A Discussion of New Requirements for Measurement of Harmonic Distortion in Modern Power Supply Systems

This paper discusses some of the new requirements in the measurement of harmonic distortion in modern power supply systems: the measurement of the distortion over the harmonic range (>2 kHz) and the time-frequency analysis of harmonic distortion, and presents the basic performance of a new advanced digital measurement instrument that, in addition to classical harmonic distortion, provides an extended analysis of the distortion in the time-frequency domain.