Title :
Three-phase 36-step voltage converter system with an additional single-phase converter for voltage shaping
Author_Institution :
Dept. of Electr. & Electron. Eng., Ibaraki Univ., Hitachi, Japan
Abstract :
A novel double AC/DC converter system with 36-step input voltages is proposed. This system consists of two three-phase neutral-point-clamped (NPC) converters and an additional single-phase NPC converter. The main converters operate at a switching frequency of a power line frequency and the additional converter operates at a switching frequency of nine times that of the power line frequency. The proposed system is suitable for high-power applications because of a relatively low switching frequency and less distorted input voltages
Keywords :
AC-DC power convertors; harmonic distortion; power system harmonics; switching circuits; FACTS; double AC/DC converter system; less distorted input voltages; neutral-point-clamped converters; power line frequency; single-phase converter; switching frequency; three-phase 36-step voltage converter; voltage shaping; Analog-digital conversion; Circuits; Frequency conversion; Phase transformers; Pulse width modulation; Pulse width modulation converters; Switching converters; Switching frequency; Thyristors; Voltage;
Conference_Titel :
Transmission and Distribution Conference, 1996. Proceedings., 1996 IEEE
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-3522-8
DOI :
10.1109/TDC.1996.545955
