►Overview

The CKBM-2000 (BCU) Battery Management Master Control Unit is a control management module designed for energy storage battery management systems. This module manages battery clusters within energy storage battery systems and is typically installed in high-voltage control cabinets of battery clusters. It primarily performs voltage acquisition and current acquisition for battery clusters, aggregates voltage and temperature data of individual battery cells within clusters, calculates battery cluster states such as SOC/SOH, executes balancing strategy decisions and battery fault diagnosis, and implements localized protection and relay control functions for battery clusters based on fault information. The BCU features CAN communication interfaces for data exchange with battery management units and battery array management units. It incorporates insulation monitoring capabilities and state calculation functions for individual SOC/SOH, while also providing redundant CAN communication interfaces, RS-485 communication interfaces, and Ethernet communication interfaces for external device connectivity. As the core module of energy storage battery management systems, the BCU control management module is critical for ensuring the safe, reliable, and efficient operation of energy storage systems.

►Product features

• Supports battery status data processing, aggregates real-time battery data information via CAN to the BMS integrated battery management unit, and manages/controls battery pack/cluster charging/discharging after processing;
• Supports group terminal voltage detection, achieving real-time voltage monitoring through isolated acquisition and processing of group terminal voltage;
• Supports group terminal current detection, utilizing Hall sensors for real-time isolated current acquisition and processing;
• Supports battery system insulation detection function, which can be enabled/disabled according to system configuration requirements;
• Supports SOC/SOH/SOE/SOP estimation, enabling state-of-charge (SOC) and state-of-health (SOH) calculations for individual battery cells and battery packs;
• Supports thermal management control function, which enables active cooling/heating management of battery packs based on battery temperature status, achieving temperature control functions for cooling or heating, thereby prolonging the service life of battery packs;
• Supports fault detection function with threshold alarm capabilities for voltage, current, temperature, SOC, SOH, and circuit cutoff protection function for extreme alarm thresholds;
• Supports data storage function with local storage capability for system operational data;
• Supports CAN, RS-485, and Ethernet communication functions for information exchange;
• Supports system expansion functions including multiple-channel active/passive node outputs, relay control management, and diversified safety control requirements such as effective isolation between high/low voltage circuits;
• Meets application requirements for 1500V Energy Storage System ;

►Technical parameter