Title :
A high power factor AC-DC-AC converter using the valley-fill filter
Author :
Chen, Yaow-Ming ; Cheng, Yuan-Ming ; Liang, Tsong-Juu
Author_Institution :
Dept. of Electr. Eng., I-Shou Univ., Kaohsiung, Taiwan
Abstract :
An AC-DC-AC converter using the valley-fill filter for power factor correction is proposed in this paper. An AC-DC bridge rectifier with high power factor can be easily achieved by using the valley-fill filter. The operation modes of the valley-fill filter are introduced. It has the advantages of high power factor and simplicity compared with other passive filters and active filters, respectively. The DC ripple voltage is the drawback of the valley-fill filter. However, the DC-AC converter can tolerate the DC ripple voltage by using the direct pulse width modulation control scheme. Computer simulation results of the proposed AC-DC-AC converter are presented in this paper.
Keywords :
AC-DC power convertors; DC-AC power convertors; PWM power convertors; digital simulation; power factor correction; power filters; rectifying circuits; AC-DC bridge rectifier; AC-DC-AC converter; DC ripple voltage; computer simulation; direct pulse width modulation control; power factor correction; valley-fill filter; Active filters; Analog-digital conversion; Bridge circuits; Passive filters; Power factor correction; Power filters; Pulse width modulation converters; Reactive power; Rectifiers; Voltage;
Conference_Titel :
Power Electronic Drives and Energy Systems for Industrial Growth, 1998. Proceedings. 1998 International Conference on
Print_ISBN :
0-7803-4879-6
DOI :
10.1109/PEDES.1998.1330015
