There are various types of energy storage, among which electrochemical energy storage is a key energy storage method. The electrochemical energy storage system mainly consists of energy storage batteries, inverters, BMS battery management systems and other electrical equipment. The energy storage BMS system is responsible for communicating with the power grid, controlling key parameters such as harmonics and frequency, and realizing information interaction between the PCS and the monitoring system. Then the PCS controller obtains the status information of the battery pack through CAN interface and BMS communication, and is responsible for monitoring each The working status of the single battery, uploading battery-related information and status through communication, prevents the battery from overcharging and over-discharging, and plays an effective protective role.
The energy storage monitoring system is responsible for the interface between the BMS battery management system and the distribution network system. It can accept dispatching instructions and help complete the charge and discharge control of the battery, support for independent off-grid systems, peak shaving and valley filling, and smooth output of new energy generation. For practical applications, BMS plays a vital role in the entire electrochemical energy storage system.
There are a large number of battery clusters in the energy storage system. The battery clusters have balance management and circulation management. The BMS of the energy storage system puts forward higher requirements for interference resistance. The energy storage BMS system is mainly used for the management and control of energy storage batteries, and mainly includes the BAU master control management unit, BCU master control management unit, and BMU slave control management unit. The energy storage BMS system is conducive to extending the service life of the battery, enhancing the stability and balance of the battery, reducing the operation and maintenance cost of the system, and improving the system efficiency. In order to improve the reliability and anti-interference performance of the energy storage system, energy storage harness connections are required.
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