Problems faced by low wind speed wind power technology

1. Model reliability

The southern region often has more rain, thunder and typhoons, and the meteorological disasters are more serious. In addition, there are many mountains and hills, the terrain is complex, and the turbulence is large. These reasons also put forward higher requirements for the reliability of the unit.

2. Accurate wind measurement

In areas with low wind speed such as the south, due to the characteristics of low wind speed and complex terrain, wind farm projects are often in a critical state of being able to perform. This also puts forward more stringent requirements for wind resource engineers. At present, the wind resource status is mainly obtained in the following ways:

①Wind measurement tower

Setting up towers to measure wind in the area to be developed is one of the most accurate ways to obtain wind resource data. However, many developers are hesitant to set up towers to measure wind in low wind speed areas. It is still debatable whether the low wind speed area can be developed, let alone spending hundreds of thousands of dollars to set up towers to measure the wind in the early stage.

② Acquisition of mesoscale data from the platform

At present, all mainstream machine manufacturers have successively released their own mesoscale meteorological data simulation platforms, with similar functions. It is mainly to look at resources in enclosures and obtain the distribution of wind energy in a certain area. But the uncertainty brought about by mesoscale data cannot be ignored.

③Mesoscale data simulation + short-term radar wind measurement

Mesoscale simulation is inherently uncertain, and radar wind measurement also has certain errors compared with mechanical wind measurement. However, in the process of obtaining wind resources, the two methods can also support each other and reduce the uncertainty of wind resource simulation to a certain extent.