Energy storage system and control method thereof

An energy storage system, comprising:

• a first sensing unit comprising a first temperature sensor and a smoke sensor;
• a second sensing unit comprising at least one of a flammable gas sensor, a second temperature sensor, or a voltage sensor;
• an energy storage system controller;
• a fire suppression system controller;
• a fire extinguishing device;
• and
• one or more batteries;
• wherein the first temperature sensor is configured to:
• detect a temperature value of the energy storage system;
• and
• after detecting that the temperature value exceeds a first temperature threshold, send first alarm information to the fire suppression system controller;
• wherein the smoke sensor is configured to:
• detect a smoke concentration value of the energy storage system;
• and
• after detecting that the smoke concentration value exceeds a smoke concentration threshold, send second alarm information to the fire suppression system controller;
• wherein the second sensing unit is configured to:
• detect a first thermal runaway parameter of the energy storage system;
• and
• send the first thermal runaway parameter to the energy storage system controller;
• wherein the first thermal runaway parameter comprises at least one of the following:
• a first flammable gas concentration of the energy storage system, a first temperature value of the one or more batteries, or a first voltage value of the one or more batteries;
• wherein the energy storage system controller is configured to:
• based on detecting that the first thermal runaway parameter meets a thermal runaway condition, send third alarm information to the fire suppression system controller, and stop energy charging or energy supply of the one or more batteries;
• and
• wherein the fire suppression system controller is configured to:
• based on receiving at least one of the first alarm information, the second alarm information, or the third alarm information, indicate that the fire extinguishing device is to perform a fire extinguishing operation.