Application and Development of Battery Monitoring Technology
Publish time : 2023-05-25
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Valve-controlled sealed lead-acid batteries have long been the first choice for UPS energy storage，After long-term application, lead-acid battery has the advantages of stable voltage, convenient use and maintenance, and lower early purchase cost than other battery technologies, so it has been widely used。Although now a variety of new battery materials continue to appear, but VRLA battery is still communication, electric power, rail transit, data center and other fields as the main force of backup power。
VRLA battery is claimed to be "maintenance-free", but now there are many battery manufacturers on the market, mixed, uneven quality，And in actual use, because of the deterioration of the battery itself, the capacity of the battery is constantly declining，Especially in actual use, multiple batteries are usually used in series, which makes the deterioration of the performance of one battery drag down the performance of the whole battery, so that the battery can not reach the designed capacity，Once the power failure, the possibility of accidents will be greatly increased, so the daily monitoring and maintenance of the battery pack is essential, so as to avoid battery failure to the loss of customers.
1. Traditional battery monitoring methods
The following are the most common maintenance methods of the traditional battery：
1.1 Discharging cycle testing
1.2 Monitor battery voltage online or manually
1.3 Measure the internal resistance of the battery manually
The disadvantages of traditional battery maintenance are obvious: it can not monitor the status of battery online in real time; It takes a long time and costs a lot of labor；Some battery packs are not easy to operate manually due to space limitations; The data of each test will vary greatly due to different personnel and instruments. This test method is no longer suitable for the current battery monitoring system needs, instead of online intelligent battery monitoring.
2. Battery on-line monitoring system
Compared with the centralized monitoring mode, the battery parameter acquisition module of the distributed system corresponds to the battery one by one, and the health status of the battery is monitored online 7*24 hours。The acquisition module is fixed on the surface of the battery through a guide rail or Velcro. Since each battery unit is configured with a sensor, the connection line is short, which makes the wiring in field construction very simple。
（1） Accurate collection of key characteristic information of each battery
（2） Accurate analysis and judgment of battery information data
（3） Visually display data results and provide specific maintenance actions
The online battery monitoring system comprehensively analyzes the parameters and status of each battery alarm，In this way, you can determine the fault cause and output maintenance guidance and suggestions, ensuring stable and efficient operation and maintenance，This not only improves operation and maintenance efficiency, but also reduces the manpower and material resources required for maintenance, and reduces the error rate of manual inspection, thus making maintenance easier.
