Fault current analysis of DC electric railway feeding systems using superconducting power cables

Qian, Kezhen; Ohsaki, Hiroyuki; Tomita, Masaru

doi:10.1109/icems.2014.7013475

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…Also, it has been concerned that the installation of superconducting cables would lead to increase of short circuit currents [8]. When a short circuit accident arises, a superconducting cable temperature will rapidly rise because of joule heating.…”

Section: Introductionmentioning

confidence: 99%

Feasibility study of superconducting power cables for DC electric railway feeding systems in view of thermal condition at short circuit accident

2016

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A superconducting power cable has merits of a high power transmission capacity, transmission losses reduction, a compactness, etc., therefore, we have been studying the feasibility of applying superconducting power cables to DC electric railway feeding systems.However, a superconducting power cable is required to be cooled down and kept at a very low temperature, so it is important to reveal its thermal and cooling characteristics. In this study, electric circuit analysis models of the system and thermal analysis models of superconducting cables were constructed and the system behaviors were simulated. We analyzed the heat generation by a short circuit accident and transient temperature distribution of the cable to estimate the value of temperature rise and the time required from the accident.From these results, we discussed a feasibility of superconducting cables for DC electric © 2016. This manuscript version is made available under the Elsevier user license http://www.elsevier.com/open-access/userlicense/1.0/ railway feeding systems. The results showed that the short circuit accident had little impact on the thermal condition of a superconducting cable in the installed system.

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Section: Introductionmentioning

confidence: 99%

Feasibility study of superconducting power cables for DC electric railway feeding systems in view of thermal condition at short circuit accident

2016

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High temperature superconducting cables and their performance against short circuit faults: current development, challenges, solutions, and future trends

Yazdani-Asrami

Seyyedbarzegar

Sadeghi

et al. 2022

Supercond. Sci. Technol.

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Along with advancements in superconducting technology, especially in high temperature superconductors (HTS), the use of these materials in power system applications is gaining outstanding attention. Due to the lower weight, higher current carrying capability, and the lower loss of HTS cables compared to conventional counterparts, they are among the most focused applications of superconductors in power systems. In near future, these cables will be installed as key elements not only in power systems but also in cryo-electrified transportation units, which take advantage of both cryogenics and superconducting technology simultaneously, e.g. hydrogen-powered aircraft. Given the sensitivity of the reliable and continuous performance of HTS cables, any failures, caused by faults, could be catastrophic, if they are not designed appropriately. Thus, fault analysis of superconducting cables is crucial for ensuring their safety, reliability, and stability, and also for characterising the behaviour of HTS cables under fault currents at the design stage. Many investigations were conducted on the fault characterisation and analysis of HTS cables in the last few years. This paper aims to provide a topical review on all of these conducted studies, It will discuss the current challenges of HTS cables and after that current developments of fault behaviour of HTS cables would be presented, and then we will discuss the future trends and future challenges of superconducting cables regarding their fault performance.

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Electromagnetic and thermal design of superconducting fault current limiters for DC electric systems using superconducting

Qian

Guo

Terao

et al. 2017

2017 20th International Conference on Electrical Machines and Systems (ICEMS)

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Fault current analysis of DC electric railway feeding systems using superconducting power cables

Cited by 4 publications

References 9 publications

Feasibility study of superconducting power cables for DC electric railway feeding systems in view of thermal condition at short circuit accident

Feasibility study of superconducting power cables for DC electric railway feeding systems in view of thermal condition at short circuit accident

High temperature superconducting cables and their performance against short circuit faults: current development, challenges, solutions, and future trends

Electromagnetic and thermal design of superconducting fault current limiters for DC electric systems using superconducting

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