In European households with three-phase power supply in Germany and Austria, and in commercial complexes, parking lots, and stations, three-phase solar storage systems are the preferred choice due to their high power capacity and energy management efficiency. However, traditional three-phase equal-output modes can lead to energy waste and grid violations when supplying single-phase loads or under anti-feeding power constraints. The Hinen H25T 25kW Three-phase Hybrid All-in-One RESS offers a flexible and compliant solution with its 100% three-phase independent imbalance output and smart phase adaptation technology.
I. Challenge and Breakthrough: Why 100% Imbalanced Output?
Core Issues
- Per-phase Power Limitation in Anti-feeding Scenarios: In regions like Germany with strict grid-feeding limits, per-phase independent power control is required. Equal three-phase output can lead to power generation losses when one phase has low demand.
- Random Load in Off-grid Conditions: Random single-phase load changes (e.g., EV charging) can cause voltage imbalance and traditional inverter shutdowns.
H25T's Innovative Solution
- 100% Imbalance Output: Each phase can independently adjust output power between 0-8.3kW (25kW/3), with a maximum power difference of 8.3kW between any two phases(for example, Phase R at 8.3 kW, Phase S at 0, and Phase T at 0).
- Full-scenario Support: Adapts to various modes like grid-connected anti-feeding, off-grid microgrid, and backup power, handling even the most extreme load imbalances.
II. Technical Analysis: How to Achieve 100% Three-phase Independent Control?
Hardware Innovation
- Three-phase Decoupled DC-AC Conversion: Each phase has its own MPPT controller and IGBT module for independent control, avoiding power interlock issues.
- Neutral Point Balance Bridge: Injects compensation current to eliminate phase-to-phase circulation caused by load imbalance, ensuring voltage distortion <2% in off-grid mode.
Smart Phase Perception and Dynamic Adjustment
- CT Meter Data Fusion: High-precision CT sensors monitor per-phase load power, dynamically calculating optimal phase power allocation every 10ms.
- Adaptive Modes: Anti-feeding mode ensures PV output complies with grid limits; off-grid mode stabilizes voltage through virtual impedance adjustment.
- Phase Auto-recognition: RST phase auto-detection technology prevents wiring errors, especially in grid-upgrade projects.
4 MPPT channels
Supports high-power modules and enables efficient use of modules.
Conclusion
The Hinen H25T 25kW Three-phase All-in-One RESS effectively solves three-phase imbalance issues with advanced technology and design. It meets power needs in various residential and commercial scenarios, improves energy quality and efficiency, and ensures stable grid operation. H25T is a reliable choice for both home and commercial use.
