In recent years, some European and American developed countries to advocate for and actively develop smart grid, will promote it to the national energy, environment and sustainable economic development to full implementation of a strategic perspective, and trying to invest in smart grid to the recent economic stimulus effect. In the international financial crisis, Obama's economic stimulus plan includes accelerating the development of smart grid. Smart Grid's core values is to improve energy efficiency and reduce greenhouse gas emissions, the use of various high-tech tools to enhance, transmission, distribution, electricity to run all aspects of management, resource conservation, environmental protection, the final price can drop, the majority of usersbenefit.
U.S. Department of Energy Minister and Minister's visit to China that the smart grid is a new development trend of world power, can guide the parties to electricity more efficiently, achieve energy conservation, and hope that both sides can join hands in addressing issues related to cooperation. Current U.S. pushed for smart grid development and experimental work, since this is the Obama administration efforts to promote the formation of a major event. U.S. has released the first batch of smart grid standards.
China's regional differences too, not only in different environments, different lifestyle, and lack of electricity power imbalance, the full realization of smart grid goals, there are still a long journey, so the smart grid development in China must take progressive way forward, there are regional the pilot phase of the country, first solve the electricity and the balance of power shortage, and then solve the more advanced full Technology. [Cable Sales] smart grid requirements of the smart grid of cables, a large-scale projects is to increase urban distribution, rural distribution network construction and transformation efforts, especially in low voltage distribution network to increase the ratio of investment to address the power supply and card neck and other outstanding issues. Thus, low-voltage XLPE insulated power cable will be assigned a larger market share. 10kV and 35kV mobile-type EPR insulated flexible power cable demand will rise. 110kV and 220kV XLPE cable in demand will also increase every year, 500kV XLPE cable, a number of years, will gradually move toward localization. In addition, large-scale offshore wind power construction and grid, shallow 35kV power cables need to support, the numbers are very impressive. China superconducting cable technology matured, but the transmission parameters and the economic effects, has yet to reach a lot to commercial level, the superconducting cable can really kind of application in the smart grid, there is a longer period of time.
1 superconducting cable network in the United States intends to promote the use of smart grid superconducting cable, rather than high voltage transmission technology, the goal is to go beyond the main four time zones to the national grid connection so as to enhance the security and power grid deployment capabilities. As the superconducting transmission voltage is relatively low, compared with the high pressure line, to reduce transmission losses, electromagnetic pollution, take up to a minimum width of the corridor, on behalf of the world's advanced technology direction. New York Long Island Power Authority (LIPA) and American Superconductor Corporation more joint construction of the world's first high temperature superconductor (HTS) cable was April 22, 2008 put into commercial operation. The superconducting power transmission system running at full capacity to meet the 30 million households with electricity demand, only the three 138 kV cable. Compared to the same thickness of copper wire, and their transmission capacity of up to 150 times. While the project cost is expensive, but the new superconductor cable will reduce the cost of four-fifths of the width of the transmission cable channel is only around one meter. Another advantage is that the cable to prevent short circuit caused by the grid fault current. Superconductors have a natural ability to current limit, once the current increase to a certain extent, they will lose their superconductivity and become as common as a conductor resistance, the current decay. Therefore, the technology has also been supported by the U.S. Department of Homeland Security.
(2) application of superconducting Tokamak thermonuclear fusion experimental device (the so-called "artificial sun"), which is the International Thermonuclear Experimental Reactor (ITER) construction project. So far as the world's largest nuclear fusion experimental project, change project needs high temperature superconducting magnets must be provided by the huge magnetic container and, therefore, are the core components of the superconducting cable, "artificial sun" requires a lot of super- lead cable, the application of superior power connection may be ahead of the superconducting applications.
3 Recent applications more recent application of high-temperature superconducting cable, which may include the following areas: urban density residential areas, skyscrapers, etc.; metal smelting equipment, high-current, short, small space applications; high current power stations and substations transmission bus and so on.
China has been suggested that superconducting cable is expected to replace underground cables Bacheng city views. [Cable Sales] 4. Economic and commercial response to the smart grid is becoming the driving engine of the world economy next to China, the smart grid stimulating effect on investment is very large. The World Bank has predicted that by 2020, high-temperature superconducting cable will replace the traditional 80% of the urban underground cables, superconducting cables sales in the world market will reach 30 billion U.S. dollars. Public opinion drives the stock market frenzy, some of the superconducting cable companies intend to invest, its shares have been widely publicized future is bright, and even advocated "Superconductivity is the last virgin land of new energy!" Superconductivity [Amoy stock it] as a great bull stocklowest cost for up to 10 times! many shares to buy from the lower part, still hold after doubling the small, could get five times more than are even scarcer. Some people feel that, in fact, early detection is not a problem Ushimata key, the key is able to hold on in the face of adversity. Of course these are not a technical digression.
China superconducting cable has been studied for some time, in fact, there are a number of areas of national research projects, including Shanghai Electric Cable Research Institute, Shanghai Jiaotong University, Shanghai University and Shanghai Cable Factory collaborative research projects are in progress superconductivity.Integrated fiber optic cable has long been widely used in the railway field, is also possible for the smart grid requirements. Integrated optical structures, in addition to containing fiber cells, but also contains small size power lines, control lines, signal lines, instrumentation lines, data lines and telephone lines. There are no stereotypes in the future smart grid will be in accordance with manufacturing specifications or standards.
- Information from: Electrical Trade Network
