In modern household and business environments, the continuity and stability of power supply are crucial. Any power interruption or fluctuation can lead to equipment damage, data loss, or even business disruptions. The grid-tie and off-grid switching technology of energy storage inverters is key to ensuring a smooth transition of the energy system between normal and faulty grid conditions. The Hinen A Series Residential Storage System is equipped with advanced fault detection and rapid switching functions, which can quickly respond during a power outage and achieve almost seamless switching between grid-tied and off-grid modes, ensuring that your power supply is always stable and reliable.
By adopting Virtual Synchronous Generator (VSG) control technology, the Hinen A Series RESS has achieved seamless grid-tie and off-grid switching. This technology stabilizes frequency and voltage through droop control and inertia, further improving system performance and enabling weak grid access. During the switching process between off-grid and grid-tie modes, it ensures that the inverter's output voltage amplitude and frequency are stable, and through high-precision digital phase-locked loop control technology, it ensures that the inverter's output voltage and frequency are pre-synchronized with the grid, achieving a smooth transition.
Rapid Fault Detection and Switching
1. Grid-Tie to Off-Grid Switching
When a grid fault occurs, the Hinen A Series RESS can quickly detect the mains fault and instantly disconnect the grid-tie relay, switching the system from grid-tie mode to off-grid mode. Supported by optimized circuit topology technology and advanced software control technology, this process takes a total of ≤10 milliseconds, much faster than the market mainstream 20 milliseconds, achieving a faster switching action to supply power to the user's load.
2. Off-Grid to Grid-Tie Switching: Seamless Transition
When the grid returns to normal, the Hinen A Series RESS can quickly enter the process of inverting voltage following the grid voltage, achieving phase and amplitude pre-synchronization processing, automatically completing the grid-tie and off-grid switching, and achieving a true 0ms seamless transition. This immediate switching not only ensures the continuity of power supply but also avoids load power drop and impact current, improving product reliability and relay life.
Uninterrupted Power Supply
EPS Uninterruptible Power Supply Support
During periods of grid instability or power outages, the Hinen A Series RESS can supply power through the EPS (Emergency Power Supply) system, ensuring that critical equipment does not lose power before the grid is restored. Even in the event of a complete power outage, the Hinen A Series RESS can provide continuous power support to the load through the EPS within 10 milliseconds, ensuring that your equipment and business are unaffected. The rapid response capability of the EPS system makes the Hinen A Series RESS an ideal choice for dealing with emergencies.
Summary of Technical Advantages
- Advanced Fault Detection Algorithm: Built-in intelligent algorithms monitor the grid status in real-time, accurately determining the occurrence of power faults.
- Efficient Relay Control: High-performance relay control circuits ensure that the relay can complete the action of closing or opening in a short time, reducing switching delays.
- Seamless Switching Technology: Utilizing Virtual Synchronous Generator control technology and pre-synchronization control, it achieves a smooth transition between grid-tie and off-grid modes, avoiding impact on the load.
- EPS Uninterruptible Power Supply: When the grid is faulty or unstable, the EPS system provides continuous power support to ensure that critical equipment does not lose power.
Conclusion
The Hinen A Series RESS provides a reliable power solution for users with its rapid fault detection and seamless switching functions. Whether facing grid faults or power fluctuations, the Hinen A Series RESS can respond quickly, ensuring the continuity and stability of the power supply. If you are looking for an efficient and reliable energy management system, the Hinen A Series RESS is undoubtedly your best choice.
