Application of Electronic Frequency Converter to the Shinkansen Railyard Power Supply

Shimizu, Toshimasa; Kunomura, Ken; Kai, Masahiko; Onishi, Mitsuru; Masuzawa, Hiroshi; Miyajima, Hiromi; Otsuki, Midori; Tsuruma, Yoshinori

doi:10.1541/ieejjia.4.315

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…Therefore, rotary frequency changers (RFCs) were installed to make 60 Hz AC for traction power supply system. Recently, a static frequency converter, which is called EFC (electronic frequency converter), has become feasible, and EFCs have been partially installed at four FCs (frequency conversion substations), namely at Oi FC, Tsunashima FC, Nishisagami FC, and Numazu FC for energy saving and less maintenance. Table shows specifications of EFC at Oi FC .…”

Section: Power Electronics Solutions For Fixed Installationsmentioning

confidence: 99%

Recent trends in power electronics applications as solutions in electric railways

Hayashiya

Kondo

2020

IEEJ Transactions Elec Engng

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Certain applications of power electronics for railway vehicle traction systems and fixed installations are reviewed and future possibilities considering technical and social trends around railway industry are mentioned in this paper. First of all, some particularities of railway load and traction power supply system are summarized as problems to be solved by power electronics technologies. Such technologies for fixed installations and vehicle traction systems are presented and future possibilities for higher performance, minimization, and improved resilience of railway system are pointed out. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Power Electronics Solutions For Fixed Installationsmentioning

confidence: 99%

Recent trends in power electronics applications as solutions in electric railways

Hayashiya

Kondo

2020

IEEJ Transactions Elec Engng

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“…EFC is adopted to replace RFC to realize the connection between 50 Hz power grid and 60 Hz traction network in Tokaido Shinkansen of Japan. 30,31 EFC is an efficient power conversion equipment and its control is simple, but it adopts too many transformers. MMC-based scheme was proposed to apply in the traction substation.…”

Section: Introductionmentioning

confidence: 99%

A three‐phase symmetric converter in AC electric railway systems for power quality and energy efficient improvement

Linwei

Wang

2020

Int Trans Electr Energ Syst

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This paper proposes a three-phase symmetric converter that is connected between the power grid and the traction network. It can solve power quality problems such as negative sequence current, reactive power, and harmonics, thus reducing the interaction between the power supply and the user. Moreover, it supports the continuous co-phase power supply, which can remove all the neutral sections in electric railways, to improve energy utilization. Its control is simple and suitable for electric railways. We discuss the system configuration in detail, including the topology, the calculation of parameters, etc. In addition, the proposed scheme is compared with the traditional traction power supply system, railway power conditioner, and the co-phase power supply system based on active power compensator, as well as the modular multilevel converter-based scheme, respectively, to highlight its advantages. We design the control strategy, which consists of the input side and the output side. In the control part, we focus on the special problems for the application of this scheme in traction power supply systems, and propose the control strategy based on the characteristics of the traction load. Simulation is carried out and a 45 kVA low power platform is fabricated and tested to validate the effectiveness of the scheme. The results show that it has nice performance in solving the power quality problems of electric railways.

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“…In addition, it has neutral potential drift problem. In order to solve the problems of the severe voltage drop caused by dense train schedule in the Tokaido Shinkansen, the power transmission equipment electronic frequency converter (EFC) based on three-phase AC to single-phase AC power conversion was equipped in the traction network in Japan [25], [26]. It has the ability to solve the problem of neutral section, but this function is not applied in practice.…”

Section: Introductionmentioning

confidence: 99%

A Three-Phase to Single-Phase AC-DC-AC Topology Based on Multi-Converter in AC Electric Railway Application

Wang

et al. 2019

IEEE Access

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An AC-DC-AC topology based on multi-converter is proposed in this paper. It can match the capacity of the converter for high voltage and large power applications. This structure is not only suitable for solving the power quality problems of electrified railways, but also has its own superiorities. Its architecture and advantages in the traction application are analyzed in depth, and the design calculation of the main elements is presented. The control system of the proposed topology is designed, where dc current feedforward control is adopted to relieve the impact of the load mutation on the system. Its modular structure and simple current sharing control provide convenience for the capacity expansion. The software simulation and experiment based on a 45kVA prototype validate the proposed structure, and they are all compared with the traditional power supply systems. The simulation results indicate that this topology can not only satisfy the voltage and power requirements of traction load and solve the power quality problems, but also have its own superiorities in the application of electrified railways. The experimental results verify the correctness and validity of the scheme. INDEX TERMS Electrified railways, power quality, series-parallel structure, back-to-back converter, current sharing control.

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Application of Electronic Frequency Converter to the Shinkansen Railyard Power Supply

Cited by 8 publications

References 6 publications

Recent trends in power electronics applications as solutions in electric railways

Recent trends in power electronics applications as solutions in electric railways

A three‐phase symmetric converter in AC electric railway systems for power quality and energy efficient improvement

A Three-Phase to Single-Phase AC-DC-AC Topology Based on Multi-Converter in AC Electric Railway Application

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