Technical Description
The technology discloses a predictive control framework for two-stage EV fast chargers with a three-phase AC-DC front end and DC-DC buck stage. It combines Lagrange extrapolation, modified-Euler prediction and an efficiency-based DC-link reference to reduce switching and battery ripple. A laboratory prototype reported an efficiency increase from approximately 90% to 93%.
Problems Addressed
- High Switching Losses
- Excessive Power Ripple
- Grid Current Harmonics
- Poor Grid Interaction
- Limited Prediction Accuracy
- Controller Computation & Tuning Burden
Tech Features
- Two-Stage Converter Architecture
- Lagrange Extrapolation
- Modified-Euler Current Prediction
- MEOP DC-Link Lookup
- PLL-Free Grid Control
- 40 µs Real-Time Sampling
Target Audience
- EV Fast-Charger Manufacturers
- EV Charging Infrastructure Operators
- Fleet Depot Charging Providers
- Highway Charging Network Developers
- Power Electronics System Integrators
- Battery Test-Bed Developers
Tech ID: P03-2304 TRL 4 Patent Status: Published Available For Exclusive and Non-exclusive License
