Aviation power supply battery management system and method thereof

Abstract

An aviation power supply battery management system and a method are disclosed. The system comprises a main control unit, monitoring subunits and an upper computer. The main control unit comprises a main controller module, a charging and discharging voltage measurement module, a charging and discharging current measurement module, an over-voltage and over-current protection module, an A / D conversion module, a contactor module, an air pressure acquisition module and an isoSPI conversion module. There are many monitoring subunits. Each monitoring subunit comprises a daughter board control module and a temperature measurement module. The charging and discharging voltage measurement module collects a charging and discharging total voltage. The charging and discharging current measurement module collects a charging and discharging total current. The air pressure acquisition module collects an outside atmospheric pressure value in real time. Each temperature measurement module measures each temperature value of a single battery pack. Each daughter board control module collects a monomer battery voltage value of the corresponding single battery pack. The controller module realizes overvoltage and over-current protection according to a collected signal and estimates a SOC value and a SOH value of an aviation power supply battery. The daughter board control module carries out energy equalization 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

Images