Title :
A Single Phase Multilevel Hybrid Power Filter for Electrified Railway Applications
Author :
Rahmani, Salem ; Al-Haddad, Kamal
Author_Institution :
Energy Conversion & Power Electron., Ecole de Technol. Superieure, Montreal, Que.
Abstract :
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 3 rd 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
Keywords :
electric current control; passive filters; power convertors; power harmonic filters; power supply quality; railway electrification; substations; current control method; electrified railway; harmonics compensation; low-rated multilevel power converter; multilevel active power quality compensator; multilevel inverter topology; passive filter; power quality improvement; reactive power compensation; single phase multilevel hybrid power filter; single phase traction power systems; switching-ripple filters; traction substation; Active filters; Hybrid power systems; Passive filters; Power filters; Power harmonic filters; Power quality; Power system harmonics; Rail transportation; Railway electrification; Substations; Electrified railway; harmonics; hybrid multilevel active power filter; power quality compensator; reactive power;
Conference_Titel :
Industrial Electronics, 2006 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0496-7
Electronic_ISBN :
1-4244-0497-5
DOI :
10.1109/ISIE.2006.295759