Abstract
Lithium battery is the first choice for the energy source of explosion-proof electrical equipment because of its small size, light weight and large energy. In order to ensure the safety, improve the battery life and prolong the service life of the lithium battery, it is necessary to study the lithium battery management system. For this reason, the article uses the modular design idea to design a lithium battery intelligent management system. The system takes the microcontroller as the core to control the current voltage signal sampling, power indicator, serial communication and other management functions, and combined with the software process, the implementation of the system control algorithm is described in detail. Finally, combined with the system software and hardware function, and through repeated experiments and continuous improvement and improvement, it can be run safely and stably.
Highlights
The rapid growth of the application portable electronic equipment, the application of lithium battery has opened up a broad prospect, especially for the use of lithium batteries for instruments and meters in coal mines
It is well known that the power use of lithium battery requires the battery series and parallel connection to increase the voltage and capacity, due to the inconsistency of the battery in the battery pack, if one of the batteries has problems, the whole battery cannot continue to work for safety reasons
When the battery appears overcharge, excessive short circuit, temperature over limit and so on, the battery management system will judge according to the abnormal data collected, and send out the state signal, and through the controller to the charge and discharge protection, temperature protection, equalization management circuit and other corresponding control signals, real-time monitoring its use status, timely protection
Summary
The rapid growth of the application portable electronic equipment, the application of lithium battery has opened up a broad prospect, especially for the use of lithium batteries for instruments and meters in coal mines. When the battery appears overcharge, excessive short circuit, temperature over limit and so on, the battery management system will judge according to the abnormal data collected, and send out the state signal, and through the controller to the charge and discharge protection, temperature protection, equalization management circuit and other corresponding control signals, real-time monitoring its use status, timely protection. According to the standards of GB3836-2010 and MT1051-2007 series standards, a lithium battery intelligent management system is designed to meet the safety performance management of lithium ion batteries in coal mine
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