🔧 Technical Architecture

The bidirectional isolated AC/DC module employs three-level technology for seamless AC/DC conversion.
The DC/DC stage uses high-frequency isolated bidirectional conversion with soft-switching resonant technology,
enabling efficient bidirectional energy flow with automatic charge/discharge switching.
Dual-DSP architecture ensures stable performance, supports module paralleling (up to 12 units),
and features CAN & RS485 communication for easy integration with third-party systems.

🎯 Application Positioning

Widely used in energy storage systems, battery formation & grading, emergency power supplies,
and DC aging test systems. The preferred choice for industries requiring bidirectional energy flow.

🛡️ Safer & More Reliable

• ▸ Full high-frequency isolation ensures battery-grid/load safety
• ▸ DSP+CPLD full digital control with multi-level hardware/software protection
• ▸ Reliable parallel operation, up to 12 modules
• ▸ Strong grid adaptability

⚡ Higher Efficiency

• ▸ High-frequency isolation eliminates bulky transformers, efficiency >95%
• ▸ AC/DC three-level technology, peak efficiency 98%
• ▸ DC/DC soft-switching resonant, peak efficiency 98%

🧠 Smart & User-Friendly

• ▸ Grid-tied and off-grid modes (V2G, V2L)
• ▸ Wide battery voltage: 100V–750Vdc
• ▸ Wide grid range & 50/60Hz auto-adaptation

🔧 Flexible Configuration

• ▸ 19-inch standard rack mount, compact design
• ▸ Hot-swappable modules for flexible configuration
• ▸ Ideal for energy storage, formation, and aging feedback systems

🚗 V2G (Vehicle-to-Grid)

With the growing EV fleet (forecast 80 million by 2030), EVs serve as flexible loads and distributed energy resources.
V2G bidirectional DC charging stations (up to 250kW) enable bidirectional energy flow between EVs and the grid:
charge during off-peak, discharge during peak for price arbitrage, enhance load flexibility,
reduce grid infrastructure investment, and boost renewable integration.

♻️ Battery Second-Life

Modular PCS ideal for retired EV battery second-life applications, covering 15kW–250kW for C&I parks.
Flexible embedded PCS with isolated bidirectional AC/DC for enhanced safety, efficiency, and compact size.
Grid-tied/off-grid integrated design supports microgrids (islands, remote villages). Wide voltage range perfectly suits
retired automotive battery repurposing. Configurable as mobile energy storage for critical temporary power.

🔋 Battery Formation & Grading

Two revolutionary advancements: (1) Energy feedback replaces resistive load banks, saving energy and reducing heat;
(2) High-frequency isolation replaces line-frequency transformers, improving efficiency, lowering cost, and reducing footprint.
The bidirectional high-frequency isolated power supply for formation & grading connects battery packs directly to modules,
eliminating bulky transformers with higher efficiency and smaller size.

⚙️ DC Aging Test Systems

During production aging of DC power supplies (charging piles, telecom power, etc.), traditional resistive or electronic loads waste enormous energy.
By integrating the AC/DC module into the aging process, energy is fed back to the grid, saving at least 95% of electricity costs.

📋 Routine Maintenance

• 1. Check operating conditions: temperature, humidity, I/O voltage, frequency, LED indicators, alarms
• 2. Check for abnormal noise; inspect fans and bidirectional modules
• 3. Inspect AC/DC terminals for tightness, cables for integrity; guard against rodents
• 4. Verify system monitoring panel: all units normal, no faults or alarms
• 5. Clean dust from equipment as needed
• 6. Record ambient temperature and humidity
• 7. Verify module parameter configuration

🔄 Replacement Procedure

1. Remove the faulty module (caution: high internal temperature or residual voltage)
2. Confirm the new module is intact
3. Shut down all running modules in the system
4. Open AC/DC breakers of the faulty module; loosen fixing screws
5. Grasp the handle and slowly pull out; when two-thirds out, have two people lift it out
6. Align the new module with the slot and push it in slowly until firmly seated
7. Secure with two fixing screws
8. Close AC/DC breakers
9. Verify the monitoring panel recognizes the new module, communication is normal, and current sharing is balanced