充电泵
Ćuk转换器
正激变换器
电子工程
电气工程
升压变换器
反激变换器
断层(地质)
整流器(神经网络)
工程类
转换器
电压
计算机科学
电容器
随机神经网络
机器学习
地质学
循环神经网络
地震学
人工神经网络
作者
Ye Wang,Yitong Li,Adrià Junyent-Ferré,Min Soo Kim
出处
期刊:IEEE Transactions on Power Electronics
[Institute of Electrical and Electronics Engineers]
日期:2019-11-01
卷期号:34 (11): 10619-10634
被引量:3
标识
DOI:10.1109/tpel.2019.2900618
摘要
A pulsewidth-modulation bidirectional ac-dc converter (i.e., active rectifier) with dc-fault-blocking and self-pre-charge capabilities is proposed in this paper for low voltage dc (LVdc) applications. The proposed converter, which is named as “H5 + converter,” consists of an H4 bridge, a bidirectional switch, and a transient-voltage-surge (TVS) diode. The bidirectional switch and the TVS diode enable the dc fault blocking and dc bus self-pre-charge, while preserving the low common-mode voltage noise and low leakage current of the converter. Additionally, the proposed H5+ converter has advanced features under a dc-side short-circuit fault, such as fault diagnosis and fault recovery. Operation principles of the proposed converter are presented and analyzed. A down-scaled prototype is built. Experiment results are shown and analyzed, including steady-state waveforms, common-mode performance, start-up dynamics, as well as dc fault blocking, fault diagnosis, and fault recovery. Moreover, the proposed converter is compared with other two dc-fault-blocking converters for LVdc applications, in terms of converter capabilities, required devices, and power switch losses.
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