"A storage battery residual capacity estimation method and device" won the national patent

　　Author ：Iflowpower – Fournisseur de centrales électriques portables

Recently, it was learned that the "one storage battery remaining capacity estimation method and device" of China Electricity Tian Ren independently developed by the National Electric Academy of China. The method and apparatus proposed by the invention can accurately perform residual capacity of the energy storage battery, and improve the availability of the energy storage battery under the premise of ensuring the safety of the storage battery. The invention is applicable to the exact estimation of a large-capacity lithium ion battery pack (referred to as "energy storage battery") in the energy storage system, and the algorithm of integral with the open circuit voltage correction is estimated in the energy storage battery.

Electricity high-end and power low end adopts different correction algorithms to maximize the occurrence of overtakeing and overhanging. The remaining capacity estimation device involved is implemented by the MCU structure, and data transmission is performed by the SCI bus and the main MCU to realize the high sample rate of the energy storage battery current, and accurate points. The residual capacity estimation method and apparatus proposed by the invention, with a battery data acquisition unit, a battery data communication unit, and other components, which constitute a complete energy storage battery management system, suitable for different sizes such as micro-network energy storage, wind farm energy storage.

Energy storage system. Its design and functional requirements are designed to ensure the safe and reliable energy storage battery, high efficiency utilization, battery life optimization, especially the technical characteristics of my country's large-capacity lithium-ion batteries, further meet the product characteristics of my country's mainstream battery manufacturer. .