Title :
A dual GTO current-source converter topology with sinusoidal inputs for high-power applications
Author :
Xiao, Yuan ; Wu, Bin ; Dewinter, Frank A. ; Sotudeh, Reza
Author_Institution :
Dept. of Electr. Eng., Ryerson Polytech. Inst., Toronto, Ont., Canada
Abstract :
A dual gate-turn-off thyristor current-source converter topology with sinusoidal inputs is proposed for high-power applications. The sinusoidal input current is realized by using pulsewidth modulation techniques to eliminate 11th and 13th harmonics and a transformer to cancel 5th, 7th, 17th, and 19th harmonics. Three switching patterns are proposed with a switching frequency of 360 or 420 Hz. The combination of these switching patterns provides a full-range control over the DC output current. Resonant modes of the proposed system are identified, and the criterion for the line capacitor design is provided. Simulation and experimental results are given to verify the theoretical analysis
Keywords :
PWM power convertors; electric current control; harmonics; resonant power convertors; switching circuits; thyristor convertors; 11th harmonics estimation; 13th harmonics estimation; 17th harmonics cancellation; 19th harmonics cancellation; 360 Hz; 420 Hz; 5th harmonics cancellation; 7th harmonics cancellation; AC motor drives; DC output current control; PWM techniques; dual GTO current-source converter topology; dual gate-turn-off thyristor; full-range control; high power rectifiers; high-power applications; line capacitor design; pulsewidth modulation techniques; resonant modes; sinusoidal input current; sinusoidal inputs; switching frequency; switching patterns; Power harmonic filters; Power system harmonics; Pulse modulation; Pulse width modulation; Pulse width modulation converters; Rectifiers; Switching converters; Switching frequency; Thyristors; Topology;
Journal_Title :
Industry Applications, IEEE Transactions on
