.

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 bms battery management systemsupports a maximum of 1500V energy storage system.

Topology of BMS ESSFeatures of BMS 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 for 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 BMSof Batteryfor 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:

Collection rate:100ms

Electrical isolation:

+10≤t≤+45 °C, the accuracy ≤5mV;

4149Vdc/2934Vac (8mm)

-40~≤t≤125°C, the accuracy ≤8mV

Cell temperature collection

Collection range: -40~+125°C

Collection resolution:

Collection accuracy:

Collection rate:200ms

-20≤t≤+65°C, the accuracy≤1°C;

-40≤t≤+125°C, the accuracy≤2°C

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 range: 0~1500V

Collection resolution: 0.1V

Collection accuracy:

Collection rate:

Electrical isolation:

collection

Total voltage<1000V (≤±1%FS)

100ms

4149Vdc/2934Vac (8mm)

Total voltage ≥1000V (≤±0.5%FS)

Total current

Collection range: ±1200A

Collection resolution: 0.1A

Module circuit collection accuracy: ±1200A, accuracy ±1%FS

Collection rate:

collection

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:

Collection rate:

-20~+65°C, accuracy≤1°C;

200ms

-40~+125°C, accuracy≤2°C

Monitoring capability

1 RCU module can max. manage 32 BMU modules

SCU Module

Category

Item

Specification

Working environment

Temperature

Operating temperature:

Storage temperature:

-20~+65°C

-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

External expansion TF

storage space: 8G

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:

Storage temperature:

-10~+60°C

-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

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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