一种储能逆变器电网预充控制方法以及储能逆变器系统
By adjusting the phase difference of the output voltage of the energy storage inverter, and using weighted averaging and loop control, the inrush current problem during the pre-charging and grid connection phases of the energy storage inverter system was solved, thereby improving the reliability and safety of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO GINLONG TECH
- Filing Date
- 2026-03-31
- Publication Date
- 2026-07-17
AI Technical Summary
In energy storage inverter systems, the inrush current between the pre-charging and grid-connection phases can cause equipment damage, affecting system reliability and lifespan.
By adjusting the output voltage phase difference of the energy storage inverter through the control loop, making it close to the phase difference of the grid side voltage, and using weighted average feedforward processing and bus voltage slow-start outer loop and current inner loop, the phase difference is smoothly transitioned, and the instantaneous inrush current during grid connection is suppressed.
It effectively reduces the inrush current during grid connection, improves the reliability and safety of the energy storage inverter system, and extends the equipment life.
Smart Images
Figure CN121939384B_ABST