WSEAS Transactions on Systems and Control
Print ISSN: 1991-8763, E-ISSN: 2224-2856
Volume 11, 2016
The Application Research of Proportional Resonance Control in APF Ripple Voltage Control
Authors: , ,
Abstract: For the existence of the dc side active power filter ripple voltage will directly affect the selection of dc side capacitor value problems, in order to improve the control precision and reduce the dc side voltage ripple as the goal, a kind of dc side APF ripple voltage proportional resonant (Proportional Resonance, PR) control method is put forward, using an improved harmonic detection method at the same time. Improved harmonic detection method is instead of low pass filter with integral delay gain module, increase the precision of harmonic filter and improve the system control precision. PR control method is used to join the resonant link, which makes PR controller in tracking the current instruction and can eliminate the steady-state error, thus reducing the ripple voltage, and solving the problem of the selection of the dc side capacitor in the actual engineering application. At last, a simulation experiment is done to verify the principle above.
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Keywords: Active power filter, dc side ripple voltage, proportional resonance control, improved harmonic method
Pages: 103-111
WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 11, 2016, Art. #14