BEC75025

The BEC75025 is a bidirectional DC conversion module specially designed to meet the applications of energy storage devices, DC microgrids, and the cascaded utilization of retired batteries. This module can be used to connect batteries and DC buses. It has a built-in high-frequency isolation transformer and adopts third-generation semiconductor SiC devices to achieve excellent performances such as high efficiency, high power density, high scalability, extremely low electromagnetic radiation and interference, and high reliability. It is a power conversion module with an international leading level.

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BEC75025
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Product Features Application Scenarios Classification
Product Features
High Efficiency and Energy Saving
High Efficiency and Energy Saving

■ High efficiency：Designed with all SiC (Silicon Carbide), it has a full-load efficiency as high as 98% and a peak efficiency of up to 98.5%.

Safety and Reliability
Safety and Reliability

■ Built-in intelligent discharge circuit：Automatically discharge the residual charge, and the system has high reliability.
■ Isolation by high-frequency transformer：Ensure the high reliability of the bidirectional conversion module.
■ Bidirectional energy flow：The same module can achieve the bidirectional conversion function of DC/DC, and can make a smooth transition when the power flow direction changes.

Intelligent and Convenient
Intelligent and Convenient

■ Fully digital control：Dual DSP design, with high-reliability control.
■ Hot swapping without damage：Plug and play, convenient for maintenance.
■ Parallel connection of multiple modules：It supports the parallel connection of up to 32 modules. With flexible capacity expansion, it can be adapted to the simultaneous use of retired batteries of different models.

Widely Compatible
Widely Compatible

■ Wide input voltage range：300Vdc～750Vdc，compatible with various levels DC buses.
■ Wide output voltage range：50Vdc~750Vdc，compatible with various power batteries and energy storage batteries.
■ Wide temperature range： -40℃～＋75℃ ，compatible with applications in various scenarios.
■ Unique design for protection against three aspects：Designed to be resistant to salt spray, moisture and mildew, it adapts to various application scenarios.

Application Scenarios

  • DC bus microgrid system

    DC bus microgrid system

  • DC bus V2G system

    DC bus V2G system

  • Hierarchical utilization of retired batteries

    Hierarchical utilization of retired batteries

Classification
BEC75025

Working Conditions Battery Side High-voltage Side Appearance Others

Working Conditions

Operating Temperature -40℃～＋75℃，derating shall be applied when the temperature is above +55℃.
Relative Humidity ≤95％RH，condensation-free
Cooling Method Forced air cooling
Altitude 2000m，derating should be considered when the altitude is above 2000 meters.
Battery Side

Input / Output Power 15kW（600Vdc~750Vdc）
Voltage Range 300Vdc~750Vdc
Current Range 0~25A
Rated Current 20A
Current-sharing UnbalanceDegree<±5%
Accuracy of Voltage Stabilization ＜±0.5％
Accuracy of Current Stabilization ≤±1％（The output load ranges from 20% to 100% of the rated range.）
Efficiency (Full Load) > 98%（Rated Voltage 750Vdc，50％～100％Load Current；Peak Efficiency> 98.5%） 
High-voltage Side

Input / Output Power 15kW
Voltage Range 300Vdc~860Vdc
Current Range 0~25A
Rated Current 20A
Current-sharing UnbalanceDegree<±5％
Accuracy of Voltage Stabilization <±0.5％
Accuracy of Current Stabilization ≤±1％（The output load ranges from 20% to 100% of the rated range.）
Efficiency (Full Load) >98%（Rated Voltage 750Vdc，50％～100％Load Current；Peak Efficiency> 98.5%）
Appearance

Dimension 85mm（H）×226mm（W）×395mm（D)
Weight ≤10.5kg
Others

Connect Method CAN
MTBF >500,000h
Satisfied Standards GB/T18487、NB/T33001、NB/T33008

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