In addition, for the smart grid, by allocating stored power to meet the peak demand of electricity, the capacity and optimization efficiency of the transmission and distribution system can be increased. At present, the world is affected by the nuclear accident in Japan. Nuclear power has been greatly misunderstood by the environmental protection community. Before the safety concerns are eliminated, new nuclear power will be very cautious. It is precisely because of the development of new energy that energy storage technology can provide backup power in emergency situations and solve power supply problems in remote island areas. Therefore, energy storage technology can be applied in all aspects of power generation, transportation, distribution and use in all parts of the power industry. Regarding which part of the power system should be applied to the most suitable part of the power system and how much benefit it brings to the power system ? The world is studying. The most cutting-edge research is the Institute of Electric Power Research in the United States. Lag. It is reported that the current mainstream energy storage technologies include physical energy storage and electrochemical energy storage. Physical energy storage includes: pumped storage, compressed air, flywheel energy storage and superconducting energy storage, and open cycle gas turbines. Electrochemical energy storage: sodium sulfur battery, vanadium battery, lithium battery, etc. It is understood that compared with electrochemical energy storage technology, other energy storage technologies have obvious disadvantages: pumped storage capacity is limited by geographical location ; compressed air construction period is long, and efficiency is low ; flywheel and superconducting energy storage technology, storage Short-term energy ; open-cycle gas turbines, etc., with large capital investment, low efficiency, and great environmental impact. Therefore, it is the electrochemical energy storage technology that meets the direction of clean energy development in various energy storage technologies. Electrochemical energy storage includes: sodium-sulfur batteries, vanadium batteries and lithium batteries. For grid energy storage applications, especially for wind power storage applications, all-vanadium and sodium-sulfur batteries are two major commercially recognized commercial technologies. The existing global energy storage batteries, 90% of the megawatt projects are sodium-sulfur batteries. In Japan, sodium-sulfur batteries have a commercial scale of nearly 200 megawatts. However, sodium-sulfur batteries have special control requirements for charge and discharge, and need to increase redundancy by 2-3 times. Lithium batteries have limited energy storage time and are only suitable for grid frequency modulation. Therefore, the best performance of the battery capacity and duration is the vanadium battery. Textruded Acrylic Sheet,Patterned Acrylic Sheets,Clear Textured Unbreakable-glass Sheets,Reeded Acrylic Sheet Jiangmen Kunxin new Material Technology Co.,Ltd , https://www.plasticsjmkunxin.com
Why is there an urgent need to develop energy storage technology?
At present, new energy technologies are mainly concentrated on solar energy , wind energy and hydropower. Unlike ordinary thermal power generation, new energy sources have large unpredictable and variable characteristics. For example, wind power: due to the randomness of wind power, direct access to wind power has a great impact on the reliability of the power grid. Therefore, energy storage technology and its The industry is increasingly important for industries that are currently represented by wind and solar industries.