A study on estimation of arc parameters for low voltage DC arc breaking process

Tsusaka, Akihiro; Hasegawa, K.; Matsumura, Toshiro; Yukita, Kazuto; Goto, Yasuyuki; Miyamoto, Atsushi; Ito, Hiroyuki; Yokomizu, Yasunobu

doi:10.1109/icdcm45535.2019.9232762

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, HSS needs millisecond-level opening and closing to achieve fast switching of the third station and fast isolation of line faults. This is the origin of the name "DC high-speed switch" [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Simulation analysis and experimental verification of key performance of ±800kV DC high speed switch for multi-terminal DC transmission systems

Zhang,

Li,

Yang

et al. 2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

View full text Add to dashboard Cite

This paper addresses the development of High Voltage Direct Current high-speed switch (HSS) for multi-terminal DC transmission systems. The performance of HSS significantly affects the power transmission capability and operational flexibility of these systems. To enhance the performance of ±800 kV HSS products, this paper discusses key technologies related to insulation, DC no-load charging current breaking, and DC arc withstand. The paper presents the latest research results using simulation and experimental methods. The research findings contribute to improving power continuity and safe and stable operation of multi-terminal DC transmission systems.

show abstract

Section: Introductionmentioning

confidence: 99%

Simulation analysis and experimental verification of key performance of ±800kV DC high speed switch for multi-terminal DC transmission systems

Zhang,

Li,

Yang

et al. 2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

View full text Add to dashboard Cite

show abstract

“…There are many studies on the evolution characteristics of air arcs [14][15][16][17]. However, most of them focus on low-voltage circuit breakers, which rarely involving disconnectors.…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis of Arc Interruption Characteristics in Disconnector

Yin

Ge³

et al. 2021

Machines

View full text Add to dashboard Cite

Wind and solar energy are examples of clean energy that are widely developed and utilized in order to achieve the goal of carbon neutrality. Higher requirements for the safety and reliability of the power grid are put forward after they are connected to it. In the case of disconnectors, as the power system’s protection equipment, their arc interruption characteristics are closely tied to the safety and reliability of the power system. In addition, a disconnector is required to be able to break the DC arc in the photovoltaic power generation system. Therefore, this paper focuses on the arc evolution characteristics in disconnectors. A magnetohydrodynamics (MHD) model of disconnectors was built. In this model, not only are the coupling of the electromagnetic field and the airflow field considered, but also the characteristics of the external circuit. Therefore, not only can arc evolution characteristics be obtained through this simulation model, but the breaking performance will also be directly obtained. The temperature, pressure and velocity distribution are obtained to analyze the evolution process. The curve of current versus time is calculated to analyze the breaking performance. The evolution characteristics of AC and DC arcs in the disconnector are analyzed by calculation and comparison. This provides theoretical guidance for the optimal design of DC disconnectors through simulation analysis.

show abstract