A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-Source

As the continuous consumption of non-renewable energy leads to resource shortages, distributed PV generation technology has received widespread attention. The DC microgrid is an effective way to connect distributed PV generation. However, DC microgrids have numerous challenges, such as the absence o...

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Main Authors: Jing Gao, Ziming Liu, Jinming Luo, Hongjiang Wang, Yiqi Liu, Junyuan Zheng
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/3/745
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author Jing Gao
Ziming Liu
Jinming Luo
Hongjiang Wang
Yiqi Liu
Junyuan Zheng
author_facet Jing Gao
Ziming Liu
Jinming Luo
Hongjiang Wang
Yiqi Liu
Junyuan Zheng
author_sort Jing Gao
collection DOAJ
description As the continuous consumption of non-renewable energy leads to resource shortages, distributed PV generation technology has received widespread attention. The DC microgrid is an effective way to connect distributed PV generation. However, DC microgrids have numerous challenges, such as the absence of zero current crossing point and high fault current rising rate. In the paper, a bi-directional DC solid-state circuit breaker based on flipped Γ-source is proposed to overcome some of the challenges in DC microgrid. The topology uses the mutual inductance current generated by the transformer to force the SCR naturally commutates off. Which can rapidly interrupt and isolate the faulty part, and at the same time, there will be no circulating current impact on the source side. The diode bridges allow the response to faults on either the source or load side with only a single controlled switch. Therefore, the topology is simplified while enabling it to obtain the capability of bidirectional operation protection. Finally, using the simulation software PSCAD/EMTDC and experimental platform verifies the effectiveness of the topology in this paper.
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spelling doaj.art-f1731295d41f4e51bf1d4024cf3f646a2023-11-23T16:19:10ZengMDPI AGEnergies1996-10732022-01-0115374510.3390/en15030745A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-SourceJing Gao0Ziming Liu1Jinming Luo2Hongjiang Wang3Yiqi Liu4Junyuan Zheng5Department of Electrical Engineering, Shenyang Institute of Engineering, Shenyang 110136, ChinaDepartment of Electrical Engineering, Shenyang Institute of Engineering, Shenyang 110136, ChinaDepartment of Electrical Engineering, Shenyang Institute of Engineering, Shenyang 110136, ChinaDepartment of Electrical Engineering, Shenyang Institute of Engineering, Shenyang 110136, ChinaCollege of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaCollege of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaAs the continuous consumption of non-renewable energy leads to resource shortages, distributed PV generation technology has received widespread attention. The DC microgrid is an effective way to connect distributed PV generation. However, DC microgrids have numerous challenges, such as the absence of zero current crossing point and high fault current rising rate. In the paper, a bi-directional DC solid-state circuit breaker based on flipped Γ-source is proposed to overcome some of the challenges in DC microgrid. The topology uses the mutual inductance current generated by the transformer to force the SCR naturally commutates off. Which can rapidly interrupt and isolate the faulty part, and at the same time, there will be no circulating current impact on the source side. The diode bridges allow the response to faults on either the source or load side with only a single controlled switch. Therefore, the topology is simplified while enabling it to obtain the capability of bidirectional operation protection. Finally, using the simulation software PSCAD/EMTDC and experimental platform verifies the effectiveness of the topology in this paper.https://www.mdpi.com/1996-1073/15/3/745PV generationDC microgridsolid-state DC circuit breakerbi-directional operation protection
spellingShingle Jing Gao
Ziming Liu
Jinming Luo
Hongjiang Wang
Yiqi Liu
Junyuan Zheng
A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-Source
Energies
PV generation
DC microgrid
solid-state DC circuit breaker
bi-directional operation protection
title A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-Source
title_full A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-Source
title_fullStr A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-Source
title_full_unstemmed A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-Source
title_short A Bi-Directional DC Solid-State Circuit Breaker Based on Flipped Γ-Source
title_sort bi directional dc solid state circuit breaker based on flipped γ source
topic PV generation
DC microgrid
solid-state DC circuit breaker
bi-directional operation protection
url https://www.mdpi.com/1996-1073/15/3/745
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