Control Method of DC-DC Converters for High-Voltage Feeding Systems

Yoshii, Tsurugi; Morimoto, Hiroaki; Ishiyama, Takuma; Yachida, Takayuki; Akashi, Daisuke

doi:10.1541/ieejias.142.222

Cited by 2 publications

(2 citation statements)

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“…The V T just at the point of a regenerating train must be higher than the V T at the points of adjacent power-Fig. 2 Similarity between AT feeding system and highvoltage DC feeding system with DC-AT control (DC-AT feeding system) [1] Fig. 3 Potential gradient in DC-AT feeding system [1] QR of RTRI, Vol.…”

Section: Effectofimprovingregenerativepowerinterchangementioning

confidence: 99%

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<b>DC-DC Converter Control Method for High Voltage DC Feeding System to Improve Use of Regenerative Power</b>

Yoshii¹,

OIDE²

2022

QR of RTRI

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A high voltage DC feeding system, which consists of higher-voltage feeders and DC-DC converters in addition to an existing feeding circuit, is assumed to improve the performance of power supply to trains without changing the nominal voltage of contact lines and onboard traction systems. In this system, the method for controlling the converter is an important element which must be taken into consideration to maximize energy savings. In this paper, we propose a converter control method to make the voltage ratio constant between the contact line and the higher-voltage feeder. In this paper, the high voltage DC feeding system with this converter control method is called a "DC-AT feeding system." We evaluated the energy savings of this system through simulation, and case studies on a model line confirmed that this system can reduce energy consumption by 4.5% at most, and on average 3.5%, compared to conventional DC feeding systems.

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Section: Effectofimprovingregenerativepowerinterchangementioning

confidence: 99%

“…2 Similarity between AT feeding system and highvoltage DC feeding system with DC-AT control (DC-AT feeding system) [1] Fig. 3 Potential gradient in DC-AT feeding system [1] QR of RTRI, Vol. 63, No.…”

Section: Effectofimprovingregenerativepowerinterchangementioning

confidence: 99%