谐振变换器的功率控制方法及谐振变换器
By determining the frequency adjustment range and constraints in the resonant converter, the precise design of the resonant cavity circuit is achieved, solving the soft-switching problem of dual active bridge converters over a wide power range and improving efficiency and the feasibility of power regulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HOYMILES POWER ELECTRONICS INC
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing dual active bridge converters are difficult to implement soft switching over a wide power range, and the modulation algorithm is complex, which leads to increased reactive current and resonant current, low efficiency, and easy loss of soft switching under light load.
By adjusting the frequency of the resonant converter within a limited frequency adjustment range, the constraint conditions for the resonant converter to achieve unity power factor are determined, the resonant cavity circuit is precisely designed, and near unity power factor operation is achieved, reducing the reactive power on the input side. Furthermore, power regulation from full load to light load is achieved through frequency adjustment.
It significantly reduces the input current and losses of the resonant converter, maintains the soft-switching effect, avoids the difficulties caused by modulation methods, and improves efficiency.
Smart Images
Figure CN122225802B_ABST