BMS for ESS

The energy storage battery management system consists of battery pack management unit (BMU module), battery cluster management unit (RCU module), system management unit (SCU module) and system display management unit (MM10 module). This lithium battery management system supports a maximum of 1500V energy storage system.

Features of BMS Battery for ESS

3+1 level structure
Online program upgrade
Support bidirectional IO ports to achieve automatic address coding
Multi-ports environment supervision devices data access

Function of bms ess

Battery information management
Cluster status monitoring
Cluster status analysis
Safety control and protection
Energy control management
Battery maintenance management
Communication port and protocol

Specification of BMS for ESS

BMU Module
Category Item Specification
Working environment Temperature Operating temperature：-20～+65®C Storage temperature：-40～+125®C
Working power Voltage/Power consumption Rated voltage：9～32Vdc（reverse connection protection） Rated power consumption: 120mW (without load)
Communication CAN Support 1-channel non-isolated CAN Communication rate: 250kbs
Collection Cell voltage collection Collection range: 0～5V Collection resolution: 1mV Collection accuracy:
+10≤t≤+45 ®C, the accuracy ≤5mV;
-40~≤t≤125®C, the accuracy ≤8mV Collection rate：100ms Electrical isolation:
4149Vdc/2934Vac (8mm)
Cell temperature collection Collection range:  -40～+125®C Collection resolution：
0.1®C Collection accuracy:
-20≤t≤+65®C, the accuracy≤1®C;
-40≤t≤+125®C, the accuracy≤2®C Collection rate：200ms
Cell equalization Cell equalization control Support 24-channel cell passive equalization Equalization resistance: 33Ω Equalization temperature rise：≤45®C

RCU Module
Category Item Specification
Working environment Temperature Operating temperature：-20～+65®C Storage temperature：-40～+125®C
Communication CAN/RS485 Support 1 isolated CAN and 1 non-isolated CAN 2 isolated RS485
Collection Total voltage
collection Collection range: 0～1500V Collection resolution: 0.1V Collection accuracy:
Total voltage<1000V (≤¯1%FS)
Total voltage ≥1000V (≤¯0.5%FS) Collection rate:
100ms Electrical isolation:
4149Vdc/2934Vac (8mm)
Total current
collection Collection range: ¯1200A Collection resolution: 0.1A Module circuit collection accuracy: ¯1200A, accuracy ¯1%FS Collection rate:
200ms
Insulation collection Collection range: 0～10MΩ Collection accuracy: accuracy≤3% (500V～1500V, ≥600KΩ) Collection rate: 60s
(adjust according to the Y capacitance value of the PCS device)
Temperature collection Collection range: -40～+125®C Collection resolution: 1®C Collection accuracy:
-20～+65®C, accuracy≤1®C;
-40～+125®C, accuracy≤2®C Collection rate:
200ms
Monitoring capability 1 RCU module can max. manage 32 BMU modules

SCU Module
Category Item Specification
Working environment Temperature Operating temperature：
-20～+65®C Storage temperature：
-40～+125®C
Communication LAN communication Communication rate: 10M/100M Electrical isolation: 3000Vdc
CAN communication Communication rate: 250kbs Electrical isolation: 2500Vdc
RS485 communication Communication rate: 9600kbs Electrical isolation: 2500Vdc
RS232 communication Communication rate: 9600kbs Electrical isolation: 2500Vdc
Storage Data record On-board eMMC
storage space: 8G External expansion TF 
card storage space: 0～128G
Insulation Communication LAN：3000Vdc CAN/RS485/RS232：2500Vdc
Monitoring capability 1 SCU module can max. manage 30 RCU modules

MM10 Module
Category Item Specification
Working environment Temperature Operating temperature：
-10～+60®C Storage temperature：
-20～+70®C
Working power Voltage/Power consumption Rated voltage：9～30Vdc Rated power
consumption：10W
Communication LAN 1 isolated LAN Communication rate：
10M/100M
Basic parameter micro USB port Support 1-channel micro USB for system
programming and ADB debugging
Screen 10.1 inch display Capacitive touch screen
Storage Data record eMMC storage space：8G TF card storage space：
0～128G
Hardware parameter CPU processor RK3288/4 core frequency 1.6GHz
Run system Android 7.1
GPU ARM Mail-T764

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