Generally, I classify wind turbines below 10KW as small wind turbines. Compared with medium-sized and large-scale wind turbines, it has the advantages of small size, flexibility, easy installation, low cost, low requirements on starting wind speed, high cost performance, and complementation with photovoltaic and other power generation devices.
Small wind turbines have not only become the first choice for farmers and herdsmen, but also the first choice for urban construction, urban residents, enterprises and institutions to carry out energy-saving renovation.
Then, in addition to wind resource conditions, power consumption, inverter and battery conditions and how to install, the choice of small wind turbines themselves is the key.
I made a few suggestions for my friends' reference.
1. Wind blade: It is best to use high-strength nylon composite material with high strength, good toughness, anti-UV, anti-corrosion, anti-wind, good aerodynamic performance and unique strong wind stall protection. The mold is die-casted at one time, and the weight error is small.
2, bearing: It is best to import, or domestic first-line brand, such as Japan NSK bearing, work efficiency, wear resistance, durability can be up to 20 years.
3. Magnetic steel: Magnetic steel must be made of rare earth neodymium iron boron permanent magnet, which has high efficiency, light weight, low energy consumption and large output power.
4, anti-strong wind tail design: must have a rudder pre-biased design, automatically and accurately aligned to the wind direction, improve output power while taking into account adjustment and strong wind protection.
5. Carbon brush and brush ring structure: With such a device, the electric power of the wind power generator can be transmitted from the carbon brush to the brush ring, and the brush ring can be electrically extracted; when the wind power generator rotates, it will rotate to prevent the cable from being twisted. .
6, connection: it is best to use the casing connection, high security, no flying phenomenon, the installation industry is very convenient. It is important to know that installing a fan in the field is not only technical but also physical. Easy installation is a boon for the site installer.
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