Abstract
This letter proposes a multiobjective efficiency optimization method for triple-phase-shift (TPS) control of isolated dual active bridge converters (DABs). A comprehensive optimization of inductor current stress, inductor rms current, and zero-voltage switching (ZVS) is presented to reduce conduction losses, magnetic losses, and switching losses. A genetic algorithm is used to search for optimal solutions of the DAB nonconvex optimization problem. Analysis of these solutions gives rise to closed-form expressions for optimum TPS control angles, valid over various power and voltage levels. These can be realized for real-time operation. A 3.3-kW experimental prototype is used to verify the proposed optimized modulation control.
| Original language | English (US) |
|---|---|
| Article number | 9337193 |
| Pages (from-to) | 8612-8616 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 36 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2021 |
Keywords
- Current minimization
- dual active bridge converters (DABs)
- nondominated sorting genetic algorithm
- rms current
- triple-phase-shift (TPS) control
- zero-voltage switching (ZVS)
ASJC Scopus subject areas
- Electrical and Electronic Engineering