With increasing needs for global green energy, Wind Power can be defined as an environmental protection and sustainable energy, which has been applied in wind power field and been grown in a rapid manner. In the structure of complex and precision in the Wind Power Generation Set, all kinds of electrical and mechanical components can be worked in a cooperative manner for the purpose of ensuring effective power transportation and transformation as well. Especially, Brush Holder serves as a key component in the slip ring system of the generator, playing a non-negligible role in ensuring stable running of the wind generator.
In spite of important roles of Brush Holder in Wind Power, it is also faced with many challenges:
- Centrifugal Force can affect Brush Contact within rapid rotate speed.
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Brush should be regularly replaced for the reason of the wear caused by a long period of running.
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Serve environments (such as offshore wind power) will speed up its aging and corrosion.
Therefore, Wind Industry is constantly updating Brush Holder's Design, including:
● adopt anti-corrosion-and-high-temperature-resistance material (such as stainless steel or engineering plastic)
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Introduce modular construction for the purpose of convenience on-site replacement
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Develop Brushless excitation system as an alternative solution. Currently, in a mass of DFIG Generator, Brush Holder is still irreplaceable.
In spite of small-component of Brush Holder, it is an indispensable part in the electric system of the Wind Power Generator. Because it not only functions as finishing the mission of "the last kilometer" in the period of the current transportation, but also as the important role in system stability, safety and operation and maintenance efficiency. With the development of smart-and-large-scaled Wind Power technology, the design and performance of Brush Holder is continuously updating, laying a solid foundation for high efficient and more stable green energy system.
In the future, under the background of pushing cost decreasing and benefit increasing of wind power, it is important for key components, such as Brush Holder, to be realized delicacy management and technical innovation, regarding as core path for improving full-life-circle values for Wind Power Generator Set.
