Name: Faltbare PV-Speicherlösungen
Brand: EK SOLAR
Availability: InStock

Energiespeicher bmcu

华为电池管理系统BMS由动力电池控制单元（BCU）和采样单元（BMU）组成,BCU主要负责充放电管理、SOX估算、故障保护及与整车系统通信等,BMU主要负责电池单体电压、温度采样

What is a BCU & a Hmu?

The BCU is used with the HMU to complete a full function of protection and energy management in at the rack level. The BMU is a controller designed to be installed in the pack to keep monitoring voltage and temperature of each battery cell for the total lifecycle.

What is a BMU & how does it work?

The BMU is a controller designed to be installed in the pack to keep monitoring voltage and temperature of each battery cell for the total lifecycle. The information collected by the HMU and BMU is transmitted to the BCU for safety and energy management.

What is a Battery Control Unit (BCU)?

Since battery cells require a proper working and storage temperature, voltage range, and current range for lifecycle and safety, it is important to monitor and protect the battery cell at the rack level. battery control unit (BCU) is a controller designed to be installed in the rack to manage racks or single pack energy.

How does a BCU work?

CAN, RS-485, and Ethernet is widely used in the communication interface. The BCU switches relays ON or OFF to keep the rack works safely based on the SOC, SOH, and rack status like rack current, voltage, temperature and insulation status. SOC and SOH is estimated from the accurate information of pack and rack.

How many volts is a BCU rated?

The BCU is supplied in a rated 24 V with a range of 18 V to 32 V. The 24-V power supply can be from AC-DC module or DC-DC module with 70-W minimum power. There are two 24-V input supply paths (LV_24V and RY_24V). LV_24V is used to supply all the control functions of the devices.

What is the minimum clearance between BCU and PCs?

A basic insulation is required between the BCU and PCS or the BCU and BSMU. For an altitude of 4000 m, the minimum clearance is 7.1 mm and the creepage is 8 mm. For an altitude of 5000 m, the minimum clearance is 8.14 mm and the creepage is 8 mm. This design follows the requirement from an altitude of 4000 m.