ABSTRACT
At the end of this chapter you should be able to: • use a tabular method to determine the Fourier series
for a complex waveform • predict the probable harmonic content of a waveform
on inspection
37.1 Introduction
Many practical waveforms can be represented by simple mathematical expressions, and, by using Fourier series, the magnitude of their harmonic components determined. For waveforms not in this category, analysis may be achieved by numerical methods. Harmonic analysis is the process of resolving a periodic, non-sinusoidal quantity into a series of sinusoidal components of ascending order of frequency.
