Active Harmonic Conditioners

This Application Note discusses the use of active filters to reduce harmonic currents in installations. Active filters work by providing the harmonic current required by the load instead of it being drawn from the supply.

The major advantage of active filters is that they can be distributed around an electrical network in a decentralized manner, which enhances the effect of filtering. They can be programmed to respond to selected or all harmonic frequencies and quickly adapt to changes in load profile.

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Highlights

  • The use of filters against harmonics can improve the power factor and reduce the investment cost of the electrical installation.
  • The use of active filters (AHC) improves the performance of the solution and its resistance against e.g. frequency variations and overload
  • The AHC is a flexible solution, making it easy to cope with changes of building layout and use

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