Title :
Fast compensation by a pulsed resonant current source active power filter
Author :
Hoffman, K. ; Ledwich, G.
Author_Institution :
Queensland Univ. of Technol., Brisbane, Qld., Australia
Abstract :
Two current source, high frequency resonant soft switched, inverter based, active power filters (APF) are discussed. High switching speeds lead to a fast transient response of injected current. Compensation of harmonics and random noise is possible. A new vector calculator is presented which provides an instantaneous value of the `balanced´ fundamental real load current needed to support the real power requirements of the three-phase load. The injected current reference is derived from the difference between the real current and the actual load current. Fundamental VAr or power factor compensation can be carried out at the same time
Keywords :
active filters; compensation; control system analysis computing; digital simulation; electric current control; invertors; load (electric); power convertors; power engineering computing; power factor correction; power system harmonics; pulse width modulation; pulsed power technology; reactive power; switching circuits; transient response; PWM; VAr; balanced fundamental real load current; compensation; computer simulation; harmonics; injected current; injected current reference; power factor; pulsed resonant CSI active power filter; random noise; real power requirements; soft switching; switching speeds; three-phase load; transient response; vector calculator; Active filters; Energy storage; Power harmonic filters; Pulse width modulation inverters; Reactive power; Resonance; Switches; Switching circuits; Switching frequency; Transient response;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.339254
