Power Quality aspects of Smart Grids

Abstract

This paper gives an overview of the smart grids

developments, seen from a power-quality viewpoint; describes

the main relations between smart grids and power quality, and

goes into some detail for some of the aspects. Different types of

real and virtual energy storage are distinguished. Power-quality

monitoring in the smart grid is discussed in detail. Further

aspects discussed in the paper are: emission by new devices;

interference between devices and power-line communication;

allocation of emission limits; improving voltage quality;

immunity of devices; and weakening of the transmission grid.

Although the smart grid brings many new power-quality

challenges, these should not result in the introduction of

unnecessary barriers against the introduction of new

technology.