Analysis of DC-Link Operation Voltage of a Hybrid Railway Power Quality Conditioner and Its PQ Compensation Capability in High-Speed Cophase Traction Power Supply

Lao, Keng-Weng; Wong, Man-Chung; Dai, Ningyi; Wong, Chi-Yin; Lam, Chi-Seng

doi:10.1109/tpel.2015.2417356

Cited by 58 publications

(11 citation statements)

References 25 publications

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“…During the transformer station incident 10 trains can move at the trip frequency of 25 and 50 min. The 25 and 50 min because of the long feeding region that was fed by the other transformer stations after the incident. As long as the catenary voltage remains within the limits permitted by the standard, the electrical losses decrease, and the power quality and vehicle performance increase.…”

Section: Resultsmentioning

confidence: 99%

Creation of a dynamic model of the electrification and traction power system of a 25 kV AC feed railway line together with analysis of different operation scenarios using MATLAB/Simulink

Kocaarslan¹,

Akçay²,

Ulusoy³

et al. 2017

Turk J Elec Eng & Comp Sci

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Abstract:In this study, the simulation of an electrification system and traction power system of a 25 kV AC feed railway line was performed with all its subcomponents using MATLAB/Simulink. The power flow theory was used while modeling the railway electrification system. The transformer substation, catenary, rail, and vehicle were modeled together with the operational data. This model is used in order to determine the number of transformers, the distance of feeding centers, and the frequency of trips. The optimum design of electrification projects depends on these criteria.A dynamic structure was created with a new algorithm developed for vehicle load characteristics. The simulation of the electrification system and traction power system is performed before the analysis stage, together with the vehicle and other design parameters. This analysis is performed for the best performance of the systems. In this study, the power simulation of the railway was conducted for three different operation scenarios using MATLAB/Simulink.

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Section: Resultsmentioning

confidence: 99%

Creation of a dynamic model of the electrification and traction power system of a 25 kV AC feed railway line together with analysis of different operation scenarios using MATLAB/Simulink

Kocaarslan¹,

Akçay²,

Ulusoy³

et al. 2017

Turk J Elec Eng & Comp Sci

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“…; τ>0 (21) whereV ah ,V bh ,V ch are the equivalent voltage sources of the FBC; I Ah ,I Bh ,I Ch are the harmonic currents in MPBT's primary side; τ is a constant greater than zero. The advantages of the HPQC are mainly in the following aspects [42,44,45]:…”

Section: Hybrid Power Quality Control Systemmentioning

confidence: 99%

Power quality in high-speed railway systems

Zhang

2016

International Journal of Rail Transportation

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The proliferation of the new high-speed train has resulted in significant distortions in network voltage and current in both traction power supply system (TPSS) and the connected power system. The nonlinear and dynamic natures of the modern trains make the calculation and evaluation of such power quality (PQ) problems quite a difficult work. The typical PQ problems in highspeed railway (HSR) are the unbalance, reactive power, harmonic and harmonic resonance, low-frequency voltage fluctuation, etc. This article presents an overview on these power quality issues based on reported documents and field experiments, and further describes the modelling of the TPSS in China HSR systems, which is used to study the PQ issues. In order to improve the PQ performance, a number of mitigation approaches have been investigated and utilized through railway electrification history. Moreover, with the development of new power-electronics technologies, some novel solutions have been developed and implemented to achieve better PQ performance. Additionally, the article compares and summarizes different PQ improvements with respect to various power quality indices.

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“…Therefore, a novel traction power supply scheme needs to be developed for electrified railways in China, which can not only solve the transient hazards during locomotive passing PS, but also realize power quality compensation of traction substation [8,9]. In order to solve the problem of over-voltage and over-current, [10] proposes to combine resistance with the vacuum circuit breaker on the ground so as to accelerate the attenuation of over-voltage and over-current.…”

Section: Introductionmentioning

confidence: 99%

Novel Uninterruptible Phase-Separation Passing and Power Quality Compensation Scheme Based on Modular Multilevel Converter for Double-Track Electrified Railway

Tian

Zhou

2020

Energies

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Over-voltage and over-current problems of locomotives when passing phase separation and negative sequence current penetration seriously influence the safety of double-track electrified railway and public power systems. In order to solve these problems, this paper proposes a novel uninterruptible power supply phase separation passing and power quality compensation (UPSP-PQC) scheme for double-track electrified railway. Three working modes of UPSP-PQC are put forward, including uninterruptible phase separation passing mode, power quality compensation mode and uninterruptible phase separation passing priority, and power quality compensation optimum mode. A three-leg modular multilevel converter (MMC) topology of UPSP-PQC is proposed and the corresponding control strategy has been studied. PSCAD/EMTDC simulation is performed to verify the correctness and effectiveness of the proposed scheme and its control method.

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Analysis of DC-Link Operation Voltage of a Hybrid Railway Power Quality Conditioner and Its PQ Compensation Capability in High-Speed Cophase Traction Power Supply

Cited by 58 publications

References 25 publications

Creation of a dynamic model of the electrification and traction power system of a 25 kV AC feed railway line together with analysis of different operation scenarios using MATLAB/Simulink

Creation of a dynamic model of the electrification and traction power system of a 25 kV AC feed railway line together with analysis of different operation scenarios using MATLAB/Simulink

Power quality in high-speed railway systems

Novel Uninterruptible Phase-Separation Passing and Power Quality Compensation Scheme Based on Modular Multilevel Converter for Double-Track Electrified Railway

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