Title :
Self-commutated SVC for electric railways
Author :
Hirakawa, Masazumi ; Eguchi, Naoya ; Yamamoto, Mitsutoshi ; Konishi, Shigeo ; Makino, Yoshio
Author_Institution :
Central Japan Railway Co., Tokyo, Japan
Abstract :
The authors have developed a self-commutated static VAr compensator (SVC) to suppress voltage fluctuations in the transmission line of the Tokaido Shinkansen railway. This is the first application of self-commutated SVCs for railway systems. The SVC, which has a system capacity of 48MVA, allows the compensation of three-phase voltage unbalance in addition to power factor improvement. A high power GTO and a new control method using DDC are incorporated into the system. This paper describes the configuration and control system of the SVC and also reports test results obtained under actual load conditions
Keywords :
commutation; direct digital control; power system control; power system harmonics; power transmission lines; railways; static VAr compensators; thyristor convertors; 48 MVA; DDC; SVC; control system; electric railways; load; power factor improvement; self-commutated static VAr compensator; three-phase voltage; transmission lines; voltage fluctuations; Fluctuations; Power systems; Pulse width modulation; Pulse width modulation inverters; Rail transportation; Reactive power; Static VAr compensators; Substations; Thyristors; Voltage control;
Conference_Titel :
Power Electronics and Drive Systems, 1995., Proceedings of 1995 International Conference on
Print_ISBN :
0-7803-2423-4
DOI :
10.1109/PEDS.1995.404979
