Advantages of Horizontal Axis Wind Turbine

The traditional small horizontal axis wind turbine (with tail protection) needs to rely on tail folding or yaw of the tail to reduce the speed of the wind turbine when the wind speed is high, so as to play the role of regulating and protecting the wind turbine.

The usual tail working direction is left and right tail folding protection. When the wind speed is high, affected by the tail length, tail area and tail Angle, there will be a slow response phenomenon. After the tail folding protection generator speed is reduced, there will be a slow return phenomenon, which directly leads to the greatly reduced efficiency of wind turbines. The value of wind turbines for wind energy utilization cannot be maximized.

 

At the same time, the tail rod constant folding action, is bound to greatly reduce the mechanical stability of the tail rod, after a certain time will appear the tail rod broken and other damage phenomenon, resulting in machine failure, and even dangerous production.

 

Due to structural reasons, the traditional folding tail horizontal shaft wind turbine cannot be completely sealed, can not overcome water seepage, prevent sand erosion, greatly reduce the level of safety protection. In the practical application of traditional horizontal shaft wind turbine with fold tail, the tail rudder shaft and shaft sleeve will have different degrees of wear, affecting the working point of the tail rudder, and most importantly, the tail rudder will lose its function, burn the generator in strong winds, causing serious damage.

 

After a long time of accurate research and practice verification, our company invented a new working mode of tail structure, applied to horizontal axis wind turbine.

 

As we all know, the working principle of the tail wing comes from aerodynamics. Simply speaking, the impeller of the wind turbine rotates in the wind, the rear of the impeller will form a vortex pressure, and the pressure of the tail rudder plate will automatically rotate according to the pressure size, reducing the windward area of the impeller, so that the wind through the impeller is reduced, and the impeller speed will automatically reach a reasonable speed. Keep the impeller and generator at a good speed to ensure that the generator is running in a high efficiency condition.

 

The wind turbine of this structure is defined as a rotating shaft tail rudder wind turbine. After our company's in-depth research and continuous practice verification, the rotary shaft wind turbine can achieve complete sealing, internal standard bearing, each component connection port using waterproof sealing ring, completely realize the sand, water, salt spray sealing stop.

 

The principle of stern rudder control is earth gravity, and the control of working point will not be affected by time, wear and other factors. It is not easy to change the working point, which greatly improves the reliability. In actual operation, the rotating shaft horizontal shaft wind turbine benefits from the unique technological innovation. The moving part is only the horizontal axis rotation of the stern rudder, and the maximum working Angle is 90°, basically no vibration.

 

This innovation has obtained the national invention patent and utility model patent. Since 2010, the 300w to 10kw horizontal shaft series products are all using this technology. In the years since it was put into the market, there has not been a wind turbine burning machine, wind stall event.

 

Description of Advantages 

1. The structure of the wind wheel is simple, the hub adopts mature pulp structure, no complex moving mechanical devices, maintenance-free, and the failure rate is very low. 

2. All parts are made of conventional national standard parts, accessories can be purchased all over the world. 

3. Use three-phase power transmission slip ring conduction, no twisting cable phenomenon. 

4. The vertical shaft of the rotary body has no rigid driving mechanism, and only conventional bearings are used. This structure can easily resolve the jitter and vibration brought by the unstable air flow, which is conducive to improving the life of the wind turbine. 

5. The efficiency of generator is over 90%, and the utilization coefficient of wind energy is 42%. 

6. Unique simple control mode, automatic windward, effectively improve the efficiency of wind turbine; Make full use of the aerodynamic design, make the wind turbine beyond the safe wind speed automatically deflect the wind wheel 90 degrees, completely do not face the wind, to ensure that the wind turbine operating under the safe wind speed; The stern rudder plate adopts the patented rotating shaft working mode. When the control system fails, it has its own rotating shaft mechanism to ensure that the wind turbine will not be damaged due to high wind speed. At the same time with triple protection mode, completely eliminate the occurrence of failure!

 

This structure is a reasonable scheme summarized by our company for many years, the actual operation results show that this structure is simple and reliable, long service life, greatly reduce the user's use cost, is a better control scheme for wind turbines.