DocumentCode :
3777970
Title :
UPQC harmonic current detection method based on ultra-short feedback predictive PI control strategy
Author :
Ni Fuyin; Li Zhengming; Wang Naidong
Author_Institution :
School of Electrical and Information Engineering, Jiangsu University, Zhengjiang, 212013, China
Volume :
1
fYear :
2015
fDate :
7/1/2015 12:00:00 AM
Firstpage :
324
Lastpage :
329
Abstract :
In parallel active power filter (PAPF) harmonic current detection methods of unified power quality conditioner (UPQC), the traditional ip ? iq detection method has the problems such as poor anti-jamming ability in phase locked loop circuit and hysteresis. This paper proposes a ultra-short feedback predictive PI control strategy based on ip ? iq for harmonic current detection. Under the research of predictive PI control algorithm and endocrine hormone feedback mechanism, the controller which combines predictive PI control with ultra-short feedback control is presented for harmonic current detection. The PAPF simulation of UPQC is operated in the distributed grid with nonlinear loads. The simulation results illustrate that the compensation performance based on ultra-short feedback predictive PI control strategy is superior to conventional ip ? iq algorithm. Therefore the improved harmonic current method promotes dynamic compensation ability, and provides a new control strategy for UPQC in the distributed grid.
Keywords :
"Biochemistry","Harmonic analysis","Power harmonic filters","Prediction algorithms","Glands","Phase locked loops"
Publisher :
ieee
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2015 12th IEEE International Conference on
Type :
conf
DOI :
10.1109/ICEMI.2015.7494190
Filename :
7494190
Link To Document :
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