Application of New Type Storage Battery in Indoor Power Distribution System

The application of new batteries in indoor power distribution systems. Since the French physicist Gaston Plante invented rechargeable lead-acid batteries in 1859, with the advent of nickel-cadmium batteries, nickel-hydrogen batteries, lithium batteries and fuel power batteries, many The introduction and application of new information has made great progress in batteries. Each update and improvement of the positive and negative data of the battery or the electrolyte will improve the overall function of the battery. The development direction of the battery has been seeking high capacity, high power, high stability, low pollution, and long life. With the continuous improvement of functions, its application range is also expanding. The miniaturization of electronic equipment has brought new batteries. Batteries can be divided into acid batteries and alkaline batteries according to the properties of the electrolyte. The battery is mainly a lead-acid battery, lead electrode, and the electrolyte is a sulfuric acid solution. Lead-acid batteries have large-capacity, high-reliability, and high-current discharge functions. The use of temperature planning is extensive and cost-effective high-end benefits. Currently, the most widely used secondary battery plan accounts for more than 70% of secondary batteries. The market share of the important use of backup power, electric bicycles and cars began. 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 tends to be highly integrated, intelligent, lightweight and miniaturized. Traditional batteries have gradually shown disadvantages such as large size and high ambient temperature requirements. The specific energy and operating temperature planning of the backup power supply is proposed. Higher requirements. In recent years, the battery family has shown a lot of interest in a new type of battery, among which lithium iron phosphate batteries and fuel power batteries are typical representatives of new types of batteries. The method of self-power supply The indoor distributed system power supply refers to the independent power supply specially 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 equipment (UPS), emergency power supply equipment (EPS), etc. Because electrical equipment allows for different periods of intermittent power supply, the choice of backup power supply is also different. Inverter backup power: The original my country Unicom CDMA network mostly uses inverter backup power. The long-term operation results show that the backup power method of the selected inverter has the disadvantages of low reliability and high protection frequency. If you choose the inverter backup power supply method, you can consider using redundant modular inverter backup power equipment to improve the reliability of all power supplies and reduce the cost of operation protection. UPS power supply: UPS is a power protection device with energy storage equipment. It uses inverter as an important component to output voltage stabilization and frequency stabilization. The advantage of the UPS power plan is that it has a relatively stable backup time, with a short end to AC power at a long interval. UPS has another obvious shortcoming. If the UPS equipment is placed in a user-side computer room with a harsh operating environment (such as a shaft, elevator room, or even basement, etc.), its harsh operating environment and power pollution from public utilities will greatly shorten the operating life of the UPS. Small UPS battery processing capacity is weak, which will reduce battery life; some equipment installed on the rack, in order to reduce the volume of the equipment, many use forced air cooling to feed forward the output power density, the operation process is noisy, and it simply constitutes a complaint from the owner to the station The construction and future operation protection work have increased the difficulty. Wall-mounted switching power supply: A small UPS can be used as a backup power supply, but its output power is generally only about 80%. The whole power supply link composes UPS through ac->dc->ac, the conversion process is large, and the energy consumption loss is large. If a small UPS considers redundant backup, it can only choose dual or multiple parallel backup, and the modular backup redundancy cannot be ended. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.