Why does UPS bid farewell to batteries?

Most Chinese users may have never heard of flywheels as UPS energy storage equipment. In fact, flywheel energy storage is not a new concept. As early as the 1970s, this technology had sprouted. At that time, people wanted to apply this technology to electric vehicles, but due to the technological level at that time, flywheel energy storage was not popular yet. Until the 1990s, with the further development of circuit topology, magnetic bearing technology, the widespread use of carbon fiber materials, and global attention to battery pollution, flywheel energy storage, environmental protection, and high-efficiency energy storage methods, once again attracted people's attention, useful and effective from the laboratory. sensitive. Active Power was established in 1992, relying on the UPS solution based on flywheel energy storage technology, came into being, and is unique in the power market. Don't compete for the backup Active Power Company's magnetic levitation flywheel energy storage UPS, which integrates magnetic levitation, power electronics, new materials and vacuum technology. There is no friction between the flywheel and the vacuum body, which further reduces the working energy loss. The components of the flywheel are 200-300kg, the diameter is about 90cm, and the speed is 7700 revolutions per minute. The upper and lower bearings serve as supports. The flywheel rotates at high speed and stores energy in the form of kinetic energy. When the system needs electricity, the flywheel decelerates and the motor acts as a generator to release the stored energy. The flywheel can continue to supply power for a few seconds to a few minutes, said Wang Huan, president of Active Power in Greater China. The application of flywheel energy storage technology in UPS will completely subvert people's traditional perception of UPS battery backup time. Due to the durability of the battery, the length of the battery backup time is usually one of the specifications to measure the quality of the battery UPS. The longer the battery standby time, the better the UPS is to show that it can continue to provide power to customers in the event of a power failure. Many UPS manufacturers are proud that their UPS battery backup can last for 10 minutes or even half an hour. But has the user carefully considered the purpose of the UPS to ensure that the power system is safely switched in the event of a power failure, and is still used as a durable power supply? The simple answer is that the UPS should be used as an auxiliary device to ensure the safe switching of the power system. From this perspective, flywheel energy storage UPS can fully meet the needs of users. Natural environment protection Since 2000, magnetically levitation flywheel energy storage UPS has helped customers around the world save more than 200 million kilowatt hours of electricity, reduce the use of more than 1.9 million lead-acid batteries, equivalent to less than 27,000 tons of lead, and reduce more than 800,000 Tons of carbon dioxide emissions, Pan Bai Chiang Kai-shek said, the active force of the chief financial officer. Magnetically suspended flywheel energy storage UPS has the advantages of high efficiency, reliability, and environmental protection. The high power of UPS means more energy saving. Wang said: The power of active UPS can reach 98%, while the power of conventional UPS is only 92-93%. The defective rate of active power UPS is only 1/7 of that of battery UPS. Due to low energy consumption, do not replace batteries, do not add air conditioning ratings, etc., the overall cost of active power UPS is also lower than traditional UPS. In addition, the area of u200bu200bactive power UPS is 75% less than that of traditional UPS, and its life span is 20 years. Most of the defects of UPS are caused by batteries, which have become the most unreliable part of traditional UPS systems. A problem with one battery usually causes the entire battery to fail to work. In order to ensure that there is no problem with the battery, technicians must check or comprehensively monitor the battery in time, which greatly increases the protection cost of UPS. The battery is very sensitive to the temperature of the working environment. When the ambient temperature exceeds 25°C, the battery life will be shortened by 1 year for every 1°C increase. Therefore, the user must equip the battery with a rated air conditioner. Otherwise, in traditional UPS solutions, diesel generators are usually powered by two 12V batteries. In practical applications, diesel generators cannot be started due to battery failures from time to time. An active power UPS can supply safe power support for the diesel generator, ensuring that the diesel engine can start normally. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: Why is the lithium battery power display often inaccurate?