逆变电路反峰优化方法、装置、逆变电路及存储介质
By optimizing the on/off slopes of the control switching transistor and the freewheeling transistor, the reverse peak problem of the freewheeling transistor in the photovoltaic grid-connected inverter was solved, improving the safety and reliability of the circuit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN KEHUA DIGITAL ENERGY TECH CO LTD
- Filing Date
- 2022-12-28
- Publication Date
- 2026-07-17
AI Technical Summary
In photovoltaic grid-connected inverters, the freewheeling diode in the freewheeling module may break down due to reverse peaking issues, affecting the safe operation of the circuit.
By controlling the switching transistors in the full-bridge arm module to turn on slowly and turn off quickly, and controlling the freewheeling transistors in the freewheeling module to turn on quickly and turn off slowly, the reverse voltage of the freewheeling inductor in the freewheeling module is reduced, thereby reducing the reverse peak voltage across the freewheeling transistor.
This effectively reduces the reverse peak problem of the freewheeling diode in the freewheeling module, thus mitigating its impact on the safe operation of the photovoltaic grid-connected inverter and improving circuit safety.
Smart Images
Figure CN116345868B_ABST