Application of new battery in indoor power distribution system

Application of new batteries in indoor power distribution systems. Since the French physicist Gaston Plante invented rechargeable lead-acid batteries in 1859, nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, and fuel power batteries have come out one after another. New materials The emergence and application of battery has greatly improved battery performance. Every update and improvement of the battery's negative electrode material or electrolyte will improve the overall performance of the battery. The development direction of the battery is the pursuit of large capacity, high power, high stability, low pollution and long life. With the continuous improvement of performance, its application areas continue to expand. The miniaturization of electrical equipment has led to the emergence of new batteries. Batteries can be divided into acid batteries and alkaline batteries according to the properties of the electrolyte. Acid batteries mainly include lead-acid batteries, lead electrodes, and sulfuric acid solution electrolyte. Lead-acid batteries have the advantages of large capacity, high reliability, high-current discharge performance, wide applicable temperature range, and high cost performance. It is currently the most widely used secondary battery, accounting for more than 70% of the secondary battery market share, and is mainly used for backup power supplies, electric bicycles and car starting. Alkaline batteries mainly include cadmium-nickel batteries, iron-nickel batteries, etc., and the electrolyte is sodium hydroxide and potassium hydroxide. It can be used as a DC power supply for automatic control, instrumentation and other electronic equipment. With the continuous development of wireless technology, electrical equipment is often highly integrated, smart, light and miniaturized, and traditional batteries gradually present a large number of disadvantages such as environmental temperature requirements, and higher requirements for specific energy backup power sources and operating temperatures range. In recent years, the battery family has shown some advantages in new batteries. Lithium iron phosphate batteries and fuel power batteries are typical representatives of new batteries. Self-provided power supply The indoor distributed system power supply refers to an independent power supply specifically for the electrical equipment (BBU, RRU, monitoring equipment) of the indoor distributed system. Self-provided backup power supplies generally use self-provided diesel generator sets, battery packs, uninterruptible power supply units (UPS), emergency power supply units (EPS), etc. Since the power supply time of the power equipment is allowed to be interrupted, the choice of backup power supply is also different. Inverter backup power supply: the original my country Unicom (600050, stockbar) CDMA network large number of inverter backup power supplies. Long-term operation results show that the inverter backup power method has the disadvantages of low reliability and high maintenance frequency. If the inverter backup power supply method is adopted, redundant modular inverter backup power supply equipment can be considered to improve the reliability of the overall power supply and reduce operation and maintenance costs. UPS power supply: UPS is a power protection device that includes an energy storage device. It uses an inverter as an important component to output stable voltage and frequency. The advantage of the UPS power method is that the backup time is relatively stable, and it is easy to realize long-distance AC power supply. The shortcomings of UPS are also obvious. If UPS equipment is placed in user-side equipment with harsh operating environment (such as shafts, elevator rooms or even basements, etc.), the operating environment is harsh and urban power pollution will greatly shorten the working life of UPS. Small UPS battery management is weak, which will reduce battery life; for some rack-mounted equipment, in order to reduce the size of the equipment, a large number of forced air cooling is used to increase the output power density. In the course of operation, the noise is relatively loud, which is likely to cause complaints from the owners, which adds to the difficulty of station construction and future operation and maintenance. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: A brief introduction to the specific application of fuel power batteries