Method and system for monitoring thermal management and fire alarm of lithium battery energy storage system
An energy storage system and fire early warning technology, applied in fire alarms, secondary batteries, secondary battery repair/maintenance, etc.
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Embodiment 1
[0043] figure 1 It is a flowchart of a method for thermal management and fire warning of a lithium battery energy storage system according to a preferred embodiment of the present invention. like figure 1 As shown, the method 100 for monitoring thermal management and fire warning of a lithium battery energy storage system in this preferred embodiment starts from step 101 .
[0044] In step 101, the temperature T and the temperature rise rate S of the lithium battery energy storage system are collected in real time T ;
[0045] In step 102, when Tmin , issue a temperature control command and dissipate heat from the battery, where the Tmin is the preset temperature control lower limit;
[0046] In step 103, when T min ≤Tmax When , an instruction to disconnect the battery grid and temperature control is issued, the energy storage system connected to the grid is disconnected, and the battery is dissipated at the same time, wherein, the T max is the preset temperature control ...
Embodiment 2
[0070] image 3 It is a flowchart of a method for thermal management and fire warning of a lithium battery energy storage system according to another preferred embodiment of the present invention. like image 3 As shown, the method 300 for monitoring thermal management and fire warning of a lithium battery energy storage system described in this preferred embodiment starts from step 301 .
[0071] In step 301, set the temperature control lower limit T min 60°C, temperature control upper limit T max is 150°C, set the upper limit of the temperature rise rate S Tmax 10°C / min, set the vent air pressure threshold P max 1.1-1.3 times the local atmospheric pressure.
[0072] In step 302, the temperature T and the temperature rise rate S of the lithium battery energy storage system are collected in real time T ;
[0073] In step 303, when T<60°C, issue a temperature control command and dissipate heat from the battery;
[0074] In step 304, when 60°C≤T<150°C, issue an instructi...
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