A Robust Multilevel Hybrid Compensation System for 25-kV Electrified Railway Applications
- 12 July 2004
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Electronics
- Vol. 19 (4), 1043-1052
- https://doi.org/10.1109/tpel.2004.830038
Abstract
On many electrified railway systems with single-phase 25-kV industrial frequency supply, the power quality can be particularly poor when conventional thyristor based locomotives are operating, and this constrains the amount of power that can be delivered to the locomotives. This paper presents a hybrid shunt compensation system consisting of alternatively a cascaded or a reduced topology multilevel active power filter, and a low rating passive damping filter. The active power filter is controlled by a novel hysteresis current regulation strategy, and both mitigates low-order voltage harmonic distortion along the feeder and provides root mean squared voltage support. The passive filter damps harmonic resonances that are typical in such 25-kV traction systems. The results show that the filter system can significantly increase traction system power transfer capacity with only a relatively small capital investment, allowing older thyristor based locomotives and increased traffic levels to be supported without necessarily requiring a complete system upgrade. Simulation and experimental results are included showing the performance of the filter for both steady state and transient conditions.Keywords
This publication has 9 references indexed in Scilit:
- Voltage form factor control and reactive power compensation in a 25 kV electrified railway system using a shunt active filter based on voltage detectionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Power quality issues on AC traction systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Implementation of three level hysteresis current control for a single phase voltage source inverterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A hysteresis current control for single-phase multilevel voltage source inverters: PLD implementationIEEE Transactions on Power Electronics, 2002
- Considerations of a shunt active filter based on voltage detection for installation on a long distribution feederIEEE Transactions on Industry Applications, 2002
- Single-phase neutral point clamped AC∕DC converter with the function of power factor corrector and active filterIEE Proceedings - Electric Power Applications, 2002
- Hybrid multilevel power conversion system: a competitive solution for high-power applicationsIEEE Transactions on Industry Applications, 2000
- High-performance current control techniques for application to multilevel high-power voltage source invertersIEEE Transactions on Power Electronics, 1992
- Specification of an overvoltage damping filter for the National Railways of ZimbabweIEE Proceedings B Electric Power Applications, 1989