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EURASIP Journal on Advances in Signal Processing

Table 3 Case study 1: average percentage estimation errors

From: Some advanced parametric methods for assessing waveform distortion in a smart grid with renewable generation

 

Fundamental

3rd

11th

401st

405th

(a) Average errors of frequency [%]

     

SWEM

7.80 × 10−5

0.0013

1.10 × 10−4

1.53 × 10−6

6.02 × 10−6

SWMEM

6.07 × 10−5

7.39 × 10−4

9.75 × 10−5

3.22 × 10−6

2.29 × 10−7

(b) Average errors of amplitude [%]

     

SWEM

5.30 × 10−4

0.026

0.0092

0.0046

0.018

SWMEM

2.58 × 10−4

0.029

0.0036

0.0034

0.014

  1. Average percentage estimation errors of (a) frequency and (b) amplitude of spectral components detected by SWEM and SWMEM.
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