Application prospect of the hottest UHV technology

  • Detail

On March 29, the fourth BRICs leaders' meeting was held in New Delhi, India, attended by Chinese President Hu Jintao, Brazilian president Rousseff, Russian President Medvedev, Indian Prime Minister Manmohan Singh and South African President Zuma. The conference issued the Delhi Declaration, which pointed out that fossil fuel based energy will dominate the energy composition in the foreseeable future. We will develop clean and renewable energy, promote energy efficiency and alternative technologies to meet the economic development and increasing needs of people in all countries, and respond to concerns about climate issues

in fact, the rapid rise of BRICs countries will inevitably bring huge demand for energy and profoundly affect the global energy pattern. China, Russia, India, Brazil and South Africa account for 34% of the world's primary energy output and 33% of the world's energy consumption, playing a decisive role in the world's energy landscape. Cooperation in the field of energy is an important part of BRICs cooperation. BRICs countries have broad prospects for cooperation in energy trade, investment in the field of energy and energy technology exchanges

China, Russia, Brazil, India and South Africa all have the problem that the power center is far away from the load center, so it is necessary to develop long-distance transmission technology, and ultra high voltage (UHV) is one of the most promising new computer software, which enables the automatic completion of testing, data collection, analysis, report output, data storage and recovery. In the world, UHV usually refers to the voltage of 1000kV and above, which has the advantages of large transmission capacity, long transmission distance, low transmission loss and less corridor land occupation. The development of UHV is the key to solve the above problems. In addition, the BRICs countries have become an important force in global climate negotiations. The development of UHV can promote the cross regional and cross-border consumption of clean energy, reduce greenhouse gas emissions, and make greater contributions to the global response to climate change. China has set an example for the BRICs countries to develop and apply UHV technology. Other BRICs countries have the demand and desire to develop UHV technology. Strengthening cooperation in the field of UHV is an important direction of energy cooperation among BRICs countries

China's world leader in UHV technology

China's main energy producing areas are far away from the power load center. 76% of coal resources are distributed in the north and northwest, 80% of hydraulic resources are distributed in the southwest, and the vast majority of land wind energy is distributed in the three northern regions. The demand for energy in the southeast coastal areas mainly depends on coal transportation. Long distance and large-scale coal transportation makes it difficult to balance energy supply and demand, and the tension of coal and electricity transportation occurs repeatedly. The local power balance mode based on long-distance coal transportation brings great pressure to the environment and transportation, and is not conducive to the development of clean energy and energy security

in order to solve the problems caused by excessive coal handling and promote the optimal allocation of energy resources on a larger scale, China has actively developed and applied UHV technology, took the lead in the world in comprehensively mastering the core technology of UHV transmission, and successfully built and safely operated several UHV transmission lines. During the 12th Five Year Plan period, China will also build a three vertical and three horizontal UHV backbone connecting large energy bases and major load centers, forming a large-scale energy allocation pattern of West to East power transmission and north to South power transmission. In the outline of the 12th Five Year Plan, it is proposed to develop UHV and other advanced transmission technologies with large capacity, high efficiency and long distance, and the development of UHV technology is written into the national strategy, which provides a foundation for the development and application of UHV technology in China, and the comprehensive breakthrough of UHV transmission technology in China will also provide a new choice for solving the energy problems of BRICs countries

the transmission of electricity from east to West in Russia requires UHV technology

Russia has a vast territory, spanning the Eurasian continent, rich in coal, oil, and natural gas, biomass, and hydraulic energy resources required for the gas spring experiments of various models, which are mainly distributed in the western belia region east of the Ural Mountains, while the load center is concentrated in parts of Europe west of the Ural Mountains. In the 1980s, the Soviet Union planned to build UHV transmission lines to transmit power from the east to the West. However, after the collapse of the Soviet Union, the national economy deteriorated, power consumption and generation stagnated for a long time, the power supply at the transmission end could not be completed as scheduled, and the UHV transmission line construction plan could not be completed

with the improvement of Russia's domestic economy, the demand for electricity in the western region is increasing, and the supply and demand are becoming increasingly tense. Power shortages have occurred in many places. At present, the Far East power in eastern Russia is still operating independently outside the unified power system, and the rich energy in Siberia cannot be transmitted to the Western load center through transmission. Developing UHV is an inevitable requirement for Russia to optimize the allocation of energy resources

India actively develops and utilizes UHV technology

India's water resources are mainly distributed in the lower reaches of the Yarlung Zangbo River in Northeast India, coal resources are mainly distributed in the eastern region, and India's power load center is distributed in the South and West, so the transmission direction of Indian power is East West transmission and North South transmission, which has a strong demand for cross regional transmission. According to the Research Report of the Indian Electricity Regulatory Commission, in order to meet the requirements of cross regional transmission, 35000 kilometers of UHV transmission lines need to be built in India before 2022

under the guidance and demonstration of the successful operation of UHV AC and DC projects in China, India has begun to build the first 800kV UHV DC transmission line to transmit hydropower from the northeast to the northwest load center. The project is scheduled to be completed in 2015. India has also launched the UHV AC transmission experimental project. After the successful experiment, the UHV AC line from the coal base in the Middle East to the load center in the West will be built. State Grid Corporation of India has visited China many times to inspect the achievements of UHV R & D and application in China, and China and India will further strengthen UHV technology exchange and cooperation

ultra high voltage technology is required for hydropower transmission in Brazil's Amazon River Basin

Brazil is the country with the largest area, the largest population and the largest economic aggregate in South America, and it is also one of the countries with the fastest economic growth in the world. The 2014 World Cup and the 2016 Olympic Games will be held in Brazil, which will further drive its economic growth. Brazil is the country with the richest freshwater resources in the world and the largest installed hydropower capacity in the world. More than 70% of Brazil's power demand is met by hydropower

the economic center of Brazil is located in the southeast coastal area, and the economic development of the northern Amazon River Basin is relatively backward. With the development of hydropower resources in the southeast region close to the load center tending to be saturated, the northern Amazon River Basin will be the key area of hydropower development in Brazil in the future. The Brazilian government has also introduced a series of incentives to attract domestic and foreign capital to develop hydropower resources in the northern region. After the completion of a series of large hydropower stations in the northern region, new transmission lines are needed for power transmission, and UHV is the best choice. Brazil is working closely with China to build UHV lines to transmit power from hydropower stations in the Amazon River basin to the south

the transnational import of clean energy in South Africa requires UHV technology

the energy structure of South Africa is similar to that of China, showing a pattern of more coal, less oil and less gas. South Africa is rich in coal resources and is the seventh largest coal producer in the world. 27% of its annual coal output is exported to neighboring countries and emerging countries such as China and India; South Africa has insufficient oil and natural gas reserves. 67% of oil consumption depends on imports, and 75% of natural gas consumption depends on imports

corresponding to the energy structure, 90% of South Africa's electricity depends on coal, which has a serious negative impact on South Africa's natural environment and is also the main source of carbon dioxide emissions. The convening of the Durban conference in South Africa in 2011 has strengthened the awareness of South Africans on environmental protection and carbon emission reduction, and the construction of thermal power plants is facing increasing resistance. In the future, South Africa will vigorously develop domestic clean energy and introduce clean energy from other countries. The Congo River Basin in Central Africa is building the world's largest hydropower station, and South Africa and other countries in southern Africa plan to introduce the power of this hydropower station. UHV is undoubtedly the best choice for South Africa to import clean energy across borders

to sum up, the BRICs countries have problems in varying degrees, such as uneven distribution of energy resources, inconsistent economic development level and power distribution, and relatively serious air and water pollution balance in the roasting leaching process with a wide range. UHV technology is undoubtedly the best choice to solve the problem of long-distance power transmission in BRICs countries to alleviate the power shortage in some regions, and it is also an important means to solve the energy transmission problem caused by the uneven distribution of energy resources. Therefore, UHV technology undoubtedly has broad market prospects in BRICs countries. As the power demand level and technology development level, especially the UHV technology development level of BRICs countries are different, strengthening the exchange and cooperation of energy resources, energy and power technology among countries is conducive to improving the energy and power technology level of countries, especially the UHV technology level, accelerating the alleviation of the imbalance between power supply and demand of countries, so as to promote the energy and power supply to better meet the needs of economic development, It is undoubtedly beneficial and necessary to make the economies of all countries develop better and faster. This is what the BRICs leaders hope to see and achieve at the New Delhi meeting. As the Delhi Declaration said: our demand for renewable energy, energy efficiency, energy conservation and environmental protection technologies is increasing. We agree to exchange knowledge, skills, technologies and best practices in order to give full play to our b0.15 complementary advantages in these areas and carry out multilateral energy cooperation under the BRICs framework

therefore, with the implementation of the Delhi Declaration, the energy exchange and cooperation among BRICs countries will be further deepened, and the energy technology exchange and cooperation among countries will also open a new chapter. As a key technology to solve the problem of long-distance power transmission, UHV technology will have a broader application prospect among BRICs countries

Copyright © 2011 JIN SHI