DocumentCode :
2545995
Title :
A new method for separating AC component of instantaneous real power and imaginary power suitable for active filters
Author :
Nakata, Atsushi ; Ueda, Akiteru ; Torii, Akihiro
Author_Institution :
Aichi Inst. of Technol., Toyota, Japan
Volume :
2
fYear :
1997
fDate :
3-6 Aug 1997
Firstpage :
719
Abstract :
In a control system of active filters, p-q theory can be used for the calculation of higher harmonic currents. A high-pass filter of the first order is usually used for separating the AC components of instantaneous real power (p) and instantaneous imaginary power (q). However, in such a system the transient response for a load change is not high enough. Here, the authors propose a new control system in which the AC components are derived from p and q using a moving average value calculation method. By the proposed system, control response and accuracy are very good-even in the case of an abrupt load change
Keywords :
active filters; control system analysis computing; control system synthesis; filtering theory; harmonic distortion; high-pass filters; load (electric); power filters; power system analysis computing; power system control; power system harmonics; transient response; AC components; active power harmonic filters; control accuracy; control performance; control response; control simulation; control system design; high-pass filter; higher harmonic currents; instantaneous imaginary power; instantaneous real power; load changes; p-q theory; transient response; Active filters; Circuits; Control systems; Cutoff frequency; Interference; Power electronics; Power harmonic filters; Power system harmonics; Transient response; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Conversion Conference - Nagaoka 1997., Proceedings of the
Conference_Location :
Nagaoka
Print_ISBN :
0-7803-3823-5
Type :
conf
DOI :
10.1109/PCCON.1997.638291
Filename :
638291
Link To Document :
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