi.org/10.14529/power170409Keywords:
wind power plants, machine dual power supply, asynchronized synchronous generator, DFIG, wind energyAbstract
The paper considers the relevance of the use of renewable energy sources (RES) in the modern world energy economy, comparative statistics are provided on the share of various energy sources in electricity generation. A particular attention is paid to the use of wind energy as a source for generating electricity, namely, the statistics on the volume and dynamics of the installed capacity of wind power plants (WED) in the world, as well as statistics on the volume and dynamics of the growth of generated electricity with the help of wind turbines in the world. The factors that contributed to the development of the wind power industry in the countries with
the greatest share of the use of wind turbines in the world were analyzed. The design of existing types of wind turbines is described. The main technological problem of wind power engineering is formulated and the way to solve this problem is determined. Different types of generators for wind turbines are considered and advantages and disadvantages of using all the types of electric machines as generating devices in wind turbines are analyzed. The vector of development of the wind turbine in the part of the choice of the generator type is determined. The distinctive features and advantages of using a dual-power machine for windmills in comparison with other types of electric machines are shown. The information on the dual-power generators existing in
the world and domestic industry is provided. A fundamentally new, detailed design of a dual-power machine with a non-contact exciter installed on a single shaft is presented, and the main advantages of this technical solution regarding the traditional design of a double-feed machine that includes a sliding contact are described.
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