Research Article
Research on Modelling and Stability Characteristics of Electric Traffic Energy System Based on ZVS-DAB Converter
Table 1
Performance comparison between DAB converter and LLC resonant converter.
| Parameter | DAB | LLC |
| External capacitor | No (small volume) | Yes (large volume) | Voltage controllability | High | Low | Total ZVS | Yes | Yes | Secondary side ZCS | No | Yes | Parallel current-sharing | Easy | Difficult | Antimagnetic saturation | Software | Hardware | Current stress | Lower | Higher | Suppression of DC second harmonic | Yes | No | Control points | PI voltage closed loop, antimagnetic saturation | Power switching, load sharing |
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