UPS power lithium battery working principle and maintenance skills analysis

The lithium battery UPS power supply is generally composed of a rectifier, a power battery, an inverter, a static switch and a control system. The online UPS power supply is usually used. The UPS power battery first converts the AC power input from the mains into a regulated DC power supply, supplies the lithium battery and the inverter, and then becomes a stable, pure, high-quality AC power supply through the inverter. It can completely eliminate any power problems that may occur in the input power supply, such as voltage fluctuations, frequency fluctuations, harmonic distortion, and so on. Lithium battery UPS power supply is a constant voltage and constant frequency uninterruptible power supply with an energy storage device and an inverter as an important part. When the mains power is normal, the UPS power supply will stabilize the mains power or stabilize the frequency for the load to use, and at the same time charge the battery in the machine; when the mains power is interrupted, the UPS will immediately within 4-10 milliseconds or within zero interruption time The power of the lithium battery is continuously supplied to the load through inverter conversion, so that the load can maintain normal work, so as to save data and protect the software and hardware of the load from damage. In principle, UPS power battery is a kind of power electronic equipment that integrates digital and analog circuits, automatically controls inverters and maintenance-free energy storage devices; functionally, lithium battery UPS can be used when the mains is abnormal. , To effectively purify the mains; you can also continue to supply power to computers and other equipment at a time when the mains is suddenly interrupted, so that you can have plenty of time to deal with it; from the perspective of use, with the advent of the information society, UPS power supplies are widely used Land use is used in all links from information collection, transmission, resolution, storage to use, and its importance is added with the increasing importance of information use. Lithium battery UPS power supply maintenance skills: ①When the UPS power supply battery system fails, you should first find out the cause, and distinguish whether it is the load or the UPS power system; whether it is the host or the battery pack. Although the lithium battery UPS host has a fault self-checking function, it is opposite to the opposite point, which is very convenient for replacing parts, but to repair the fault point, a lot of decomposition and testing work is still required. In addition, if there is a failure in the self-inspection part, the displayed failure content may be wrong. ②When a battery with reverse voltage, large voltage drop, large pressure difference and acid mist leakage is found in the UPS battery pack, it should be restored and repaired in time by corresponding methods. If it cannot be restored or repaired, it should be replaced, but it cannot be replaced with a different capacity. , The batteries of different performance and different manufacturers are connected together, otherwise it may have an adverse effect on the entire battery pack. ③The fan in the machine will bring dust into the machine to deposit. When the air is humid, it will cause the control of the host to be disordered, causing the host to malfunction, and inaccurate alarms will occur. A large amount of dust will also cause poor heat dissipation of the device. Generally, it should be cleaned thoroughly every quarter. Secondly, when removing dust, check whether the connectors and connectors are loose or not in firm contact. 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: What are the differences between lithium batteries and nickel-cadmium batteries