A Novel Bidirectional Solid-State Circuit Breaker for DC Microgrid

Wang, Yufeng; Li, Weilin; Wu, Xuanlyu; Wu, Xiaohua

doi:10.1109/tie.2018.2878191

Cited by 98 publications

(27 citation statements)

References 10 publications

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“…Then, the type 2 fault includes a material pole-to-pole fault and a pole-to-ground fault with 5 Ω transient resistance. The DCCBs employs the SSCBs (Solid-State Circuit Breakers) [27] and their operation times are all set as 30 μs [28]. The simulation results are shown in Figures 9, 10 and 11, where the blue lines are the measurement current and the red ones are the operation current.…”

Section: Simulation Results For Local Protectionmentioning

confidence: 99%

A Protection System for Improved Ring-Bus DC Microgrids

et al. 2019

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An improved system structure and a corresponding protection system are proposed in this paper, which aims at providing future DC microgrids with suitable protection ideas. At first, the ring-bus system is adjusted to balance the system control and protection and make the system more conventional for the equipment expansion. In addition, based on this structure, a protection system is established. It consists of two parts, which are local protection and pilot centralized protection. The local protection is designed for protecting the vulnerable power electronic components in converters and the pilot protection is mainly proposed for the fault isolation. The combination between two parts makes the whole system overcome the contradiction between protection speed and reliability and the method also takes the protection suitability into consideration. Finally, all the methods are verified by the simulation system based on the PSCAD /EMTDC.

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Section: Simulation Results For Local Protectionmentioning

confidence: 99%

A Protection System for Improved Ring-Bus DC Microgrids

et al. 2019

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“…Based on the IGBT, an SSCB that can quickly disconnect the AC current is proposed in this paper. The turning-off of the SSCB will cause a sudden change of the inductance voltage [20] , [21] ; therefore, an RCD voltage-balancing circuit and metal-oxide varistor (MOV) circuit are designed. Taking phase A as an example, the structure is illustrated in Fig.…”

Section: Proposed Pse Devicementioning

confidence: 99%

Design and test of a novel power electronic device for phase sequence exchange technology

Huang

et al. 2021

International Journal of Electrical Power & Energy Systems

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“…As renewable energy sources are becoming cheaper and costcompetitive with coal, the electrical energy distribution needs to change accordingly to meet the needs of the emerging energy mix [1]. In the contemporary research, it is widely accepted that the direct current (dc)-based networks are the most suitable interface for the integration of large numbers of renewable energy sources, storage devices and electric vehicles [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Design criteria of solid‐state circuit breaker for low‐voltage microgrids

Purgat

Shah²,

Blij

et al. 2021

IET Power Electronics

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Solid-state circuit breakers (SSCB) show great promise to become the key element in the protection of low-voltage direct current microgrids. SSCBs operate in the microsecond range and employ semi-conductor devices that have strict safe operation area limits. Therefore, the design of the SSCB needs to consider the effects of fault detection delays and semi-conductor safe operation area limitations. This paper derives SSCB design criteria that consider the effect of different detection methods with different detection delays under varying system constraints. The design space is investigated in a sensitivity analysis, which provides insights into the operation boundaries of SSCB and explains how a combination of fault detection methods can reduce the SSCB size. The insights from the theoretical and sensitivity analysis are used to propose an SSCB design flowchart. SSCB prototype is developed and tested in different scenarios under nominal grid voltage and current. The derived design constraints can be used for efficient SSCB design and also to evaluate the effects of different protection schemes on the required SSCB size.

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A Novel Bidirectional Solid-State Circuit Breaker for DC Microgrid

Cited by 98 publications

References 10 publications

A Protection System for Improved Ring-Bus DC Microgrids

A Protection System for Improved Ring-Bus DC Microgrids

Design and test of a novel power electronic device for phase sequence exchange technology

Design criteria of solid‐state circuit breaker for low‐voltage microgrids

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