Researches on interruption characteristics of a hybrid HVDC circuit breaker

Li, Li; Zhang, Bide; Chun-en, Fang; Li, Wei; Xiao, Ren; Tishuai, Diao

doi:10.1109/icepe-st.2017.8188874

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…Energies 2019, 12, x 2 of 15 breaking and must be higher than the system voltage, so this method is only applicable to lower voltage levels [12,13]. The second method is to use the resonant current generated by the LC resonant commutating branch, superimposing it on the fast mechanical switch branch, causing its current to quickly cross zero and extinguish the arc, while transferring the current of the fast mechanical switching branch to the LC resonant commutation branch.…”

Section: Project Overviewmentioning

confidence: 99%

“…The first method is to use the arc voltage generated by the mechanical switch during the breaking process to achieve current zero crossing. In order to reduce the arcing time and reduce the influence on the ablation of the contacts, it is required that the arc voltage must be established quickly in the initial stage of the breaking and must be higher than the system voltage, so this method is only applicable to lower voltage levels [12,13]. The second method is to use the resonant current generated by the LC resonant commutating branch, superimposing it on the fast mechanical switch branch, causing its current to quickly cross zero and extinguish the arc, while transferring the current of the fast mechanical switching branch to the LC resonant commutation branch.…”

Section: Introductionmentioning

confidence: 99%

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Development and Application of a 10 kV Mechanical DC Circuit Breaker

Xiao

et al. 2019

Energies

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A DC circuit breaker is piece of core equipment for DC grid construction and can achieve fast isolation of DC faults in the grid. In this paper, based on the fault characteristics and protection requirements of an AC/DC hybrid distribution network, the technical parameters and topology structure of an inductance and capacitance (LC) resonant commutation-type mechanical DC breaker are proposed. Furthermore, an engineering prototype of the mechanical DC circuit breaker is developed, then a small current breaking test and a large current breaking test are carried out. The test results show that a 10 kA fault current can be interrupted within 10 ms by the engineering prototype. Finally, the engineering prototype of the mechanical DC circuit breaker is installed in the AC/DC hybrid distribution network project, and a current breaking test is carried out. The test results show that the mechanical DC circuit breaker has good running conditions, and the function and performance meet the engineering design and operation requirements.

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Section: Project Overviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and Application of a 10 kV Mechanical DC Circuit Breaker

Xiao

et al. 2019

Energies

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“…The development of the DC power grid requires reliable DC breakers, Hybrid circuit breakers that use fast switching. It is currently the focus of DC switching technology applications [4][5] . The turnoff fault current time of the power electronic switch is very short, so the speed of the mechanical switch is an important parameter for the DC breaker [6] .…”

Section: Introductionmentioning

confidence: 99%

Design and research of electromagnetic repulsion mechanism with double repulsion disks structure

ZHANG,

JIN,

et al. 2024

Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023)

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In DC breaker, Controllable lightning arrester, and other application scenarios, a fast mechanical switch adopts an electromagnetic repulsion mechanism. In the driving process, the peak value of the repulsion force will reach reaches hundreds of kN, which brings a great impact on the transmission mechanism and reduces the life of the mechanism. This paper designs an electromagnetic repulsion device with a dual repulsion disk structure, which can meet the requirements of reliability and redundancy of electromagnetic repulsion mechanisms. The electromagnetic repulsion mechanism has two repulsion disks fixed on the driving rod, and each repulsion disk has a separate driving coil and driving power supply. Compared with the electromagnetic repulsion mechanism with the single repulsion disk structure, the peak value of repulsion shared on each repulsion disk will be reduced by half. It is beneficial to reduce the difficulty of the mechanical strength design of the mechanical transmission structure and can realize the redundant design of the mechanism. The feasibility of the mechanism design and the influence of the main parameters on the mechanism were verified by simulation, and the engineering prototype was finally developed. In this paper, we provide an idea for the design of an electromagnetic repulsion mechanism.

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Discussion on Electric Power Supply Systems for All Electric Aircraft

et al. 2020

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The electric power supply system is one of the most important research areas within sustainable and energy-efficient aviation for more-and especially all electric aircraft. This paper discusses the history in electrification, current trends with a broad overview of research activities, state of the art of electrification and an initial proposal for a short-range aircraft. It gives an overview of the mission profile, electrical sources, approaches for the electrical distribution system and the required electrical loads. Current research aspects and questions are discussed, including voltage levels, semiconductor technology, topologies and reliability. Because of the importance for safety possible circuit breakers for the proposed concept are also presented and compared, leading to a initial proposal. Additionally, a very broad review of literature and a state of the art discussion of the wiring harness is given, showing that this topic comes with a high number of aspects and requirements. Finally, the conclusion sums up the most important results and gives an outlook on important future research topics. INDEX TERMS Aviation, aerospace electronics, MEA, AEA, electric power supply systems, dc-dc power converters, power semiconductor devices, wide bandgap semiconductors, high voltage direct current (HVDC), circuit breaker, hybrid circuit breaker.

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Researches on interruption characteristics of a hybrid HVDC circuit breaker

Cited by 6 publications

References 2 publications

Development and Application of a 10 kV Mechanical DC Circuit Breaker

Development and Application of a 10 kV Mechanical DC Circuit Breaker

Design and research of electromagnetic repulsion mechanism with double repulsion disks structure

Discussion on Electric Power Supply Systems for All Electric Aircraft

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