Harmonics analysis and calculation in power system networks

Abstract EN

The harmonic distortion in the power system is increasing with wide use of nonlinear loads such as wave rectifiers, static VAR compensator, and solid-state controlled devices.

Thus, it is important to analyze and evaluate the various harmonic problems in the power system prior to their occurrence.

This paper presents a technique to analyze propagation of harmonic current and voltage in power system networks, and determine the location and magnitude of the maximum harmonic current and voltage in the network.

Frequency dependent models of a power system elements and loads have been developed for the appropriate range of frequency.

The harmonic source representation is described.

The location of harmonic source, and the system loads are all found to be factors in determining the magnitude of harmonic currents and voltages flow in the system.