Title :
Comparison of conducted RFI emission from different unity power factor AC/DC converters
Author :
Mahdavi, J. ; Tabandeh, M. ; Shahriari, A.K.
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
Low frequency harmonics injection into AC power supply and small power factor are the main disadvantages of conventional AC/DC converters. By using current mode control, the converter can be designed such that its input current have a sinusoidal form and in phase with the power supply voltage. By solving the problem of power factor with high frequency switching current mode control, another problem arises; that of high frequency harmonics generated in radiofrequency (RF) range by the power converter. In this paper, an AC/DC power converter with fixed topology (diode bridge+boost converter) is used and various current control methods are applied to it. After simulating the converter behavior and also using the simulation of a standard network; “line impedance stabilization network”, (LISN), placed between the AC power supply and the converter, the conducted RF noise is computed. Finally, laboratory experimental results were compared with simulation results
Keywords :
AC-DC power convertors; control system analysis; electric current control; electromagnetic interference; harmonic distortion; power factor correction; power system harmonics; radiofrequency interference; switching circuits; AC/DC power convertor; HF harmonics; LF harmonics injection; conducted RFI emission; control simulation; current mode control; fixed topology; high frequency switching current mode control; line impedance stabilization network; unity power factor; Analog-digital conversion; Computational modeling; DC-DC power converters; Frequency conversion; Power supplies; Power system harmonics; Radio frequency; Radiofrequency interference; Reactive power; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548852