China's revised "Renewable Energy Law" clearly stipulates: Power grid enterprises should strengthen power grid construction, expand the scope of renewable energy power allocation, develop and apply smart grid, energy storage and other technologies, improve grid operation management, and improve the absorption of renewable energy. The ability to provide Internet access for renewable energy generation. This is the first time that China's law explicitly encourages grid companies to join the smart grid construction. The “Renewable Energy Law†encourages the construction of smart grids, which is conducive to more grid enterprises to carry out smart grid planning and construction, so that the capital allocation of China's smart grid construction can reach the expected scale. The construction of smart grid can drive a series of industrial development, and high-power power electronics technology is one of them. Power electronics technology was born in the mid-20th century and is a technology that uses power electronics (such as thyristors, insulated gate bipolar transistors, etc.) to transform and control electrical energy. The energy-saving effect of the technology is 10%~40%, which can effectively reduce the volume of electromechanical equipment, improve the operation efficiency of the equipment, and achieve optimal system. The smart grid aims to achieve reliable, safe, economical and efficient operation of the power grid through a series of advanced technologies such as communication, measurement and control. Therefore, it can be seen from the definition of the two that high-power power electronic technology can effectively meet the characteristics required by the smart grid, and is an important technical basis of the smart grid. From the point of view of the birth of electric energy, the degree of intelligence in power generation, transmission, substation, power distribution, power consumption, and dispatching determines whether the entire power grid is intelligent. Building a smart grid can ensure that clean energy is connected to the Internet as much as possible while ensuring safe and stable operation of the grid. Therefore, intelligent dispatch is very important for building a smart grid. As more clean energy sources are connected to the Internet, eliminating the effects of its unstable characteristics, and the safety and stability of the entire power grid, flexible AC transmission technology is widely used because it can greatly improve transmission efficiency, reduce network loss, and ensure safe operation of the power grid. Intelligent dispatching and flexible AC transmission all require high-power power electronics technology support. In the 1980s, with the development of high-voltage and large-capacity semiconductor power components, the power electronics industry developed a flexible AC transmission technology represented by a static reactive power compensation device and a new ultra-high voltage transmission represented by high-voltage direct current transmission. Technology, electric drive technology represented by high-voltage frequency conversion, synchronous breaking technology represented by intelligent switch, and user power technology represented by static var generator and dynamic voltage restorer, etc. Power electronics technology is the medium for weak electricity control of strong electricity, and is an important way for mechanical and electrical equipment to connect to computers. According to the forecast of developed countries, 95% of the electricity will be used in the future after being processed by power electronics. At the dawn of the green revolution of the power grid, accelerate the development and application of high-power power electronics technology, which can realize the intelligent and solid foundation for China's power grid, strengthen the accumulation of China's new energy industry, and strengthen the country's advanced international power energy utilization. Arm wing. Dc Power Contactor,Contactor Relay,Dc Contactor Relay,Dc Magnetic Contactor NanJing QUANNING electric Co.,Ltd , https://www.quanningtrading.com
April 30, 2023