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Power cabinet management method and apparatus, and battery management system

  • US 9,882,400 B2
  • Filed: 11/18/2015
  • Issued: 01/30/2018
  • Est. Priority Date: 11/20/2014
  • Status: Active Grant
First Claim
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1. A method for managing battery power storage cabinet by a battery management system (BMS), comprising steps of:

  • automatically detecting and storing, by the BMS, a running state of each battery power cabinet in a battery power cabinet array in real time;

    analyzing, by the BMS, the running state detected in real time, and acquiring information of a faulty battery power cabinet;

    allowing, by the BMS, a detected faulty battery power cabinet to exit from the battery power cabinet array according to the acquired information of the faulty battery power cabinet;

    excluding, by the BMS, parameters of the detected faulty battery power cabinet from parameter calculation of the battery power cabinet array;

    automatically detecting, by the BMS, state of whether the faulty battery power cabinet in real time;

    when it is detected and analyzed that the state of the faulty battery power cabinet returns to normal, adding, by the BMS, the battery power cabinet that returns to normal to the battery power cabinet array; and

    adding, by the BMS, the parameters of the battery power cabinet that returns to normal to the parameter calculation of the battery power cabinet array;

    wherein the step of allowing, by the BMS, a detected faulty battery power cabinet to exit from the battery power cabinet array according to the acquired information of the faulty battery power cabinet, comprises;

    requesting, by the BMS, a power conversion system (PCS) to stop charging and discharging, and to disconnect high voltage of all sub-cabinets;

    requesting, by the BMS, the PCS to output high voltage to battery power cabinets except the faulty battery power cabinet identified; and

    sending, by the BMS, a request to the PCS to restore charging and discharging of the battery power cabinets except the faulty battery power cabinet identified.

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