Title :
Quasi 12-pulse rectifier for adjustable speed drives
Author :
Hansen, Steffan ; Borup, Uffe ; Blaabjerg, Frede
Author_Institution :
Danfoss Drives A/S, Graasten, Denmark
Abstract :
This paper presents a quasi 12-pulse rectifier scheme for standard adjustable speed drives (ASDs). An analysis of the standard diode rectifier shows that the harmonic currents to some degree are independent of the load. As a result, near true 12-pulse rectifier line currents for a wide load range can be achieved with the quasi 12-pulse scheme. Furthermore, it is shown that the harmonic performance of the quasi 12-pulse scheme actually is superior to the true 12-pulse rectifier if the supply voltage is pre-distorted. Both simulations and experimental results are verifying the analysis
Keywords :
AC-DC power convertors; DC motor drives; harmonic distortion; power conversion harmonics; rectifying circuits; variable speed drives; adjustable speed drives; harmonic currents; harmonic performance; line currents; load range; quasi 12-pulse rectifier; standard diode rectifier; supply voltage distortion; Analytical models; Coils; Diodes; Harmonic analysis; Harmonic distortion; Inductors; Rectifiers; Topology; Variable speed drives; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-6618-2
DOI :
10.1109/APEC.2001.912462
