The operation data of actual energy storage power station failure is also very few. For levels above the battery pack, only possible fault information can be obtained from the product description of system devices. The extraction of the mapping relationship from symptoms to mechanisms and causes of failure is incomplete.
The current research of battery energy storage system (BESS) fault is fragmentary, which is one of the reasons for low accuracy of fault warning and diagnosis in monitoring and controlling system of BESS. The paper has summarized the possible faults occurred in BESS, sorted out in the aspects of inducement, mechanism and consequence.
There are many failure modes and causes of BESS, including short-time burst and long-term accumulation failure, battery failure and other components failure. At present, the fault monitoring and diagnosis platform of BESS does not have the ability of all-round fault identification and advanced warning.
We review the possible faults occurred in battery energy storage system. The current research of battery energy storage system (BESS) fault is fragmentary, which is one of the reasons for low accuracy of fault warning and diagnosis in monitoring and controlling system of BESS.
They also intend to effect the potential advancements in storage of energy by advancing energy sources. Renewable energy integration and decarbonization of world energy systems are made possible by the use of energy storage technologies.
For modules and battery packs, the failure in pack level mainly depends on thermal runaway propagation, which has been described in Section 4.5. External short circuit of module or battery pack should be paid special attention. External short circuit of large capacity energy storage battery would directly perform thermal runaway.