HEFEI ECOLITE ENERGY CO., LTD.
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Highly Functional Level 3 Architecture System High voltage Battery Management System for BCU Energy Storage
About this products:
The Ecolite Smart BMS Active Balance Home Energy Storage Lithium LFP LifePO4 Battery 8S 24V 16S 48V 100A Management System BMS provides efficient energy storage management for various applications, including home energy storage systems, ensuring optimal battery performance and longevity.
Customizable Options: This product offers customizable board thickness, hole size, line width, and line spacing, catering to specific user requirements, such as those mentioned by a client requesting a tailored solution.
Robust Communication Protocols: The BMS can be supports LAN,USB Interface,CAN communication protocols,
Diagram of Energy storage level 3 Architecture System:
Level 3 battery system architecture:
First level control: BAU centrally manages the various clusters of batteries in the battery array, and communicates with external PCS, UPS, EMS, airconditioning, liquid cooling, fire protection, etc;
Secondary control: BCU1~BCUmmanaging each cluster of batteries collecting cluster battery information, high-voltage control, and uploading cluster information to BAU;
Slave control:BMU1~BMUn, responsible for collecting battery voltage, temperature and other information of the battery module.
| Products | Function configuration | |||||
| BCU | Parameter | Minimum Value | Typical Value | Maximum UnitValue | Description | |
 | Power input | 9 | 24 | 32 | v | |
| Working current | 180 | 125 | 130 | mA | ||
| Rated power | S3 | W | ||||
| CAN BuS | 3 | Channel | 2-wayisolation,1-way non isolation | |||
| 485 Bus | 2 | Channel | 2-way isolation | |||
| LAN interface (TCP/P) | 1 | Channel | ||||
| High edge output | 8+2 | Channel | 2-way support for PWM output | |||
| Switching input detection | 9 | Channel | solaed acise dee prosive detection, 1 -way | |||
| Dry node output | 2 | Channel | Rated 2A, passive output | |||
| Temperature detection | 4 | Channel | +2℃℃,-40~125°℃,supports NTC-10K,100K | |||
| Total voltage detection channel | 3 | Channel | 1 channel supports main and negative relayadhesion detection | |||
| Total voltage detection range | 12 | 1500 | V | Total pressure detection error ≤ 0.3% | ||
| Manage the rated voltage ofthe battery pack | 1500 | V | Rasrocltage ssoy, withstand voltage AC3100+,DC4380+ | |||
| Supports the number of BMU | 40 | PCS | ||||
| Detect the total | 6 | 500 | Strand | Used in | ||
| Number of battery strings | Conjunction with BMU | |||||
| Current detection | 2 | Channel | Supports 1 splitter,1 Hall(supports 5v,12v), and can collect data simultaneously | |||
| Current detection range | -1500 | 1500 | A | Range optional | ||
| Current detection error | 0 | 1 | 1%FSR | A | Typical error 0.5% FSR, maximum error 1% FSR | |
| Insulation testing | 15% | KΩ | 0-200KΩ,error<15KΩ;>200KΩ,eror≤+15% | |||
| BCU automatic addressing | support | lsolation type, level signal addressed | ||||
| SOC estimation error | 0 | 3% | 5% | ≤5% | ||
| SOH estimation accuracy | 0 | 3% | 10% | |||
| SOE estimation accuracy | 0 | 3% | 5% | |||
| Products | Function configuration | |||||
| BAU | Parameter | MinimumValue | TypicalValue | Maximum UnitValue | Description | |
| Power input | 9 | 24 | 32 | v | |
| Working current | 180 | 200 | 220 | mA | ||
| Rated power | ≤5 | W | ||||
| CAN Bus | 4 | Channel | lsolation communication | |||
| 485 Bus | 4 | Channel | lsolation communication | |||
| USB interface | 1 | Channel | Used for external data storage, default 32/64G | |||
| LAN interface (TCP/IP) | 2 | Channel | ||||
| Relay drive output (RL) | 4 | Channel | ||||
| Dry node output (DO) | 4 | Channel | Rated 2A, passive dry node | |||
| Digital Input (DlH) | 2 | Channel | High level detection | |||
| Digital Input (DlL) | 2 | Channel | Low level detection | |||
| Digital signal power input | 1 | Channel | lsolation signal detection power supply | |||
| Supports the number of BCU | 30 | PCS | ||||
| Products | Function configuration | ||||
| BMU | Parameter | BMU16 | BMU32 | BMU48 | BMU64 |
| Working voltage range | 9~32V | |||
| Working voltage range | S50mA(12V)/s25mA(24V) | ||||
| Nominal power | ≤0.6W | ||||
| CAN communication | 1 Channel | ||||
| Number of voltage acquisitionstrings | 16 | 32 | 48 | 64 | |
| Temperature detection point | 4 | 8 | 12 | 16 | |
| Single cell detection range | 0-5000mV; Exceeding the range of -0.5~6V can cause AFE damage | ||||
| Voltage acquisition accuracy | ±5mV | ||||
| Temperature detection accuracy ±2°C | ±2°C | ||||
| Balance function | Support, passive balancing | ||||
| Balanced number of opening routes | Every 8 channels can activate 1 channel equalization | ||||
| Digital signal power input | Max120mA,effective value 30-50mA | ||||
| Automatic address allocation | Support | ||||
| Io output | 2-way dry contact, rated 2A, passive output | ||||
| Analog input detection | 2-way (high edge detection) | ||||
| Bootloader | Support CAN bus burning and writing | ||||
| CAN communication | 1 Channel | ||||
| Anti reverse connection of power supply | Support | ||||
| Power surge prevention | Support | ||||
| Voltage resistance | Voltage withstand AC3100+,DC4380+ | ||||
| Working temperature | -40°C~85°C | ||||
| Storage temperature | -40°C~125°C | ||||
| Protection level | IP43, Not waterproof | ||||
| Humidity range | <95%,No condensation | ||||
| Shock | ≤5500m | ||||
| Automatic address allocation | At 10-25Hz,the amplitude is 1.2mm: At 26-500Hz,maximum 30m/S | ||||
| Drop | 1.5m, 5 times in both horizontal and vertical directions, no damage to PCBA, no change in performance | ||||