Abstract
In this paper, a control method of a bi-directional zero-voltage-switching (ZVS) DC-DC converter for HEV power system is presented. By controlling the minimum and maximum values of the inductor current, the ZVS condition is achieved. Also employing the variable frequency control with respect to the variation of the DC-link current and the super-capacitor voltage, the circulating energy loss at the light load condition is minimized. A 1.25kW experimental hardware prototype module is built to verity the efficiency improvement, especially at the light load condition. It shows about 34% efficiency improvement compared to the fixed frequency control at the light load condition.
| Original language | English |
|---|---|
| Pages (from-to) | 135-140 |
| Number of pages | 6 |
| Journal | PESC Record - IEEE Annual Power Electronics Specialists Conference |
| Volume | 1 |
| Publication status | Published - 2004 |
| Event | 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04 - Aachen, Germany Duration: 2004 Jun 20 → 2004 Jun 25 |
ASJC Scopus subject areas
- Modelling and Simulation
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering