Hangzhou Huasu Technology Co., Ltd.

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.

bms for ess1

Topology of BMS for ESS

  • topology of bms for ess 2

Features 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 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


Specification of BMS for ESS_copy20220926

BMU Module
CategoryItemSpecification
Working environmentTemperatureOperating temperature:-20~+65°CStorage temperature:-40~+125°C
Working powerVoltage/Power consumptionRated voltage:9~32Vdc(reverse connection protection)Rated power consumption: 120mW (without load)
CommunicationCANSupport 1-channel non-isolated CANCommunication rate: 250kbs
CollectionCell voltage collectionCollection range: 0~5VCollection resolution: 1mVCollection accuracy:Collection rate:100msElectrical isolation:
+10≤t≤+45 °C, the accuracy ≤5mV;4149Vdc/2934Vac (8mm)
-40~≤t≤125°C, the accuracy ≤8mV

Cell temperature collectionCollection range:  -40~+125°CCollection resolution:Collection accuracy:Collection rate:200ms

0.1°C-20≤t≤+65°C, the accuracy≤1°C;


-40≤t≤+125°C, the accuracy≤2°C

Cell equalizationCell equalization controlSupport 24-channel cell passive equalizationEqualization resistance: 33ΩEqualization temperature rise:≤45°C

RCU Module
CategoryItemSpecification
Working environmentTemperatureOperating temperature:-20~+65°CStorage temperature:-40~+125°C
CommunicationCAN/RS485Support 1 isolated CAN and 1 non-isolated CAN2 isolated RS485
CollectionTotal voltageCollection range: 0~1500VCollection resolution: 0.1VCollection accuracy:Collection rate:Electrical isolation:
collectionTotal voltage <1000V (≤±1%FS)100ms4149Vdc/2934Vac (8mm)

Total voltage ≥1000V (≤±0.5%FS)

Total currentCollection range: ±1200ACollection resolution: 0.1AModule circuit collection accuracy: ±1200A, accuracy ±1%FSCollection rate:
collection200ms
Insulation collectionCollection range: 0~10MΩCollection accuracy: accuracy≤3% (500V~1500V, ≥600KΩ)Collection rate: 60s
(adjust according to the Y capacitance value of the PCS device)
Temperature collectionCollection range: -40~+125°CCollection resolution: 1°CCollection accuracy:Collection rate:
-20~+65°C, accuracy≤1°C;200ms
-40~+125°C, accuracy≤2°C
Monitoring capability1 RCU module can max. manage 32 BMU modules

SCU Module



CategoryItemSpecification



Working environmentTemperatureOperating temperature:-20~+65°CStorage temperature:-40~+125°C



CommunicationLAN communicationCommunication rate: 10M/100MElectrical isolation: 3000Vdc



CAN communicationCommunication rate: 250kbsElectrical isolation: 2500Vdc



RS485 communicationCommunication rate: 9600kbsElectrical isolation: 2500Vdc



RS232 communicationCommunication rate: 9600kbsElectrical isolation: 2500Vdc



StorageData recordOn-board eMMC storage space: 8GExternal expansion TF card storage space: 0~128G



InsulationCommunicationLAN:3000VdcCAN/RS485/RS232:2500Vdc



Monitoring capability1 SCU module can max. manage 30 RCU modules





MM10 Module



CategoryItemSpecification



Working environmentTemperatureOperating temperature:-10~+60°CStorage temperature:-20~+70°C



Working powerVoltage/Power consumptionRated voltage:9~30VdcRated power consumption:10W



CommunicationLAN1 isolated LANCommunication rate:10M/100M



Basic parametermicro USB portSupport 1-channel micro USB for system programming and ADB debugging



Screen10.1 inch displayCapacitive touch screen



StorageData recordeMMC storage space:8GTF card storage space:0~128G



Hardware parameterCPU processorRK3288/4 core frequency 1.6GHz



Run systemAndroid 7.1



GPUARM Mail-T764




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