Research Article

An Improved ip − iq Harmonic Detection Method Based on Time-Varying Integral Duration

Table 2

Comparison of the total distortion rate (%) of the fundamental current.

Harmonic sourceCut-off frequency (Hz)
2550100150

Three-phase non-rectifierReference [16]0.380.692.685.91
Proposed method0.27

Three-phase voltage inverterReference [16]0.891.032.465.52
Proposed method0.68