Analysis of Sensitivity of Harmonic Resonance in Low Voltage Networks

Abstract

Harmonic resonance in Low-Voltage networks is increasingly observed majorly caused due to increase in capacitive based modern power electronic equipment. This paper presents a systematic mathematical outlook on harmonic resonances and the effects of various parameters on its sensitivity. Frequency-domain based models for a single and multi-feeder network with distributed loads are considered for analysis. Various factors such as a change in load demand, change in distance between busbar and loads, and change in distribution transformer’s power capacity are considered and their effect on harmonic resonance sensitivity is analyzed.