Aviation power supply battery management system and method thereof

Abstract

Aviation power battery management system and method. The system includes a main control unit, a monitoring subunit and a host computer; the main control unit includes a main controller module, a charge and discharge voltage measurement module, a charge and discharge current measurement module, and overvoltage and overcurrent protection. module, A / D conversion module, contactor module, air pressure acquisition module and isoSPI conversion module; there are multiple monitoring sub-units, including a daughter board control module and a temperature measurement module; the charge and discharge voltage measurement module collects the total charge and discharge voltage , the charge and discharge current measurement module collects the total charge and discharge current, the air pressure acquisition module collects the external atmospheric pressure value in real time, the temperature value of each single battery pack of each temperature measurement module, and each sub-board control module collects the single cell voltage of the corresponding single battery pack value, the controller module implements overvoltage and overcurrent protection based on the collected signals, and estimates the SOC value and SOH value of the aviation power battery. The daughter board control module performs energy balancing control on the single battery.

Description

technical field [0001] The invention belongs to the technical field of battery management, and in particular relates to an aviation power supply battery management system and a method thereof. Background technique [0002] With the continuous development of the aerospace industry, the number of airborne electrical equipment is increasing, and the design of the aviation power battery management system has become the key. The aviation power battery management system is not only a functional system, but also an important safety guarantee system. Due to the continuous development of all-electric aircraft, the importance of aviation power battery systems will also rise to a new level. A good power battery management system not only needs to detect the voltage and current of the battery pack, but also to estimate the state of charge and health of the battery, and the balance of charge and discharge of the battery has also become the focus and difficulty of research. [0003] At ...

AI Technical Summary

Problems solved by technology

[0003] At present, the mainstream power supply battery management system on the market has made a qualitative leap compared with the analog electronic battery management system, but there are still various deficiencies, such as: the accuracy and real-time performance of the measurement need to be improved, the type of measurement data is not perfect, To be connected with the host computer interface to realize the visualization of the battery management system

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