Title:
SOFT SWITCHING SOLID STATE TRANSFORMERS IMPLEMENTING VOLTAGE STRESS MITIGATION TECHNIQUES
Document Type and Number:
WIPO Patent Application WO/2023/288248
Kind Code:
A3
Abstract:
An exemplary embodiment of the present disclosure provides a soft-switching solid- state power transformer comprising a transformer, first and second auxiliary resonant circuits, first and second current-source inverter (CSI) bridges, and a first transformer capacitor. The first auxiliary resonant circuit can be coupled to a first winding connection of the transformer. The first auxiliary resonant circuit can comprise a resonant capacitor coupled across the first winding connection, and a resonant inductor coupled across the first winding connection in parallel with the resonant capacitor. The first CSI bridge can be coupled to the first auxiliary resonant circuit. The second auxiliary resonant circuit can be coupled to the second winding connection of the transformer. The second CSI bridge can be coupled to the second auxiliary resonant circuit. The first transformer capacitor can be coupled to a high voltage side of the first winding connection and a ground.
Inventors:
ZHENG LIRAN (US)
KANDULA RAJENDRA (US)
DIVAN DEEPAK (US)
KANDULA RAJENDRA (US)
DIVAN DEEPAK (US)
Application Number:
PCT/US2022/073683
Publication Date:
March 30, 2023
Filing Date:
July 13, 2022
Export Citation:
Assignee:
GEORGIA TECH RES INST (US)
International Classes:
H02M3/335; H02M5/458; H02M7/537
Domestic Patent References:
| WO2020023471A1 | 2020-01-30 |
Foreign References:
| US2412893A | 1946-12-17 | |||
| US3881137A | 1975-04-29 | |||
| US5093613A | 1992-03-03 | |||
| US5008795A | 1991-04-16 |
Attorney, Agent or Firm:
SCHNEIDER, Ryan, A. et al. (US)
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