Title :
A control strategy for parallel active filters using extended p-q theory and quasi instantaneous positive sequence extraction method
Author :
Tarafdar Haque, M. ; Hosseini, S.H. ; Ise, T.
Author_Institution :
Dept. of Electr. Eng., Tabriz Univ., Iran
Abstract :
The combination of extended p-q theory and quasi-instantaneous positive sequence extraction of utility voltages for controlling parallel active filters (PAFs) is presented. Operation of PAF using this method compensates for reactive power, current harmonics and imbalance currents of a nonlinear load in 3-phase 3-wire harmonic polluted and/or imbalance utility voltage case, successfully. Problem of generating three phase balanced reference currents of extended p-q theory has been solved. Analytical calculations and simulation results confirm the validity of presented control strategy to suppress the above-mentioned power quality
Keywords :
active filters; compensation; control system analysis; control system synthesis; harmonic distortion; load (electric); power distribution control; power harmonic filters; power supply quality; power system harmonics; power system stability; reactive power control; 3-phase 3-wire distribution networks; control design; control simulation; control strategy; current harmonics compensation; extended p-q theory; imbalance currents compensation; nonlinear load; parallel active power harmonic filters; power quality; quasi instantaneous positive sequence extraction method; reactive power compensation; Active filters; Circuits; Electronic mail; Frequency; Pollution; Power harmonic filters; Power quality; Power system harmonics; Reactive power; Voltage control;
Conference_Titel :
Industrial Electronics, 2001. Proceedings. ISIE 2001. IEEE International Symposium on
Conference_Location :
Pusan
Print_ISBN :
0-7803-7090-2
DOI :
10.1109/ISIE.2001.931812
