Product Description

This DC/DC module employs high-frequency isolated bidirectional conversion technology, namely soft-switching resonant technology, which ensures high efficiency. The converter enables bidirectional energy flow and automatic switching between charging and discharging. With DSP design, it supports module paralleling and CAN/RS485 communication, facilitating seamless communication and control with third-party devices. This power module is widely applicable in scenarios featuring a common DC bus, such as energy storage, storage-charging, photovoltaic-storage-charging, storage-charging-inspection, battery echelon utilization for energy storage, vehicle-to-grid (V2G) interaction, and other multi-energy complementary scenarios. The high-frequency isolation between the battery and the DC bus makes it the top choice for industries requiring bidirectional energy flow.

【Product Advantages】

Enhanced Safety and Reliability

• Full High-Frequency Isolation Design: Ensures safety between the battery and the DC bus.
• Fully Digital Control with DSP+CPLD: Features multi-level software and hardware protection against overcurrent, overvoltage, and overtemperature, ensuring safety and reliability.
• Reliable Paralleling Function: Facilitates power expansion, supporting up to 16 modules in parallel.

Higher Efficiency

• Soft-Switching Resonant Technology in DC/DC: Achieves a peak efficiency of 97%.
• High-Frequency Isolation: Compared to traditional non-isolated DC/DC solutions, it eliminates the need for a line-frequency transformer, resulting in higher efficiency of over 97%.

Smarter and More User-Friendly

• Wide Battery Voltage Range: Covers multiple battery voltage levels for passenger vehicles (10V~100Vdc).
• Broader DC Bus Voltage Range: Facilitates connection to various DC bus specifications.

Lower Cost

• High-Frequency Isolation: Eliminates the line-frequency transformer compared to traditional bidirectional power solutions, reducing system cost.
• Integrated Charging and Inverting: Achieves both charging and inverting functions with a single circuit, integrating charging and discharging and lowering costs.

Flexible Configuration

• Standard Rack Mounting Support: Compact structure.
• Hot-Swappable Module Design: Enables flexible system configuration.
• Facilitates System Integrators: Allows flexible design of various storage-charging, photovoltaic-storage-charging, storage-charging-inspection, or energy storage systems.

【Application Fields】

Multi-Energy Complementary Scenarios: “Photovoltaic-Storage-Charging” or “Storage-Charging”

In multi-energy complementary scenarios, such as large charging stations or battery swap stations, “photovoltaic-storage-charging” or integrated “storage-charging” stations utilize clean energy for power supply. Electricity is stored after photovoltaic generation, forming a microgrid with photovoltaic, energy storage, and charging facilities, which intelligently interact with the public grid based on demand. The use of energy storage systems also mitigates the impact of high-current charging on the regional grid. Adopting a common DC bus solution, including photovoltaic, energy storage, charging piles, and DCDC loads, reduces ACDC conversion steps. Electric vehicle energy storage V2G enables both charging and discharging, realizing bidirectional energy interaction between electric vehicles and the grid. Storage-charging-inspection utilizes the discharge of new energy vehicles or battery packs to assess battery capacity and calculate the degree of capacity degradation.

Bidirectional High-Frequency Isolated DC/DC Module (5kW / 10kW)

Energy Storage for Communication Base Stations

Most communication base stations have batteries with a rated voltage of around 48Vdc. In common DC bus applications, this module enables the echelon utilization of retired lead-acid batteries for energy storage in communication base stations. Batteries are connected in groups to individual modules, reducing battery circulation and extending battery life.

On-Board Mobile Energy Storage

Mobile energy storage vehicles, equipped with large-capacity batteries, can utilize this DCDC module for various applications, such as charging the vehicle and supplying power to DC loads. Electric vehicles can supply power to DC loads through this DCDC module, realizing electric vehicle energy storage V2L.

【Application Fields】Bidirectional High-Frequency Isolated DC/DC Module

Product Model: IBDC48104

Charging Section

• DC Bus Side Parameters
  • DC Bus Voltage Range: 240Vdc～420Vdc
  • DC Bus Current: ≤16A
• Battery Side Parameters
  • Output Voltage: 10～100VDC
  • Output Current: 104A MAX
  • Rated Output Power: 5kW (Power limited to 5kW above 48Vdc, current limited to 104A below 48Vdc)
  • Charging Efficiency: Up to 97%
  • Voltage Stabilization Accuracy: ±0.5%
  • Current Stabilization Accuracy: ±1%
  • Ripple Coefficient: <1%Vo
  • Soft Start Time: 3s～8s

Discharging Section

• Battery Side Parameters
  • Battery Side Voltage Range: 30～100VDC
  • Battery Side Current: 104A Max
• DC Bus Side Parameters
  • DC Bus Voltage Range: 240Vdc～420Vdc
  • Rated Output Power: 5kW (Power limited to 5kW above 48Vdc, current limited to 104A below 48Vdc)
  • Discharging Efficiency: Up to 97%

Other Performances

• Protection Functions
  • Over-voltage Protection: Available
  • Over-current Protection: Available
  • Short-circuit Protection: Available
  • Over-temperature Protection: Available
• Other Parameters
  • Operating Temperature: -30～65℃, output power derating above 55℃
  • Storage Temperature: -40～75℃
  • Noise: <60dB
  • Dimensions (Width * Height * Depth): 22086400mm
  • Weight: 7Kg
  • Protection Level: IP20 (single module)
  • Cooling Method: Intelligent speed regulation, forced air cooling
  • Communication Interface: CAN 2.0B/RS485
• Certification Standards
  • Safety: GB/T 34120-2017 Technical specifications for energy conversion devices in electrochemical energy storage systems
  • EMC: GB 9254-2008