At present, lithium iron phosphate batteries are mostly used in energy storage projects. Compared with the mainstream ternary lithium-ion batteries used in vehicles, lithium iron phosphate batteries have the advantages of lower cost and longer life, and are more suitable for mounting on energy storage systems.
The principle and characteristics of energy storage technology
The energy storage device composed of energy storage components and the grid connection device composed of power electronic devices become the two major parts of the energy storage system. Energy storage devices mainly realize energy storage, release or fast power exchange. The grid access device realizes the two-way transmission and conversion of energy between the energy storage device and the grid, and realizes functions such as power peak regulation, energy optimization, and improvement of power supply reliability and power system stability.
The capacity range of the energy storage system is relatively wide, from tens of kilowatts to hundreds of megawatts; the discharge time span is large, from milliseconds to hours; the application range is wide, throughout the entire power generation, transmission, distribution, and power consumption systems; large-scale The research and application of electric energy storage technology has just started, it is a brand-new subject, and it is also a hot field of research at home and abroad.
The development prospect of energy storage industry
Due to the large distance between my country's energy centers and power load centers, the power system has always followed the development direction of large power grids and large motors, and operates in accordance with the centralized transmission and distribution mode. With the rapid development of renewable energy power generation and social requirements for power quality With continuous improvement, the application prospect of energy storage technology is broad. The key investment areas for smart grids identified by the State Grid Corporation recently include a large number of energy storage applications, such as energy storage technology projects in wind power generation and photovoltaic power generation in the power generation field, energy storage technology in the power distribution field, and electric vehicle charging and discharging technology.
With the continuous advancement of energy storage technology, energy storage technologies with good safety, high efficiency, clean environmental protection, long life, low cost, and high energy density will continue to emerge, which will surely drive the rapid development of the entire power industry chain and create huge economic and social benefits.
