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The paper presents results from a study of a series-connected single-phase active power filter (APF) with a control system based on modified hysteresis method. Waveforms from the computer simulation and waveforms from the experimental tests of the filter are presented, operating at limited and unlimited maximum switching frequency.
The share of distributed generation (DG) within the distribution network increases strongly. A lot of these DG units are driven by renewable energy sources (RES). Up to now, these units only inject active power depending from the availability of their primary source. In future on the one hand DG units have to contribute to grid stability, but on the other hand DG units can provide additional functionalities...
Description of PWM and sliding-mode controls implied to series active power filters is given. Structural schemas for both control methods are given. Simulation and experimental results are put as well as a comparison between the two control methods.
In this paper, single-phase shunt active power filter (APF) controlled through hysteresis-current control is studied. A proposition is made to use the limitation on the maximum switching frequency of the power devices. This limitation increases stability to electromagnetic influences and facilitates filtering of the radio interference to the source network. In the paper, there are attached computer...
The paper contains a description of control method for single-phase shunt active power filter, based on the control with DSP TMS320LF2407 for reference signal estimation, and hysteresis current control. Filter, based on half-bridged schematic and control by the proposed method, is simulated and experimentally studied
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