Novel Hybrid DC Circuit Breaker Based on Series Connection of Thyristors and IGBT Half-Bridge Submodules

Zhang, Fan; Ren, Yu; Shi, Zenan; Yang, Xu; Chen, Wenjie

doi:10.1109/tpel.2020.3010965

Cited by 35 publications

(10 citation statements)

References 30 publications

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“…Besides classic HCBs and the related MP HCBs, several new HCB and MP HCB topologies have recently been proposed in the literature [59]- [64], only some of which are realized by low-voltage prototypes. As an example, a new HCB characterized by mixed connection of thyristors and IGBT half-bridge submodules in the main breaker is proposed in [59]. As thyristors can endure a major part of TIVs, the number of required fullcontrolled power semiconductors is reduced, leading to the cost reduction of HCBs.…”

Section: Hybrid Cbsmentioning

confidence: 99%

A Contribution to the Development of High-Voltage dc Circuit Breaker Technologies: A Review of New Considerations

Mirhosseini

Lian

Popov³

et al. 2022

EEE Ind. Electron. Mag.

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Section: Hybrid Cbsmentioning

confidence: 99%

A Contribution to the Development of High-Voltage dc Circuit Breaker Technologies: A Review of New Considerations

Mirhosseini

Lian

Popov³

et al. 2022

EEE Ind. Electron. Mag.

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“…A Current Limiting Reactor (CLR) and a Residual Current Breaker (RCB) are used respectively to limit fault current and to provide galvanic isolation [16]. A substantial number of studies have been done on HCB technology and new versions such as vacuum interrupter based HCB [17], current flow controlling HCB [18], thyristor full-bridge-based HCB [19], HCB based on series connected thyristors and IGBT half-bridge submodules [20], superconductor based HCB [21], Multiport HCB [22], Gas Discharge Tube (GDT) based HCB [23] etc. have been proposed.…”

Section: ) Hybrid Circuit Breakermentioning

confidence: 99%

An Improved DC Circuit Breaker Topology Capable of Efficient Current Breaking and Regeneration

Lumen

Kannan

Mahmud

et al. 2022

IEEE Trans. Power Electron.

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The DC power system, due to its convenience of conversion, integration, and use, is getting immense attention in the field of power transmission and distribution. It is superior to traditional AC systems in terms of efficiency, reliability, and control simplicity as well. A DC circuit breaker is one of the important elements of any DC power system. It is a sophisticated technology designed to break DC current only. The breaking of a DC current is always challenging compared to the breaking of an AC current, as DC current does not have natural zero crossing points like AC current has. Moreover, DC current breaking becomes more critical when the current is inductive as energy stored in the network inductance opposes instantaneous current breaking. Hence, this energy needs to be absorbed and dissipated as heat during the current breaking operation, which is exactly what is done in the traditional DC circuit breaker topologies. This paper introduces a new topology for DC circuit breakers with a mechanism to reuse this stored energy instead of dissipating it. The mechanism is analogous to regenerative braking in electric drive systems and can enhance the overall system efficiency. The proposed scheme was analyzed through rigorous computer simulation and was experimentally validated.

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“…Comprehensive theoretical calculations and electric field analysis show that for the main insulation of the HV windings, the insulation thickness is designed to be 25 mm. (5) The electric field distribution of the HV windings under DC voltage is closely related to temperature. At a temperature of 20°C, the electric field between the coil shielding and inner shielding is relatively uniform, and the electric field of the coil shielding is slightly higher.…”

Section: Orcidmentioning

confidence: 99%

“…The HVDC breaker is key equipment for DC system fault clearing and operation mode switching, which is of great significance in ensuring system safe operation. The hybrid HVDC breaker composed of an ultra‐fast mechanical disconnector and power electronic components has become the mainstream technology in the development of HVDC breakers due to the advantages of fast breaking speed, flexible controllability and low loss [3–5].…”

Section: Introductionmentioning

confidence: 99%

“…The HVDC grid based on VSC-HVDC technology provides efficient and flexible solutions for improving the consumption of large-scale renewable energy such as wind and light, and promoting energy reform [1,2].The HVDC breaker is key equipment for DC system fault clearing and operation mode switching, which is of great significance in ensuring system safe operation. The hybrid HVDC breaker composed of an ultrafast mechanical disconnector and power electronic components has become the mainstream technology in the development of HVDC breakers due to the advantages of fast breaking speed, flexible controllability and low loss [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Insulation structure design and electric field simulation of 500 kV isolation energy supply transformer for HVDC breaker

et al. 2021

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The high-voltage isolated energy supply transformer (HIET) is the key component of the HVDC breaker, which is used for energy transmission and the potential isolation. There is a lack of research results that can meet engineering applications at home and abroad. The design of a 500 kV HIET with dry-type insulation is proposed, using 10 cascade connected 50 kV sub-transformers (STs), which uses silicon rubber suitable for DC voltage as the main insulation material. High-voltage (HV) winding of ST adopts double-shielding structure of coil semi-conductive shielding and inner semi-conductive shielding to improve electric field distribution. The simulation analysis of an electric field at different insulation thicknesses and temperatures shows that the electric field decreases with an increase in thickness of insulation. When the thickness is greater than 25 mm, the electric field reduction effect is significantly weakened. The electric field is closely related to temperature, when at 20°C, the electric field between double-shielding is relatively uniform. When at 70°C, the inner shielding electric field is much higher than coil shielding, and undergoes obvious reversal. In addition, the 500 kV HIET's electric field has been analysed. The 50 0kV HIET prototype has been manufactured and passed the type test, and successfully applied to the 500 kV Zhangbei DC grid project.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Novel Hybrid DC Circuit Breaker Based on Series Connection of Thyristors and IGBT Half-Bridge Submodules

Cited by 35 publications

References 30 publications

A Contribution to the Development of High-Voltage dc Circuit Breaker Technologies: A Review of New Considerations

A Contribution to the Development of High-Voltage dc Circuit Breaker Technologies: A Review of New Considerations

An Improved DC Circuit Breaker Topology Capable of Efficient Current Breaking and Regeneration

Insulation structure design and electric field simulation of 500 kV isolation energy supply transformer for HVDC breaker

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