The invention provides a high-
low voltage isolated
energy storage battery
management system, and relates to the technical field of
battery management systems or other related fields, the
system comprises a power supply isolation unit, a
high voltage acquisition unit and a communication isolation unit, the power supply isolation unit is used for providing working
voltage for the
high voltage acquisition unit, and the communication isolation unit is used for providing communication
voltage for the
high voltage acquisition unit; the power supply isolation unit comprises a low-
voltage power supply, a first
transformer, a voltage conditioning circuit, a second
transformer, a
diode module and a voltage stabilizer, and the high-voltage acquisition unit is used for acquiring battery cluster information, converting a
signal format of the battery cluster information into a
digital signal and transmitting the battery cluster information to the communication isolation unit; the communication isolation unit is used for transmitting the battery cluster information to the micro-
processing chip, the micro-
processing chip generates a battery cluster control instruction based on the battery cluster information, and the communication isolation unit comprises a third
transformer, a fourth transformer and a bridging
chip. According to the invention, the technical problem that high-voltage and low-voltage isolation cannot be carried out on a high-voltage
energy storage battery
management system in the prior art is solved.