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Selected Active Power Filter Control Algorithms

  • Krzysztof SozańskiEmail author
Chapter
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Part of the Power Systems book series (POWSYS)

Abstract

This Chapter focuses on the analysis and implementation of control circuits for shunt active power filters (APF). The selected digital signal processing algorithms which have been designed for the control of active power are investigated. First considered are algorithms with first harmonics detectors based on: IIR filter, lattice wave digital filter, sliding DFT, sliding Goertzel and moving DFT. Next considered is a modified classical control circuit based on a p-q algorithm. Here problems of the active power filter dynamics are discussed. Then follows a description of a modified predictive circuit to eliminate dynamic compensation errors for predictable changes in the load current. The subsequent sections describe a control circuit with filter banks, which allows one to select compensated harmonics. Under consideration are filter banks based on moving DFT algorithms and a p-q algorithm. To conclude this chapter a multirate active power filter is considered, which has a fast response to sudden changes in the load current. The presented algorithms allow a decrease in line current THD ratio from a dozen or so percent to a few percent. This chapter presents simulation and experimental results obtained by the author.

Keywords

Filter Bank Load Current Control Circuit Total Harmonic Distortion Line Voltage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London Ltd. 2017

Authors and Affiliations

  1. 1.Institute of Electrical EngineeringUniversity of Zielona GóraZielona GóraPoland

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