Research on the Traction Power Supply System of Low Voltage DC Sliding Contact Line for Electric Mining Truck

Huang, Quanquan; Wu, Di; Wen, Chuanxin; Yun, Yang; Gu, Min

doi:10.1109/icpee51316.2020.9311056

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…The train cannot obtain power in the electric phase division. It will not only cause traction loss and slow down, but also produce transient processes such as over voltage, over current and arc [5]- [7]. Therefore, the electric phase division is the bottleneck restricting the train development to high speed and heavy load.…”

Section: Introductionmentioning

confidence: 99%

Study on the electromagnetic ring network in bilateral power supply mode of electrified railway

Wang,

Zhou

et al. 2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

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The electromagnetic loop network problem of power system is a kind of power network problem that evolves with the development of power grid. In order to avoid the further spread of the problems caused by the electromagnetic ring network, the open-loop operation mode is widely used in the power grid below 500kV to reduce the impact on the power system. In electrified railways, the same phase connection of adjacent traction substations can be achieved through bilateral power supply technology, which increases the terminal voltage level of the traction network. However, an electromagnetic loop network is formed at the 27.5kV traction feeder. The purpose of this paper is to study the generation mechanism of electromagnetic ring network and its influence to power system under bilateral power supply technology. Theoretical support and technical guidance are provided for engineering practice and trial operation.

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Section: Introductionmentioning

confidence: 99%

Study on the electromagnetic ring network in bilateral power supply mode of electrified railway

Wang,

Zhou

et al. 2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

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“…ALL-ELECTRIC aircraft uses batteries as the power source for the propulsion system where the key electric components operate at medium and low direct current (DC) voltage [1,2]. The all-electric aircraft is at a normal atmospheric pressure of 100 kPa when it takes off at full load on the ground.…”

Section: Introductionmentioning

confidence: 99%

Fluorinated PEEK and XLPE as Promising Insulation Candidates for the Propulsion System of All-electric Aircraft

Xing

Chen

Yang

et al. 2022

IEEE Trans. Dielect. Electr. Insul.

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This article investigates the surface electrical properties of PEEK and XLPE before and after the fluorination modification. The samples are tested for surface conductivity, surface morphology, and surface anti-aging characteristics. The samples are also tested for flashover voltage with ramping voltage under 100 kPa, 20 kPa and 10 kPa. The results showed that the surfaces of PEEK and XLPE become slightly smoother with the increase of fluorination time, and the conductivity increased with the increase of fluorination time. After fluorination, the surface of PEEK shows significant hydrophilicity, while the surface hydrophobicity of XLPE is slightly reduced after fluorination, and there is a trend of recovery with the extension of fluorination time. After fluorination, the surface anti-aging performance is significantly improved. Compared with the untreated samples, the fluorinated PEEK has a higher flashover voltage at 100 kPa, and the flashover voltage is slightly increased at 10 kPa and 20 kPa, while the flashover voltage of XLPE after fluorination shows a downward trend especially under low pressures. This study provides a reference for fluorinated polymers as promising candidates for the insulation systems for all-electric aircraft.

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Research on the Traction Power Supply System of Low Voltage DC Sliding Contact Line for Electric Mining Truck

Cited by 2 publications

References 4 publications

Study on the electromagnetic ring network in bilateral power supply mode of electrified railway

Study on the electromagnetic ring network in bilateral power supply mode of electrified railway

Fluorinated PEEK and XLPE as Promising Insulation Candidates for the Propulsion System of All-electric Aircraft

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