Power quality issues on AC traction systems

Morrison, Robert E.

doi:10.1109/ichqp.2000.897765

Cited by 45 publications

(16 citation statements)

References 3 publications

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“…Many research papers are being published with regard to measurements, analysis, causes and effects of power quality problems in power grid and traction [82][83][84][85][86][87][88][89] and the power quality compensation in the railway traction.…”

Section: State Of the Artmentioning

confidence: 99%

Power Quality Conditioners for Railway Traction—a Review

Gunavardhini¹,

Chandrasekaran²

2016

Automatika

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Original scientific paperRailway traction is a more stochastic heavy load connected system. Due to the usage of ac-dc converters and ac-ac converters, the various power quality issues become the major problems in the electric system. This paper presents a review on power quality conditioners suitable for Railway traction based on the configuration, components involved and on the technical and economic considerations. More than 120 publications are listed in the reference for quick review. Poboljšanje kvalitete snage za željezničke sustave -pregled istraživanja. Željeznički električni sustav je prilično stohastički sustav s velikim opterečenjem. Zbog korištenja AC/DC i AC/AC pretvarača, problemi s kvalitetom isporučene energije predstavljaju glavne probleme električnih sustava. U ovome radu predstavljen je pregled područja vezano uz poboljšanje kvalitete energije za željezničke sustave ovisno o konfiguraciji, komponentama uključenim te o tehničkim i ekonomskim aspektima. Više od 120 radova navedeno je u popisu literature.Ključne riječi: metode za poboljšanje kvalitete energije, kompenzacija haromonika i reaktivne snage, aktivni filtri, šant hibridni filtar, kvaliteta energije

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Section: State Of the Artmentioning

confidence: 99%

Power Quality Conditioners for Railway Traction—a Review

Gunavardhini¹,

Chandrasekaran²

2016

Automatika

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“…It is then required the use of filters and unbalance compensators to ensure proper system operation and to raise the power quality [3].…”

Section: Introductionmentioning

confidence: 99%

Harmonic and balance compensation using instantaneous active and reactive power control on electric railway systems

Bueno

Aller

Restrepo

et al. 2010

2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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This work presents a general filtering and unbalance compensation scheme for electric traction systems. The proposed method uses an active filter controlled with the instantaneous active and reactive power, to reduce the harmonic current distortion and the negative sequence obtained by the system under unbalanced operation in steady state. The proposed filter is evaluated using open delta (V-V) and Scott transformers in the power substation. The scheme has been simulated and experimentally validated. Experimental and simulation results show the controller advantages and the applicability of the proposed method in railway systems .

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“…In electrified railway systems, electrical locomotives are treated as single-phase loads; the harmonic currents injected by locomotives can result in a range of traction system problems, including trackside over-voltages, increased voltage by a high factor and excessive low order harmonic currents being fed back into the HV supply [1]- [4]. Conventional passive power quality compensators, such as reactive power compensation capacitors and passive filters are single-phase equipment installed at feeder of a traction substation.…”

Section: Introductionmentioning

confidence: 99%

A Single Phase Multilevel Hybrid Power Filter for Electrified Railway Applications

Rahmani

Al‐Haddad

2006

2006 IEEE International Symposium on Industrial Electronics

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To improve the power quality of traction power system, a current control method implemented on a multilevel hybrid power filter (MHPF) to compensate harmonics and reactive power is presented. Regarding the traction substation as a compensating object, the power quality of a traction substation can be improved integrally. The hybrid filter consists of a passive filter and a low-rated multilevel power converter. The passive filter works not only as a harmonic filter tuned at the 3rd harmonic frequency, but also as a switching-ripple filters. The multilevel active power quality compensator uses source voltage reference to determine the compensating currents for single phase traction power systems. The rating of the switching devices for the active filter decreases with the use a multi-level inverter topology. Simulation results confirm the validity of the system and show that the adopted current control method is able to compensate reactive power and harmonics in the traction substation single phase 25 kV systems.Index Terms-Electrified railway, harmonics, reactive power, power quality compensator, hybrid multilevel active power filter.

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Power quality issues on AC traction systems

Cited by 45 publications

References 3 publications

Power Quality Conditioners for Railway Traction—a Review

Power Quality Conditioners for Railway Traction—a Review

Harmonic and balance compensation using instantaneous active and reactive power control on electric railway systems

A Single Phase Multilevel Hybrid Power Filter for Electrified Railway Applications

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