零电流开关、恒开关频率的新型三相高质量多谐振整流器

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI:10.1109/IAS.2004.1348444

J. Shukla, B. G. Fernandes

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引用次数: 1

摘要

提出了一种开关频率恒定的新型三相高质量多谐振整流器。这些整流器中的输入二极管桥和两个开关在零电流开关(ZCS)条件下工作，而直流侧二极管在零电压开关(ZVS)条件下工作。器件上的电压应力与负载电流的变化无关。所提出的整流器模拟电阻特性，从而产生高质量的输入电流，适用于需要高效率和高功率密度的应用。此外，输出功率可以控制从零到额定。以三相升压型多谐振整流电路为例，验证了所提概念的有效性。推导了该电路的平均模型。通过在SABER上进行仿真，预测了电路的性能。设计和开发了一个实验室原型，在120 V/sub rms (L-L)/下提供250伏1kw。仿真结果在实验中得到了验证。

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Novel three-phase high-quality multi-resonant rectifiers operating with zero-current-switching and constant switching frequency

Novel three-phase high-quality multi-resonant rectifiers, operating at constant switching frequency is proposed. The input diode-bridge and two switches in these rectifiers operate under zero-current switching (ZCS) condition, while the dc-side diode operates under zero-voltage switching (ZVS) condition. The voltage stress on the devices is independent of the variations in load-current. The proposed rectifiers emulate resistive characteristics resulting in high-quality input current and are suitable for applications in which high efficiency and high power density are required. Also, output power can be controlled from zero to the rated. The validity of proposed concept is verified by taking an example of three-phase boost-type multi-resonant rectifier circuit. Averaged model of this circuit is derived. Performance of the circuit is predicted by simulating it on SABER. A laboratory prototype delivering 1 kW at 250 volts from 120 V/sub rms (L-L)/ is designed and developed. The simulation results are verified experimentally.

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Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.

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