Harmonic Resonance Assessment to Traction Power-Supply System Considering Train Model in China High-Speed Railway

He, Zhengyou; Hu, Haitao; Zhang, Yangfan; Gao, Shibin

doi:10.1109/tpwrd.2013.2284233

Cited by 130 publications

(84 citation statements)

References 21 publications

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“…1. In China, single-phase main transformers of 220/2 kV 9 27.5 kV are usually applied in high-speed railways [7]. In each AT post or section post, two ATs are usually installed: one is in service and the other in reserve.…”

Section: System Description and Short-circuit Test Proceduresmentioning

confidence: 99%

“…CTS150 Positive feeder: LBGLJ-240/30 Protection wire: LBGLJ-120/20 Integrated grounding wire: TJ70 Contact line height: 5300 mm System height: 1600 mm The spatial arrangement of the traction network is shown in Ref. [7].…”

Section: Case Studiesmentioning

confidence: 99%

“…Current deviations (7-9), (11-14) (7-11), (13), (14) (7-10), (12-14) (7-12), (14) (7-9), (12)(13)(14), (21-23) (7)(8)(9)(10)(11), (14) evaluation algorithm in Refs. [6,7] is used, the short-circuit currents are ideally consistent.…”

Section: Casementioning

confidence: 99%

“…[6,7] is used, the short-circuit currents are ideally consistent. According to the proposed algorithm, the indices are shown in Table 4.…”

Section: Casementioning

confidence: 99%

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Consistency evaluation of the current distribution of short-circuit tests in AT feeding systems for high-speed railways

Liu

2018

J. Mod. Transport.

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To improve the accuracy of fault location system, several short-circuit tests need to be conducted before being brought into service in autotransformer (AT) feeding systems for high-speed railways in China. However, no systematic algorithm yet exists to evaluate the consistency of the current distribution of short-circuit tests. A methodology is proposed in this paper to address this problem. Based on Kirchhoff's current law and the generalized method of symmetrical components, the current deviations of the AT feeding systems are analysed and then normalized with the short-circuit current as they vary greatly with systems and short-circuit sites. It is also found that the short-circuit current varies with the calculation methods, and its unbiased standard deviation also reflects the consistency of the short-circuit test. The mean and maximum of the current deviations, as well as the unbiased standard deviation of the short-circuit current, show the consistency of the short-circuit test from different aspects, although the last two items are highly relevant. Therefore, a unified evaluation index is defined as the sum of the three items, and then applied in two case studies to test its performance. The results show that, the proposed index can clearly distinguish the consistency of the short-circuit tests and may be used to sort the short-circuit tests for fault location systems. Besides, some short-circuit tests may have very poor consistency indices, and thus are not applicable to the tuning of fault location systems. In the authors' opinion, the determination of the threshold of the proposed index needs further investigation.

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Section: System Description and Short-circuit Test Proceduresmentioning

confidence: 99%

Section: Case Studiesmentioning

confidence: 99%

Section: Casementioning

confidence: 99%

“…[6,7] is used, the short-circuit currents are ideally consistent. According to the proposed algorithm, the indices are shown in Table 4.…”

Section: Casementioning

confidence: 99%

See 2 more Smart Citations

Consistency evaluation of the current distribution of short-circuit tests in AT feeding systems for high-speed railways

Liu

2018

J. Mod. Transport.

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“…The vehicle includes a traction system transformer, three-phase PWM inverter, and asynchronous engine [16]. The asynchronous engine may generate electricity by working as a generator during regenerative braking [17].…”

Section: Ac Feeding Railway Modelmentioning

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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Research on electromagnetic transient process in articulated split-phase insulator of high-speed railway considering viaduct's electrical coupling

Wang

Liu

et al. 2017

Int Trans Electr Energ Syst

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Summary In single‐phase alternating current (AC) traction power supply system, to balance 3‐phase load of power system, each phase of electricity is used in rotation. Based on the 7‐section articulated split‐phase insulator of China Beijing‐Tianjin high‐speed railway line, different electromagnetic transient processes are deeply analyzed considering pantograph arc and viaduct's electrical coupling in this paper. First, based on the lumped parameter model, the process of high‐speed train passing the articulated split‐phase region, concluding the upper viaduct part and the lower viaduct part, is deeply studied. Second, through state‐space technique, 4 independent electromagnetic transient processes in articulated split‐phase region of high‐speed railway are derived and analyzed thoroughly considering the impact of pantograph arc and viaduct. Finally, the integral transient process is accurately simulated and analyzed by ATP‐EMTP software under several circumstances, such as different topologies, initial phase and phase difference of feeders, and specific suppression overvoltage measures. The independent and integral comparison results illustrate that the coupled viaduct can lead to the more complex topologies and electromagnetic transient processes. Also, the coupled viaduct can play a significant topology discharge and pantograph overvoltage suppression role for the high‐speed train passing articulated split‐phase region.

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Harmonic Resonance Assessment to Traction Power-Supply System Considering Train Model in China High-Speed Railway

Cited by 130 publications

References 21 publications

Consistency evaluation of the current distribution of short-circuit tests in AT feeding systems for high-speed railways

Consistency evaluation of the current distribution of short-circuit tests in AT feeding systems for high-speed railways

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

Research on electromagnetic transient process in articulated split-phase insulator of high-speed railway considering viaduct's electrical coupling

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