What Are the Different Types of Wind Energy Technology?

Wind power technology is a technology that uses wind energy to generate electricity, mainly relying on manufacturing wind energy generators. Because wind energy is a renewable and environmentally friendly energy source, the development of wind power technology is a major development strategy in many countries today.

Wind power technology

In view of the many netizens who are more interested in the design principle of the new vertical axis wind turbine (H type), here are some design principles and technologies

Now I will explain the technical principle of H-type vertical axis wind turbine in detail:

The technology uses

According to the principle of the H-type wind turbine, the speed of the wind turbine increases faster (the torque rises faster), and the power generation speed of the wind turbine increases accordingly, and the power generation curve becomes full (see the figure below). At the same power, the rated wind speed of the vertical axis wind turbine is smaller than that of the existing horizontal axis wind turbine, and it also generates a large amount of power when running at low wind speeds.

Because this design structure uses the principle of special air hole mechanics, the connection method of the triangle vector method, and the principle of the direct drive structure, the force of the wind wheel is mainly concentrated on the hub, so the wind resistance is strong; The characteristics are also reflected in the impact on the surrounding environment. The characteristics of no noise and low electromagnetic interference during operation make the new vertical axis wind turbine superior.

Structure diagram of vertical axis linear blade permanent magnet generator wind power supply system

Attachment: Comparison of existing vertical axis wind power sources:

The largest number of vertical axis wind power generation system products are produced in Japan (started in 2002), and the United Kingdom, Canada and other countries are also developing. Most of these countries use parallel connecting rods in the design of wind turbines. This method has higher requirements on the generator output shaft, and the structure is relatively complicated, and there are more on-site installation procedures. In addition, from the perspective of mechanics, the greater the power of the H-type vertical axis wind turbine, the longer the blades, the longer the distance between the center point of the parallel rod and the center point of the generator shaft, the worse the wind resistance. Therefore, MUCE adopted It is the triangle vector method, which makes up for some of the shortcomings mentioned above.

Fan blades are the key core of technological progress in wind power

The good design, reliable quality and superior performance of wind turbine components are the determining factors to ensure the normal and stable operation of the unit. The development of China's wind turbine blade industry is accompanied by the development of the wind power industry and the wind power equipment industry. Due to its late start, China's wind turbine blades initially relied on imports to meet market demand. With the joint efforts of domestic enterprises and scientific research institutes, the supply capacity of China's wind turbine blade industry has rapidly increased.

Wind energy technology is divided into large-scale wind power technology and small and medium-sized wind power technology. Although both belong to wind energy technology and work on the same principle, they belong to two completely different industries. The specific manifestations are: different policy directions, different markets, different application fields, and different application technologies, which are completely two industries in the same industry. Therefore, large wind power and small and medium wind power have been separated and treated separately at the China Wind Machinery Industry Conference. In addition, in order to meet the different needs of the market, the extended wind-solar complementary technology not only promotes the development of small and medium-sized wind power technologies, but also opens up new markets for small and medium-sized wind power.

Technological innovation in the development of wind energy in China is still weak and lacks core technologies with independent intellectual property rights. Therefore, to a large extent, technology has to be imported from abroad. Although, in the era of the knowledge economy, all countries are making full use of global resources, narrowing the gap and increasing their competitiveness through technology introduction and international cooperation. However, if we do not have the ability to innovate independently, we will not know what advanced technology to introduce, and we will not be able to digest and absorb it after introduction, let alone innovate. On the other hand, foreign core technologies cannot be introduced, and core technologies must be mastered through independent innovation. Furthermore, domestic independent innovation technologies need to be supported, guided, and supported by policies. Wind energy products with core technologies must be strengthened so that the situation of "flower blooming inside the wall and fragrance outside the wall" can be changed, and the driving force for innovation can come from continuous Innovation. ^[1]

Development and promotion of wind power technology

The IEA Wind Energy Technology Roadmap believes that technological innovation is a key driver for reducing wind energy lifecycle costs. Technological innovation will develop cheap materials with higher strength-to-mass ratio, which will improve the energy capture capability of the wind turbine rotor (especially under low speed, complicated terrain and turbulent conditions), increase the operating time of offshore wind power plants, and reduce operation and maintenance requirements , Extend fan life, etc. In addition, offshore wind power has greater technological breakthrough potential than onshore wind power. ^[2]

The roadmap identifies three key areas in the development of wind energy technology: wind energy resource assessment (including wind energy characteristics and forecasting methods), wind turbine technology, and the supply chain, and gives the required actions and milestones (Table 1). The roadmap also points out that in order to achieve technological milestones, countries are required to increase research and development funding support. Private companies tend to invest in more stable short-term research and development efforts, while the public sector needs to undertake long-term basic research duties, and it needs to increase coordination of research and development and demonstration work. (Especially offshore wind power). ^[2]