Abstract
A full digitalized bipolar and double modulation control strategy is proposed in this paper according to the control of voltage mode high-frequency link inverter. The utilization rate of magnetic core is high because the duty cycle of the AC square waveform transmitted is 0.5. Taking the full bridge full wave topology as an example, the operation principle of the proposed control strategy is analyzed. With this strategy, the switches of high frequency inverter are ZVS on-off and the switches of cycloconverter are ZCS on and ZCZVS off. The simulation results with saber and experimental results of 300 VA prototype validate the feasibility of the proposed strategy. All the switches of the power circuit can be realized with soft switching and natural commutation without voltage surge occurrence during the cycoloconverter commutation. The proposed strategy contributes a lot to the application of large power voltage mode high-frequency link inverter.
| Original language | English |
|---|---|
| Pages (from-to) | 59-63+58 |
| Journal | Diangong Jishu Xuebao/Transactions of China Electrotechnical Society |
| Volume | 20 |
| Issue number | 12 |
| Publication status | Published - Dec 2005 |
| Externally published | Yes |
Keywords
- High-frequency link inverter
- Natural commutation
- Zero current switching
- Zero voltage switching