... compensation–unbalance at
bus 30
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important power quality problems in the power distribution system. IEEE 519-1992 and
IEEE 1159-1995 describe ...
0. 0132
0. 0136
0.0150
Total Power Loss (MW) 6.0795
Table 4. Three phase bus voltages for the unbalanced case.2: other degree of unbalance
Power Qualit...
...
Preface IX
Part 1 Power Quality Monitoring, Classification,
Measurements, and Analysis 1
Chapter 1 Power Quality Monitoring 3
Kazem Mazlumi
Chapter 2 Wavelet and PCA to Power Quality
Disturbance ... importance of
monitoring instruments in order to localize the problems and find solutions. Although the
Power Quality – Monitoring, Analysis and Enhanc...
... to power- quality
disturbance recognition,
IEEE Transaction on Power Delivery, Vol.19, No.4, (October
2004), pp. (1928–935), ISSN 0885-8977.
Power Quality – Monitoring, Analysis and Enhancement ... standard deviation. The average of data is defined by (10).
Power Quality – Monitoring, Analysis and Enhancement
22
al. proposed an extended wavelet-based fuzz...
... total harmonic distortion, power factor, fundamental power terms, and the active and
Power Quality – Monitoring, Analysis and Enhancement
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producing different results, and as a consequence, ... National Standard) / 01-Nov-2002
/ 8 pages.
Dugan, R., McGranahan, M., Beaty, W. (1996). Electrical Power Systems Quality, McGraw-
Hill, Germany.
Power Quality – M...
...
Sons, England
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Bollen, M. H. J. & Gu I. (2006) Signal Processing of Power Quality Disturbances, IEEE Press,
ISBN -13 978-0-471-73168-9, ... satisfying orthogonality
and zero moment conditions (Selesnick 1999; Panda et al., 2002).
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Nine ty...
... series h[kT] is
Methodes of Power Quality Analysis
103
In most cases the power quality disturbances are nonstationary and nonperiodic. For power
quality analysis is useful to achive time ... follows.
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where
r : correlation coefficient
X,Y
: the means of
X
and
Y
respectively
XY
S,S: the st...
... increased sampling rate, Er1 and
Er2 are the errors between V1 and V2 and respectively Ve and Er1/Er2 is the last column of
Table 2.
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where, ... representation
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Zhang, M.; Li, K. & Hu, Y. (2011). A Real-Time Classification Method of P...
... source of 5th and 11th harmonics and the customer is the
dominant source of 7th and 13th harmonics. The above assumption is valid for both the
Power Quality – Monitoring, Analysis and Enhancement ... Buchholz and
Goodhue (Emmanuel, 1998) in a similar formula and as an alternative way by Depenbrock
Power Quality – Monitoring, Analysis and Enhancement
156...
...
active
power
Fig. 5. The active power direction criterion for particular harmonics – example simulation
results for an unbalanced system (Fig. 3)
Power Quality – Monitoring, Analysis and Enhancement ... I R
θα φ α
−= −− (41)
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automatics systems (impedance variation analysis, the analysis of current...
... disturbances and transient oscillations with known
parameters analyzed in the case1 and case2, the results show that the four power quality
Power Quality – Monitoring, Analysis and Enhancement ... 0.105
50
52
54
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3.1 Traditional power quality indices
The most frequently encountered power distu...