Wind energy technology is a high-tech technology that involves more than a
dozen disciplines and majors such as meteorology, aerodynamics, structural
mechanics, computer technology, electronic control technology, materials
science, chemistry, mechanical and electrical engineering, electrical
engineering, and environmental science. Therefore, It is a system technology,
and its difficulty is no less than that of aerospace technology.
1. Division of wind energy technology:
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 have the same working principle, they belong to two
completely different industries: specifically reflected in different policy
orientations, different markets, different application fields, and application
technologies. They are even more different. They belong to two industries in the
same industry. Therefore, large-scale wind power and small and medium-sized wind
power have been distinguished 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 technology, but also opens up
new markets for small and medium-sized wind power.
1. Large-scale wind power technology:
There is still a certain gap between China's large-scale wind power
technology and the international level.
Large-scale wind power technology originated in some European countries
such as Denmark and the Netherlands. Due to the rich local wind energy
resources, the wind power industry has been promoted by the government, and the
development of large-scale wind power technology and equipment is far ahead in
the world. At present, the Chinese government has also begun to promote the
development of large-scale wind power technology and introduced a series of
policies to guide industrial development. Large-scale wind power technology is
designed for large-scale wind turbines, and the application areas of large-scale
wind turbines have very strict environmental requirements. They are used in wind
farms with limited wind energy resources and are subject to various harsh
conditions all year round. Environmental postgraduate entrance examination, the
complex and changeable environment, the high technical requirements have
skyrocketed. At present, domestic large-scale wind power technology is generally
immature, and the core technology of large-scale wind power still relies on
foreign countries. The guidance of national policies has led to domestic wind
power projects being launched in various places like crazy, and all regions hope
to get a share of the pie. The veritable crazy power took advantage of the
policies and started to spread like wildfire. Although wind power projects have
been launched one after another, most of them are supporting types, and there
are very few large-scale wind power system technologies and core technologies
that have completely independent intellectual property rights. It will take
several years for large-scale wind power technology to mature through
environmental testing. In addition, the technology for power generation and grid
connection in large-scale wind power technology is still improving, and a series
of problems are still restricting the development of large-scale wind power
technology.
2. Small and medium-sized wind power technology:
China's small and medium-sized wind power technology is comparable to the
international level.
In the 1970s, small and medium-sized wind power technology has been
developed in Inner Mongolia and Xinjiang, which have relatively good wind
resources in China. Initially, small and medium-sized wind power technology was
widely used in projects to transmit electricity to rural areas to provide
agricultural and animal husbandry services for each household. With the
continuous improvement and development of technology updates, household power
supply can not only be used alone but also complement the photovoltaic
combination and has been widely used in distributed independent power supply. In
recent years, with the steady increase of China's small and medium-sized wind
power exports. Internationally, China's small and medium-sized wind power
technology and wind-solar complementary technology have leapt to a leading
position in the world.
The maturity of small and medium-sized wind power technology is relatively
limited by natural resources. As a distributed independent power generation, the
effect is significant. Not only can it be connected to the grid, but it can also
be combined with photovoltaics to form a more stable and reliable wind and solar
complementary technology. Moreover, the technology is completely domestically
produced. Both in terms of technology and price, it has very competitive
advantages in the world. In addition, the Chinese brand of small and
medium-sized wind power has now become famous in the world. The flowers inside
the wall and the fragrance outside the wall have become more and more popular.
Small and medium-sized wind power generation, which has the most technical
advantages and competitiveness in China, has always been a corner forgotten by
the government and policies. The reason is that in the early days, countries
always positioned small and medium-sized wind power generation for use by
farmers and herdsmen in remote areas such as Inner Mongolia and Xinjiang.
Classified as agricultural machinery, they are low-priced, shoddily
manufactured, have low performance reliability, and are not safe. Most of them
are used in sparsely populated areas. Most of the domestic markets are engaged
in price wars at the expense of reliability; this has formed a poor
understanding in people's subconscious. , so it does not receive national
attention and development.
At present, domestic small and medium-sized wind power technologies such as
low wind speed start-up, low wind speed power generation, variable pitch,
multiple protection and other technologies have attracted the attention of the
international market and unanimously recognized by international customers, and
have taken a leading position in the world. Moreover, small and medium-sized
wind power technology is ultimately designed to meet the terminal market of
distributed independent power supply, rather than the domestic monopoly market
for power generation connected to the grid, as is the case with large-scale wind
power technology. The update speed of technology must adapt to the broad and
rapidly developing market demand.
3. Wind and solar complementary technology:
Wind-solar hybrid technology integrates small and medium-sized wind power
technology and solar energy technology, and combines new technologies in various
application fields. It involves so many fields, has a wide range of
applications, and has great technological differentiation that cannot be
compared with any single technology. of.
Wind energy and solar energy are currently the most technologically mature,
large-scale and industrialized industries in the world in terms of new energy
utilization. Wind energy alone and solar energy alone have their own development
drawbacks, while wind power generation and solar power generation are
complementary. The combination of the two new energy sources achieves the most
reasonable comprehensive utilization of new energy in terms of allocation of
natural resources, integration of technical solutions, and comparison of
performance and price. It not only reduces the unit cost to meet the same
demand, but also achieves the most reasonable comprehensive utilization of new
energy. It also expands the scope of market applications and improves product
reliability.
In addition: solar energy and wind energy are both new energy sources, and
solar energy started much later than wind energy. The price of solar
photovoltaic power generation is about 30 yuan/watt, which is recognized by the
public, and the conversion rate is only about 15%; while the price of small and
medium-sized wind power generation is only For the same conversion rate of
1/5-1/6, it is 60%-80%. Only this low price is even more suppressed. The
environmental pollution caused by the photovoltaic production process is much
greater than that of wind power, but it is lower than that of wind power. Such a
contrast is thought-provoking... From the perspective of people's energy
consumption, which is ultimately to meet the needs of electricity, the cost of
wind energy is much more economical than solar energy when measured in terms of
power generation.
Wind-solar hybrid integration integrates the advantages of solar and wind
energy, not only opens up a new world for energy conservation and emission
reduction, but also applies science to meet human needs, opening a page for the
world to enter the fourth revolution.
2. The development of wind energy technology requires continuous
innovation:
At present, technological innovation in China's wind energy development is
still very weak, and there is a lack of core technologies with independent
intellectual property rights. Therefore, technology must be imported from abroad
to a large extent. Although, in the era of knowledge economy, all countries are
making full use of global resources to narrow the gap and improve
competitiveness through technology introduction and international cooperation.
However, if you do not have the ability to innovate independently, you will not
know what advanced technologies to introduce, and you will not be able to digest
and absorb them after they are introduced, let alone reinnovate. This is on the
one hand; on the other hand, foreign core technologies cannot be introduced, and
must be Rely on independent innovation to master core technologies; furthermore,
domestic independent innovation technologies need policy support, guidance, and
support. Wind energy products with core technologies must increase support, so
that the situation of blooming inside the wall and fragrant outside the wall can
be changed. The driving force for innovation comes from continuous
innovation.
In short: wind energy technology in the wind power industry has been
constantly innovating from single power generation to various fields that
require electricity, and its additional products have also emerged as the times
require: street lights, landscapes, traffic monitoring, communications,
irrigation, planting, breeding, seawater desalination, Fire prevention, alarm,
island and mountain, etc. It can be seen that the development of wind energy, an
emerging industry, can drive the development and transformation of countless
traditional industries, and the application technology of wind energy in various
fields has become the benchmark for the development of these industries. The
world revolution that is about to be triggered will definitely come from the
revolution in new energy industries such as wind energy technology.
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