PROPOSAL OF THE SOLUTION OF HYBRID COMPENSATION DEVICE IN A HARMONIC FILTER IN THE DISTRIBUTION POWER SYSTEM

Abstract

In the early two decades of the 21st century, the distribution power system in the world in
general and of Vietnam in particular has had rapid changes, namely: (i) Emerging power
system consisting of renewable energy sources; (ii) Smart grid solutions comprising of FACTS
devices; (iii) Rapidly increasing percentage of industrial loads and household appliances are
non-linear power electronic based equipments. Accordingly, along with the provisions of law,
the requirements for harmonics standards in power quality have become a vital issue than
ever before. Filtering approaches is the solution that is widely employed due to its advantages
in economic and technical aspects. In this paper, the authors propose a method of passive
filtering for harmonics with variable resonance frequency based on the load configuration.
This harmonic filter with variable frequency based on the load both meets the efficiency of
filtering harmonics in the power system and has a very competitive price because of fewer
reactors design.