Title :
Investigation of low cost control schemes for a selected 3-level switched mode rectifier
Author :
Ide, P. ; Froehleke, N. ; Grotstollen, H.
Author_Institution :
Paderborn Univ., Germany
Abstract :
Two low-cost modulation schemes are presented for the control of a 3-level switched mode rectifier. One is based on a hysteresis controller and the other on a double ramp comparison. The latter control concept implemented by common PWM ICs yields preferable characteristics for the power interface to telecommunication equipment such as high power density, due to reduced volume for electromagnetic compatibility (EMC) and input current filtering, high control dynamics, low harmonic distortion (THD) and switching losses, which are comparable to those achieved by space vector control, but with less costs and complexity
Keywords :
PWM power convertors; electromagnetic compatibility; harmonic distortion; power system harmonics; rectifying circuits; switched mode power supplies; telecommunication power supplies; voltage control; 3-level switched mode rectifier; PWM IC; double ramp comparison; electromagnetic compatibility; high control dynamics; high power density; hysteresis controller; input current filtering; low cost control schemes; low harmonic distortion; power interface; switching losses; telecommunication equipment; Costs; Electromagnetic compatibility; Filtering; Harmonic distortion; Hysteresis; Power harmonic filters; Rectifiers; Space vector pulse width modulation; Telecommunication control; Telecommunication switching;
Conference_Titel :
Telecommunications Energy Conference, 1997. INTELEC 97., 19th International
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3996-7
DOI :
10.1109/INTLEC.1997.645920
