Energy Saving Analysis of Harmonic Suppression in a Distribution Network

Harmonic in power systems would not only reduce the work efficiency of a distribution network and electrical equipments so as to cause faults, shorten service life of the network, but also increase the system loss, reduce the power factor and efficiency of electric consumption utilization, and cause greater economic loss. In this paper, through the analysis of generation mechanism of harmonic in power systems, and the effect of harmonic on a variety of electrical components, found that harmonic suppression has a certain energy-saving efficiency theoretically, finally, verified through an example when cost used for harmonic suppression is lower than electric fee saved, eliminating harmonics would improve the power quality, and at the same time obtain certain economic benefits.