Charge and discharge test equipment for distributed all-online battery packs

Abstract

The invention provides a piece of charge and discharge test equipment for distributed all-online battery packs. The equipment includes a battery pack online switching device, an MCU unit, a high-frequency DC / DC converter, a working power supply circuit, a driving control circuit, single voltage detection equipment, a current / voltage data acquisition circuit, a remote communication circuit, and a data storage and human-computer interaction circuit. The battery pack online switching device gates an online backup battery pack and connects the online backup battery pack to the two ends of the working power supply circuit, and is further connected in parallel with the high-frequency DC / DC converter. The MCU unit is connected with the high-frequency DC / DC converter, the working power supply circuit, the single voltage detection equipment, the current / voltage data acquisition circuit, the remote communication circuit and the data storage and human-computer interaction circuit. The problem that there is hidden danger to the maintenance and test safety in the whole process of offline discharge operation, power supply and coming back online is solved. The charge and discharge test equipmenthas the advantages of energy saving, simple and safe operation, safe online power supply, automatic online charging and equipotential connection recovery at the end of test, and the like.

Description

【Technical field】 [0001] The invention relates to a maintenance system for a battery pack of a base station, in particular to a charging and discharging test device for a distributed full-line battery pack. 【Background technique】 [0002] In the maintenance and management of the existing wireless base station power backup batteries in the communication industry, due to the large number of wireless base stations, large scale, high maintenance labor intensity, high cost, high risk, heavy maintenance tasks, and energy waste, most of the battery capacity is discharged. The test and maintenance work has not been carried out in place, resulting in the lack of understanding of the actual capacity of the online backup battery pack of the wireless communication base station, and the unclear duration of emergency power supply. Accidents occur and batteries are scrapped in advance. These problems have been plaguing the power maintenance management workers and specific maintenance worke...

AI Technical Summary

Problems solved by technology

[0002] The maintenance and management of the backup battery of the existing wireless base station power supply in the communication industry, due to the large number of wireless base stations, large scale, high maintenance labor intensity, high cost, high risk, heavy maintenance tasks, and waste of energy, most of the battery capacity is discharged The testing and maintenance work has not been put in place, resulting in the ignorance of the actual capacity of the online backup battery pack of the wireless communication base station, and the unclear duration of emergency power supply. Often, the emergency power generation dispatch management cannot be effectively carried out due to the interruption of the mains power supply, which often leads to the interruption of the communication of the wireless base station Accidents occurred, and batteries were scrapped ahead of time. These problems have been plagued by power maintenance and management workers and specific maintenance workers in the entire communication industry.

[0004] Traditionally, intelligent dummy loads are used for off-line test equipment. The entire process of discharge operation, power supply and recovery is carried out in an off-line manner. The backup battery pack supplies power to the user system equipment, causing the user system equipment to be interrupted and causing a major accident

Furthermore, after the battery pack under test is deeply discharged off-line, its terminal voltage is seriously low. If the battery pack under test is directly connected to the system, there will be a large inrush current, which will seriously affect the service life of the battery. Traditional battery maintenance methods have hidden dangers in maintenance and testing safety

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