DocumentCode :
2729102
Title :
A robust current control strategy for single-phase shunt active power filters
Author :
Komurcugil, Hasan ; Kukrer, O.
Author_Institution :
Dept. of Comput. Eng., Eastern Mediterranean Univ., Mersin, Turkey
Volume :
3
fYear :
2003
fDate :
2-6 Nov. 2003
Firstpage :
2277
Abstract :
This paper proposes a robust current control strategy for single-phase shunt active power filters (APFs) based on the dynamic model of a single-phase voltage source inverter (VSI) with four controllable switches. The idea in this strategy is to generate a switching function in terms of the filter current reference and then apply it to VSI so that the actual filter current follows its reference. The load current is measured and subtracted fro the source current reference to form the filter current (compensating current) reference. The amplitude of the input current reference can be adjusted by using a PI controller that regulates the dc capacitor voltage. It is shown that the proposed method has a good robustness to parameter changes. In addition to this, the method has another advantage of using only one current sensor for the load current. Computer simulation and experimental results are compared and good agreement is reported verifying the correct operation of the proposed control method.
Keywords :
PI control; active filters; electric current control; invertors; power filters; robust control; voltage control; compensating current; controllable switches; filter current; robust current control strategy; single-phase shunt active power filters; switching function; voltage source inverter; Active filters; Capacitors; Computer simulation; Current control; Current measurement; Inverters; Robust control; Robustness; Switches; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE
Print_ISBN :
0-7803-7906-3
Type :
conf
DOI :
10.1109/IECON.2003.1280599
Filename :
1280599
Link To Document :
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