基于自适应频率调节的LLC谐振变换器智能控制系统
The intelligent control system with adaptive frequency adjustment generates the optimal frequency change trajectory, solving the safety and reliability issues of LLC resonant converters during frequency changes. It achieves a balance between dynamic response speed and reliability, and reduces switching losses and electromagnetic interference.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN HONGGUANG ELECTRIC CO LTD
- Filing Date
- 2026-04-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing LLC resonant converters suffer from resonant current zero-crossing offset and insufficient energy leading to hard switching state during frequency changes, resulting in switching losses and electromagnetic interference. Furthermore, it is difficult to balance dynamic response speed and reliability.
An intelligent control system with adaptive frequency regulation generates the optimal frequency change trajectory through data acquisition, trajectory generation, risk assessment, and decision execution modules, ensuring a smooth transition under zero-voltage switching conditions and avoiding frequency change rate shocks and resonant point crossing shocks.
This study improves the safety and reliability of LLC resonant converters during dynamic response, reduces switching losses and electromagnetic interference, and enhances the robustness and long-term reliability of the system under complex operating conditions.
Smart Images
Figure CN122026732B_ABST