A Novel Mixture Solid-State Switch Based on IGCT With High Capacity and IGBT With High Turn-off Ability for Hybrid DC Breakers

Zhang, Xiangyu; Yu, Zhanqing; Zhao, Biao; Chen, Zhengyu; Lv, Gang; Huang, Yulong

doi:10.1109/tie.2019.2928279

Cited by 44 publications

(12 citation statements)

References 18 publications

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“…SS is mainly composed of FPEDs through series and parallel connection, and the most commonly used FPEDs are GTO, IGCT, IGBT, and IEGT. According to the literature [9], the interruption process of NHCB mainly includes vacuum arc commutation and the interruption process of SS. The interruption process of NHCB is shown in Figure 2.…”

Section: Principle Of Nhcbmentioning

confidence: 99%

“…When the IGBT module is turned on, the difficulty of vacuum arc commutation decreases rapidly, so the vacuum arc voltage also decreases accordingly. Meanwhile, to better describe the influence of parameters L s , I ce , and R s on T c , in the future work, the influence of the parameters L s , I ce , and R s on the vacuum arc voltage should be considered in Formula (9).…”

Section: Influence Of the Main Parameters On The Vacuum Arc Voltagementioning

confidence: 99%

“…According to the difference of the current commutating method from MS to SS, hybrid DC circuit breakers based on power electronics technology are divided into forced-commutate hybrid DC circuit breakers (FHCBs) and natural-commutate hybrid DC circuit breakers (NHCBs) [7,8]. The FHCB is mostly used in the field of voltage above 10 kV [9,10], and one of the most representative FHCBs is the 320 kV/2.6 kA hybrid DC circuit breaker developed by ABB in 2011 [11]. NHCB is mostly used in the voltage field of 10kv and below, and there has been a lot of research on the NHCB [12].…”

Section: Introductionmentioning

confidence: 99%

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Research on Vacuum Arc Commutation Characteristics of a Natural-Commutate Hybrid DC Circuit Breaker

et al. 2020

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Vacuum arc commutation is an important process in natural-commutate hybrid direct current (DC) circuit breaker (NHCB) interruption, as the duration of vacuum arc commutation will directly affect the arcing time and interrupting time of NHCB. In this paper, the vacuum arc commutation model of NHCB was established by simplifying solid-state switch (SS) and vacuum arc voltage. Through theoretical analysis and experiments, the vacuum arc commutation characteristics of NHCB were studied. The mathematical formula of the effect of main parameters on the duration of vacuum arc commutation is obtained, and the changing law of the influence of the main parameters on the duration of the vacuum arc commutation is explored. The concept of vacuum arc commutation coefficient is proposed, and it is a key parameter that influences the vacuum arc commutation characteristics. The research on the characteristics of vacuum arc commutation can provide theoretical foundation for the structure and parameter optimization of NHCB and other equipment that uses vacuum arc commutation.

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Section: Principle Of Nhcbmentioning

confidence: 99%

Section: Influence Of the Main Parameters On The Vacuum Arc Voltagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research on Vacuum Arc Commutation Characteristics of a Natural-Commutate Hybrid DC Circuit Breaker

et al. 2020

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“…The 5SHY 42L6500 type IGCT is used as a commutated branch in the previous research 10 kV natural commutation hybrid DCCB [19]- [21]. The voltage drop of a single IGCT is drop sh slope = + u u iR (25) where sh u is the threshold voltage; Rslope is the on-state resistance.…”

Section: B Accelerating Experiments Of Prototypementioning

confidence: 99%

Research on Influence Factors and Acceleration Methods of Current Commutation

et al. 2020

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The vacuum interrupter is widely used due to the advantages of no arc-extinguishing medium and high insulation strength. However, the arc voltage generated by the commonly used CuCr contacts is low. In hybrid DC circuit breakers (DCCB), hybrid automatic transfer switches (ATS), medium voltage compound switches and other fields, it is difficult to rely on vacuum arc to complete natural commutation, which restricts the development of hybrid switches. In order to understand the current commutation process deeply, the influence of internal and external factors on the current commutation is analyzed by experiments. The coupling mathematical model of arc-commutated branch is established. The criterion for the success of current commutation is summarized. The parameters of the arc model are reconstructed through repeated breaking experiments to explore the influence of internal factors on the arc characteristics. Based on this, the influence law of arc current, contacts gap and transverse magnetic field (TMF) is analyzed. An acceleration method of current commutation is proposed. A prototype for accelerating experiments with an electromagnetic repulsion mechanism and TMF is developed. The commutated branch equivalent to practical applications is built. The experimental results show that the commutation time is effectively shortened and meets the requirements of practical applications through the acceleration method, which provides new thought for the development of hybrid switches.

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“…In the literature, several different, promising, and very new conceptualizations of DC breakers have been proposed [17][18][19][20] that are not addressed in this paper.…”

Section: Introductionmentioning

confidence: 99%

Design of a Solid-State Circuit Breaker for a DC Grid-Based Vessel Power System

et al. 2019

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Electric propulsion and integrated hybrid power systems can improve the energy efficiency and fuel consumption of different kinds of vessels. If the vessel power system is based on DC grid distribution, some benefits such as higher generator efficiency and lower volume and cost can be achieved. However, some challenges remain in terms of protection devices for this kind of DC grid-based power system. The absence of natural zero crossing in the DC current together with the fast and programmable breaking times required make it challenging. There are several papers related to DC breaker topologies and their role in DC grids; however, it is not easy to find comprehensive information about the design process of the DC breaker itself. In this paper, the basis for the design of a DC solid-state circuit breaker (SSCB) for low voltage vessel DC grids is presented. The proposed SSCB full-scale prototype detects and opens the fault in less than 3 µs. This paper includes theoretical analyses, design guidelines, modeling and simulation, and experimental results.

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A Novel Mixture Solid-State Switch Based on IGCT With High Capacity and IGBT With High Turn-off Ability for Hybrid DC Breakers

Cited by 44 publications

References 18 publications

Research on Vacuum Arc Commutation Characteristics of a Natural-Commutate Hybrid DC Circuit Breaker

Research on Vacuum Arc Commutation Characteristics of a Natural-Commutate Hybrid DC Circuit Breaker

Research on Influence Factors and Acceleration Methods of Current Commutation

Design of a Solid-State Circuit Breaker for a DC Grid-Based Vessel Power System

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