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H5+ Converter: A Bidirectional AC–DC Converter With DC-Fault-Blocking and Self-Pre-Charge Capabilities
- Source :
- IEEE Transactions on Power Electronics. 34:10619-10634
- Publication Year :
- 2019
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2019.
-
Abstract
- A pulse-width-modulation (PWM) bidirectional ac-dc converter (i.e., active rectifier) with dc-faultblocking 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.
- Subjects :
- Technology
Electrical & Electronic Engineering
Computer science
Hardware_PERFORMANCEANDRELIABILITY
Fault (power engineering)
Rectifier
Engineering
DESIGN
SYSTEMS
AC-DC power conversion
NETWORK
Transient-voltage-suppression diode
Electrical and Electronic Engineering
LOSSES
Circuit breaker
Diode
Science & Technology
business.industry
PWM INVERTERS
Electrical engineering
CIRCUIT
Engineering, Electrical & Electronic
protection
DC-BUS
0906 Electrical and Electronic Engineering
pulsewidth modulated power converters
power distribution faults
Pre-charge
MULTILEVEL CONVERTER
HYBRID
business
Low voltage
Subjects
Details
- ISSN :
- 19410107 and 08858993
- Volume :
- 34
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Power Electronics
- Accession number :
- edsair.doi.dedup.....2b99c25aa53941196ff640f2ef65743a
- Full Text :
- https://doi.org/10.1109/tpel.2019.2900618