China, a country with a long history and a huge population, has been striving to develop its power engineering in the past decades. Today, China has made remarkable achievements, the most striking of which is the completion of the world’s first plus or minus 1,100 kV high-voltage line.
The completion of this line is not only a great achievement of China power engineering, but also the peak in the history of human power engineering. It is precisely because of the construction of this power project that the electricity consumption of 50 million households in China can be "settled" quickly.
The world’s first plus or minus 1,100 kV high-voltage line spans six provinces in northwest China. This project line starts in Xinjiang and finally reaches Gu Quan, Anhui, with a total length of over 3,300 kilometers. Its completion marks the maturity and breakthrough of China’s UHV technology. UHV technology is a technology that transmits electric energy at ultra-high voltage. Its biggest advantage is that it can reduce the loss in the process of electric energy transmission and improve the efficiency of electric energy transmission.
In the process of building this technology in China, DC transmission is mainly adopted, which can effectively reduce the loss of transmission lines, and at the same time has the advantages of large-capacity transmission and the ability to realize long-distance transportation, which enables power to be transmitted from the western region to the eastern region of China and achieve a large-scale leap.
In the process of UHV line construction, the biggest difficulty is the design and manufacture of converter transformers, which is a very important part of UHV lines. In China, there are 28 converter transformers in the converter stations at both ends of the plus and minus 1100 kV UHV line project. Because it is very difficult to design and manufacture, it needs high technical level and advanced equipment support.
However, with the continuous efforts of researchers in China, the converter transformer with completely independent intellectual property rights has been successfully developed, which provides key technical support for the construction of the world’s first plus or minus 1,100 kV high-voltage line.
The completion of the world’s first plus or minus 1100 kV high-voltage line has brought great value to power transmission in China and even the whole world. First of all, it greatly improves the transmission efficiency of electric energy in the northwest of China and provides strong support for the economic development of this area.
Secondly, it provides a more stable and reliable power supply for families in China. With the development of China’s economy and the improvement of people’s living standards, the demand for electricity is also increasing.
The completion of UHV lines can better meet the electricity demand of families in China and improve the quality of life. The transmission capacity can meet about half of the electricity demand of a moderately developed province in China, and can solve the electricity demand of nearly 50 million households in China.
In addition, the completion of the world’s first plus or minus 1,100 kV high-voltage line has also provided strong support for China’s development in the field of new energy. China is one of the largest new energy markets in the world, and its power generation from new energy sources such as wind power and solar energy is growing rapidly. The completion of UHV lines can better transport these new energy sources to big cities and industrial bases in China, and alleviate the problems of energy shortage and environmental pollution.
For the eastern part of China, many provinces are short of coal and cement resources, so the construction of power stations lacks certain conditions. However, there are a large number of power stations in the western part of China, so China has started the project of transmitting electricity from west to east. This time, China has made great contributions to the construction of this power project, which is the implementation of these projects.
At the same time, the completion of the line has also provided an important impetus for China’s innovation and development in the field of power engineering technology. The research and application of UHV technology not only requires a high level of technology and advanced equipment support, but also requires a lot of investment in capital and human resources. China’s unique UHV technology has the characteristics of low loss, high reliability and low cost. Our successful application in UHV technology has provided important experience and reference for the development of global power engineering technology.
The prospect of UHV application is very valuable, which can further optimize the power grid structure, effectively reduce energy consumption and improve the efficiency of power grid transmission.
In addition, UHV technology can also be used in the clean energy industry, which can play a more extensive role in the use of clean energy in the future. It can achieve large-scale transportation of clean energy, and under the advantage of this technology, it can further promote the development of regional economy and improve the quality of life of residents.
In a word, the completion of the world’s first plus or minus 1,100 kV high-voltage line is a great achievement of China power engineering, and it is also the peak in the history of human power engineering.
Its successful construction will not only provide more stable and reliable power supply for families in China, but also provide strong support for China’s economic development and innovation and development in the field of new energy.
In the future, with the sustained economic development and technological innovation and breakthrough in China, UHV lines will play a more important role, bringing more positive impact on global power transmission and energy structure optimization.