Backup time guarantee method and system for data center energy storage
A technology for data centers and energy storage systems, which is applied in the repair/maintenance of secondary batteries, electrical components, electrochemical generators, etc., and can solve problems such as no control strategy and no energy storage function.
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Embodiment 1
[0045] To ensure the reliability of the backup time of the data center energy storage system, multiple means are required to ensure it simultaneously. First of all, it is necessary to accurately calculate the SOC of the remaining capacity of the battery pack, and at the same time convert it in combination with its SOH, and calculate the SOC for backup power based on the load rate. But usually the battery pack capacity for energy storage has an optimal value, such as 50% DOD, and usually C 备电 +C 储能 soc .
[0046] Secondly, considering the SOC calculation error, the secondary protection is carried out according to the voltage of the battery pack. The battery used for energy storage in the data center is a lead-carbon battery, and the voltage of the battery pack has a certain relationship with the SOC. The voltage value is more intuitive and is used as the second layer of protection, that is, C v .
[0047] Finally, considering unexpected situations such as extreme abnormali...
Embodiment 2
[0078] A backup time guarantee system for data center energy storage, such as image 3 As shown, it includes a voltage acquisition module 100, a first judging module 200, a second judging module 300 and a third judging module 400;
[0079] The voltage acquisition module 100 is used to obtain the working state of the battery pack and the group voltage of the battery pack in real time when the EMS energy storage system is in the energy storage working mode, and obtain the low voltage of the battery pack according to the working state of the battery pack and the group voltage Limit protection capacity;
[0080] The first judging module 200 is used to control the EMS energy storage system to exit the energy storage mode when the battery pack voltage is lower than the voltage value corresponding to the capacity value of the second protective layer, and the battery pack is charged;
[0081] The second judging module 300 is used for judging whether the remaining capacity of the batt...
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