Proceedings ArticleDOI
Development of railway static power conditioner used at substation for Shinkansen
H. Morimoto,M. Ando,Yoshifumi Mochinaga,Toshikazu Kato,J. Yoshizawa,T. Gomi,T. Miyashita,S. Funahashi,M. Nishitoba,S. Oozeki +9 more
- Vol. 3, pp 1108-1111
TLDR
In this article, a railway static power conditioner (RPC) is proposed to balance the effective power of different phases and compensate reactive power and harmonics in high-speed AC electric railways.Abstract:
High-speed AC electric railways, such as Shinkansen, require large single-phase AC electric power. So, if the short circuit capacity of the power system is not large enough, therefore, railway operation causes large voltage unbalance at the three-phase side. In this paper, a railway static power conditioner (RPC), a new system for reducing voltage unbalance and fluctuation, is described. To reduce voltage unbalance and fluctuation, the RPC balances effective power of different phase and compensates reactive power and harmonics. It enables operation of high-speed AC electrified railways even if the short circuit capacity of the power system is rather small.read more
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Proceedings ArticleDOI
Transformerless power router used as load balancer and uninterruptible power supply for auto-passing neutral section
TL;DR: In this article, a transformerless power router is proposed for high speed electric railway, which reduces the negative sequence currents injected into utility power system as well as providing uninterruptible power supply to the neutral section.
Journal ArticleDOI
Ground Fault Analysis and Grounding Method of Static Power Converters in Flexible AC Traction Power Supply Systems
TL;DR: In this paper , a T-shaped grounding method is proposed to solve the problem of fault current and capacitor overvoltage in flexible traction power supply system (FTPSS), and a comprehensive scheme of grounding protection is designed to detect and isolate serious faults.
Proceedings ArticleDOI
A Brief Overview of The Status and Prospects of Railway Static Power Conditioner
TL;DR: The electrified railway static power conditioner not only has the ability to control the two-phase active power, reactive power and harmonic current of the traction substation and the basic functions of reducing the negative sequence but also can complete the active power fusion ofThe traction power supply arm on both sides.
Proceedings ArticleDOI
Virtual neutral point selection for three-leg railway power quality conditioner
TL;DR: In this paper, the authors proposed a modeling method for three-leg railway power quality conditioner, by means of selecting a virtual neutral point, which replaced the two higher actual phase voltages by three lower virtual ones, which helps the converter lower the requirement of dc-link voltage level and the number of series-connected devices by about 30%.
Proceedings ArticleDOI
Evaluation and Analysis of Impedance Matching Transformer for HBC-Power Conditioner Controller
TL;DR: In this paper, the authors proposed an algorithm to generate reference current composing of active, reactive and harmonic current which compensates negative-sequence and harmonic currents on the three-phase side.