DocumentCode :
940558
Title :
Current Phase Lead Compensation in Single-Phase PFC Boost Converters With a Reduced Switching Frequency to Line Frequency Ratio
Author :
Louganski, K.P. ; Jih-Sheng Lai
Author_Institution :
Future Energy Electron. Center, Virginia Polytech. Inst. & State Univ., Blacksburg, VA
Volume :
22
Issue :
1
fYear :
2007
Firstpage :
113
Lastpage :
119
Abstract :
Traditional design of the current loop controller in a single-phase power factor correction boost converter is not suitable for applications with higher line frequencies (up to 800 Hz) because of the zero-crossing distortion and high harmonic content due to the current phase lead effect. Increasing the control bandwidth and switching frequency in order to avoid this effect would reduce converter efficiency and is objectionable. The paper presents the leading-phase admittance cancellation (LPAC) technique, which improves the current-shaping control structure and eliminates the current phase lead without increasing the bandwidth requirement. The LPAC method extends the allowable line frequency range from 1/150 to 1/5 of the current loop bandwidth. The LPAC method is load-invariant and superior to other previously proposed methods. The LPAC network can be added to existing designs, which would require only two passive components in the simplest case
Keywords :
compensation; control system synthesis; electric current control; harmonic distortion; power factor correction; switching convertors; current loop controller design; current phase lead compensation; current shaping control structure; harmonic content; leading-phase admittance cancellation technique; line frequency ratio; passive components; power factor correction; reduced switching frequency; single-phase PFC boost converter; zero-crossing distortion; Admittance; Bandwidth; Frequency conversion; Harmonic distortion; Phase distortion; Power factor correction; Power system harmonics; Switching converters; Switching frequency; Average current mode control (ACMC); continuous current conduction mode (CCM); leading-phase admittance cancellation (LPAC) technique; power factor correction (PFC);
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/TPEL.2006.886656
Filename :
4052423
Link To Document :
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