Stability Improvement of DC Power System According to Applied DC Circuit Breaker Combined With Fault Current Limitation Characteristics of Superconductivity

Choi, Hye‐Won; Jeong, In-Sung

doi:10.1109/tasc.2018.2841931

Cited by 17 publications

(7 citation statements)

References 3 publications

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“…With the high degree of power electronics of the DC power grid, the low inertia nature of the DC system has caused many adverse effects on the development of the fault current (Mokhberdoran et al, 2017a;Choi et al, 2018;Mohan et al, 2021). If the fault is not removed in time, the electrical equipment will be burned and the fault scope will be expanded.…”

Section: Introductionmentioning

confidence: 99%

Multi-port DC circuit breaker based on dual capacitor current limiting and energy sink

Lou²,

Yin³

et al. 2023

Front. Energy Res.

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The coupling relationship between the removal of the fault current and the dissipation of the residual energy of the fault line during the fault isolation process of the multi-port capacitive current-limiting DC circuit breaker prolongs the breaking time of the fault to a certain extent. In order to solve the above problems, this paper proposes a multi-port DC circuit breaker based on dual-capacitor current limiting and energy sinking on the premise of decoupling the fault current attenuation and removal process and the fault line residual energy discharge process. Further reduce the fault breaking time and equipment withstand voltage requirements of the DC circuit breaker. Firstly, the topology and working principle of the proposed circuit breaker are analyzed, and then the parameters in the topology are designed. Then a simulation model is built in the PSCAD/EMTDC simulation platform to verify the fault breaking performance and breaking time. The effect of decoupling the fault current clearing process and the fault line residual energy discharge process on the effectiveness of shortening the fault breaking time is verified.

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Section: Introductionmentioning

confidence: 99%

Multi-port DC circuit breaker based on dual capacitor current limiting and energy sink

Lou²,

Yin³

et al. 2023

Front. Energy Res.

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“…When a short-circuit earth fault happens, a half-bridge MMC submodule cannot isolate the short-circuit earth fault. Therefore, in order to avoid blocking the MMC converter if the short-circuit earth fault happens, it is necessary to design a dc circuit breaker to rapidly isolate the short-circuit earth fault [7,8].…”

Section: Introductionmentioning

confidence: 99%

Design of ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker

Liu

Yao

Chen

et al. 2022

IET Generation Trans & Dist

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This paper proposes a ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker. In this paper, the interruption processes of the main branch, transferring branch, and MOV (metal oxide varistors) branch are studied by PSCAD/EMTDC computer simulation. Simulation results indicate that an insulated gate bipolar transistor (IGBT) in the main branch will withstand the highest electrical stress (3305 V/2200 A) and the IGBT in the transferring branch will withstand the highest voltage stress (3327 V). Finally, the ± 535 kV hybrid HVDC circuit breaker prototype is manufactured; the test is carried out. Test results suggest that the ± 535 kV hybrid HVDC circuit breaker prototype developed for the Zhangbei four‐terminal voltage source converter (VSC)‐HVDC project can interrupt a ± 25 kA (high current) within 2.84 ms. The simulation results agreed very well with the actual test results of our novel ± 535 kV hybrid HVDC circuit breaker. The novel ± 535 kV hybrid HVDC circuit breaker functioned exceptionally well in achieving fast short‐circuit current isolation.

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“…The rising fault current rate is high because of the small inductance, which demands fast interruption technology [18]. Thus, the recognition of the M-HVdc grid as a reliable and efficient network is forcefully subjected to the disposal of HVdc circuit breakers (DCCBs), making them one of the keys empowering technology [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

HVdc Circuit Breakers: Prospects and Challenges

et al. 2021

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The integration of offshore wind farms has revitalized the interest in multi–terminal high voltage direct current (M–HVdc) transmission grids. HVdc breakers’ importance has increased as M–HVdc grids are now a commercial truth. Several HVdc circuit breaker technologies have been developed, published, and appeared as prototypes for HVdc networks. This paper summarizes the HVdc breaker technologies from the last two decades, distributed mainly in literature. A comparison of various state–of–the–art HVdc breakers is presented. Further, areas are identified where further research and development are required. The goal is to provide primary challenges and prospects in the HVdc breaker field.

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Stability Improvement of DC Power System According to Applied DC Circuit Breaker Combined With Fault Current Limitation Characteristics of Superconductivity

Cited by 17 publications

References 3 publications

Multi-port DC circuit breaker based on dual capacitor current limiting and energy sink

Multi-port DC circuit breaker based on dual capacitor current limiting and energy sink

Design of ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker

HVdc Circuit Breakers: Prospects and Challenges

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