VEICHI - Model VHP800-E81 Series -DC Power Supply Cabinet
The VHP800-E81 Series DC Power Supply Cabinet by VEICHI is an advanced high-power solution designed for large-capacity electrolyzer applications. Featuring a modular architecture, it allows for flexible combinations and expansions, ensuring optimal efficiency, stability, and safety. The cabinet supports independent regulation of voltage, current, or power with high accuracy and rapid response times due to integrated IGBT control technology. It boasts a maximum output power of 10 MW with a parallel control structure, and it exhibits excellent adaptability to grid fluctuations as well as extreme environmental conditions, ranging from -40°C to altitudes of 4000 meters. The system ensures grid-friendliness with a harmonic content of less than 3% and a power factor of 0.99 or higher, complete with reactive power compensation and voltage ride-through features. Efficient topology, including a power transformer, three-level rectifier, and three-phase interleaved BUCK circuit, contribute to high efficiency and low DC voltage ripple, ensuring smooth operation for electrolyzer systems. The integrated Energy Management System (EMS) in both on-grid and off-grid hydrogen production solutions further enhances energy reliability and system efficiency by intelligently coordinating various renewable energy sources.
High-power supply system with multiple DC power modules, featuring with separate regulation of voltage, current or power, ensuring high regulation accuracy and fast response. Modular design for free combination and expansion, providing high efficient, stable, safe and low harmonic DC power for large-capacity electrolyzer.
- High Output Power: Parallel control structure with a max. output power of 10 MW.
- Rapid Response: IGBT control, fast regulation response speed.
- High Reliability: Excellent adaptability to grid fluctuations from new energy power generation, and harsh environment at -40℃ and 4000m.
- High Grid-Friendliness: Harmonic content <3%, power factor ≥0.99, with functions as reactive power compensation and high/low voltage ride-through.
- Input : Input voltage range: 380V~1140V
- Rated operating frequency: 50Hz/60Hz
- Rated power factor: ＞0.99
- Power factor range: -0.95 ahead~0.95 lag
- Grid frequency deviation: ±10%
- Grid voltage deviation: ±10%
- On-grid total harmonic distortion rate: <3% (at rated power)
- Connection method: 3-phase 3-line + PE
- Output : Output voltage range: 0V~1500V
- Output current range: 0A~20000A
- Voltage ripple: ≤1%
- Current stabilizer accuracy: ±1% (steady state)
- Voltage stabilizer accuracy: ±1% (steady state)
- Load response time: <0.1s (0%~100% of load, operating status)
- Control mode : Output control: Voltage control, current control, power control
- Protection : Protection function: Short-circuit, over-current, over-voltage, under-voltage, phase loss, overheating, and overload, etc.
- System : Inlet/outlet method: Upper/lower inlet, lower outlet
- Efficiency: ≥97%
- Environment
- requirement : Cooling method: Liquid cooling
- Operating temperature: -30℃～+60℃(>45℃ derating)
- Storage temperature: -40℃ ~+70℃
- EME: Class A
- Relative humidity: 5%RH～ 95%RH (non-condensing）
- Enclosure IP: IP54 (Customization available)
- Max. altitude: 4000m (>3000m derating)
- Communication : Interface: RS485, Ethernet, etc.
- Protocol: Modbus RTU, Modbus TCP, etc.
- Noise : Noise (1m distance): ≤ 65dB
- Display : HMI: Touch screen