Resonance suppression method and apparatus for energy storage converter
By monitoring the environment of the distribution area and the actual energy access status, and combining the switching frequency of the energy storage converter with the load and electrical conditions, the resonance suppression level is dynamically adjusted, which solves the problem of the flexibility of resonance suppression of the energy storage converter in the dynamic power grid environment, and achieves efficient resonance suppression and power grid stability.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- STATE GRID HUBEI ELECTRIC POWER CO LTD
- Filing Date
- 2025-12-01
- Publication Date
- 2026-07-02
AI Technical Summary
When faced with dynamically changing power grid and load conditions, existing energy storage converters cannot provide flexible and intelligent responses using traditional resonance suppression methods. They are ill-equipped to cope with complex and rapidly changing power grid environments, leading to resonance problems and electrical oscillations.
By monitoring the environment of the transformer substation and the actual energy access status, the threshold range of seasonal scenarios and energy access status is determined. Combined with the switching frequency of the energy storage converter and the load and electrical conditions, the activation level of resonance suppression is dynamically adjusted, and multi-parameter analysis and matching models are used for accurate judgment and suppression.
It enables preventative maintenance before resonance problems occur, improves the accuracy and efficiency of system decision-making, avoids excessive or insufficient resonance suppression, ensures the stability and flexibility of the power grid, adapts to seasonal load changes, and reduces resource waste and equipment damage.
Smart Images
Figure CN2025139088_02072026_PF_FP_ABST