The invention discloses an intelligent
energy management system of a
power battery pack. The intelligent
energy management system comprises a main controller and a plurality of single battery
intelligent management modules, wherein single batteries in the
power battery pack are divided into a plurality of groups, each group is corresponding to each single battery
intelligent management module and comprises at least one single battery, each single battery
intelligent management module is used for monitoring a state of the single battery in the group, the abnormal single battery (group) is isolated when a monitoring result is abnormal, communication of the
power battery pack is maintained, and the main controller is used for performing
voltage regulation on total output
voltage after control of each single battery intelligent management module and continuously outputting a preset stable current and total
voltage. A failure battery is intelligently and automatically removed on line, the
battery pack is enabled to still continuously and stably output a normal voltage and a normal current when the batteries in the whole group do not exceed a plurality of failure batteries in a certain proportion, so that the reliability and the availability of the power
battery pack within planned
backup time are guaranteed and improved, and the service lifetime of the
battery pack is prolonged.