Storage battery online maintenance system based on three-port charging and discharging machine

Abstract

The invention relates to a storage battery online maintenance system based on a three-port charging and discharging machine, which comprises a first battery inspection instrument, a second battery inspection instrument, an alternating current network, the three-port charging and discharging machine and a system monitor, wherein the first battery inspection instrument is connected with a first storage battery pack; the second battery inspection instrument is connected with a second storage battery pack; the alternating current network provides an alternating current for a direct current power supply system; the three-port charging and discharging machine is respectively connected with the first storage battery pack, the second storage battery pack and the alternating current network, provides conditions for online maintenance of the first storage battery pack or the second storage battery pack and outputs discharge capacity of the first storage battery pack or the second storage battery pack to the alternating current network; and when the first storage battery pack or the second storage battery pack meets the online maintenance conditions, the system monitor outputs a maintenance control instruction according to a preset rule to start the three-port charging and discharging machine to carry out online maintenance on the first storage battery pack or the second storage battery pack. According to the scheme, storage batteries can be simply, reliably and automatically maintained on line, and the storage battery online maintenance system is low in cost, flexible and efficient.

Description

technical field [0001] The invention relates to the field of electric power, and more specifically relates to an online storage battery maintenance system based on a three-port charging and discharging machine. Background technique [0002] With the development of science and technology and the improvement of practical application requirements, the reliability requirements of the power system are also continuously increasing. Among them, the battery pack as an energy storage device is essential. When an accident occurs at the AC power supply end of the power system and the AC power is cut off , the battery pack will act as a power output terminal to ensure the normal operation of the electrical equipment on the DC bus and avoid the expansion of the impact of the accident. Therefore, the reliable operation of the battery pack is an important guarantee for the reliable operation of the power system. In view of the importance of the battery pack, in order to ensure the long-te...

AI Technical Summary

Problems solved by technology

In the DC power system of the power system, remote control switches are generally not allowed. Therefore, the operation of these switches requires on-site manual operation by professional maintenance personnel. 10 to 20 hours, the number of battery packs used in the power system is huge, so a large number of professional operators are required, and the labor cost is high

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