Supertwisting sliding mode controller for fast EV charging
US12145460B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2024 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jul 26, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2210/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A circuit and methods including super-twisting sliding mode controller (ST-SMC) control of an AC/DC quasi single-stage current-fed resonant converter for electric vehicle (EV) charging. The converter includes primary side switches and a secondary side bidirectional switch, achieving zero-voltage switching (ZVS) for efficient operation. The primary side includes an active clamp circuit, while the secondary side incorporates a resonant tank for smooth energy transfer. The ST-SMC generates pulse width modulation signals, ensuring ZVS at turn ON and turn OFF for primary switches, and ZVS at turn ON with low-voltage switching at turn OFF for the bidirectional switch. The circuit includes a feedback loop with an error calculation unit for precise control of grid current and output voltage, providing power factor correction and regulated output for 400V and 800V EV batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.