Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A Grid Current-Controlling Shunt Active Power Filter

  • Tumbelaka, Hanny H. (Dept. of Electrical Engineering, Petra Christian University) ;
  • Borle, Lawrence J. (School of Electrical and Electronics Engineering, University of Western Australia) ;
  • Nayar, Chemmangot V. (Dept. of Electrical and Computer Engineering, Curtin University of Technology) ;
  • Lee, Seong-Ryong (School of Electronic and Information Engineering, Kunsan National University)
  • Published : 2009.05.20
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Abstract

In this paper, the implementation of a three-phase shunt active power filter is presented. The filter is essentially three independent single-phase current-controlled voltage source inverters (CC-VSI) with a common DC bus. The CC- VSI is operated to directly control the AC grid current to be sinusoidal and in phase with the grid voltage without detecting the load currents. The APF consists of a current control loop, which shapes the grid currents to be sinusoidal and a voltage control loop, which regulates the active power balance of the system. The experimental results indicate that the active filter is able to handle predominantly the harmonics, as well as the unbalance and reactive power, so that the grid currents are sinusoidal, in phase with the grid voltages and symmetrical.

Keywords

References

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