Energy storage system

Abstract

The present invention relates to the field of energy storage technology, in particular to an energy storage system, which includes a battery system, a battery system control unit connected to the battery system, and an energy storage inverter PCS; the battery system includes at least one set of battery modules , the battery module includes a plurality of single cells in series and a battery management system BMS corresponding to the battery module; the battery system control unit is connected to the energy storage inverter PCS; the battery system control unit collects the state parameters of the battery system, Determine the fault type of the battery system according to the state parameters and report the fault type to the energy storage inverter PCS, and the energy storage inverter PCS controls the charging / discharging of the battery system according to the fault type; the present invention can report the fault type, which is beneficial to the user in a timely manner Faults are found and necessary measures are taken. The energy storage inverter PCS can control the charging / discharging of the battery system according to different types of faults, which further improves the safety of the battery system and is beneficial to prolong the service life of the battery system.

Description

technical field [0001] The invention relates to the technical field of energy storage, in particular to an energy storage system. Background technique [0002] With the intensification of the global energy crisis and the deteriorating environment, changes in the energy field are imminent, and new energy power generation methods such as wind and scenery have emerged and gradually developed. [0003] The current home energy storage system has a variety of applications, and MOS is mostly used as switch control. In the case of high current, the burnout protection function is prone to failure, and there is no alarm and no effective measures are taken, resulting in dangers such as combustion and explosion. In addition, the current products and The PCS did not communicate effectively, and did not take safer measures for the battery system when multi-level alarms occurred, resulting in damage to the life and safety performance of the battery itself and eventually led to danger. Mor...

AI Technical Summary

Problems solved by technology

[0003] The current home energy storage system has a variety of applications, and MOS is mostly used as switch control. In the case of high current, the burnout protection function is prone to failure, and there is no alarm and no effective measures are taken, resulting in dangers such as combustion and explosion. In addition, the current products and The PCS did not communicate effectively, and did not take safer measures for the battery system when multi-level alarms occurred, resulting in damage to the life and safety performance of the battery itself, which eventually led to danger.

Moreover, the existing energy storage system is not clear enough in its operating state and after a failure occurs, which is not conducive to the maintenance of the user's use

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