High-resistance judgment and self-healing control system and method for storage battery pack

The invention provides a high-resistance judgment and self-healing control system and method for a storage battery pack. The system comprises a storage battery monitoring unit, a central control unit and a self-healing control circuit, the storage battery monitoring unit comprises a voltage acquisition circuit, a current load unit, a current acquisition loop and an acquisition control chip; wherein the voltage acquisition circuit is used for acquiring voltage parameters of a tested battery unit end; acquiring current parameters of the current load unit through a current acquisition loop; the acquisition control chip obtains test resistance according to the current parameter and the voltage parameter, and judges whether the tested battery unit is in a high-resistance or open-circuit state; and finally, the central control unit controls the self-healing control circuit to isolate and bridge the tested battery unit which is currently in a high-resistance or open-circuit state from the direct-current bus, so that