The neutral wire in most existing power flow and fault analysis software is usually merged into phase wires using Kron's reduction method. In some applications, such as fault analysis, fault location, power quality studies, safety analysis, loss analysis etc., knowledge of the neutral wire and ground currents and voltages could be of particular interest. A general short-circuit analysis algorithm for three-phase four-wire distribution networks, based on the hybrid compensation method, is presented. In this novel use of the technique, the neutral wire and assumed ground conductor are explicitly represented. A generalised fault analysis method is applied to the distribution network for conditions with and without embedded generation. Results obtained from several case studies on medium- and low-voltage test networks with unbalanced loads, for isolated and multi-grounded neutral scenarios, are presented and discussed. Simulation results show the effects of neutrals and system grounding on the operation of the distribution feeders.
References
-
-
1)
-
G. Gross ,
H.W. Hong
.
A two step compensation method for solving short circuit problems.
IEEE Trans. Power Appar. Syst.
,
6 ,
1322 -
1331
-
2)
-
`IEEE Recommended Practice for Groounding of Industrial and Commercial Power Systems', IEEE Standard 142-1991, 1992.
-
3)
-
P.M. Anderson
.
(1995)
Analysis of faulted power systems.
-
4)
-
R.M. Ciric ,
A. Padilha ,
L.F. Ochoa
.
Power flow in four-wire distribution networks—general approach.
IEEE Trans. Power Syst.
,
4 ,
1283 -
1290
-
5)
-
A. Tan ,
W.H.E. Lin ,
D. Shirmohammadi
.
Transformer and load modeling in short circuit analysis for distribution systems.
IEEE Trans. Power Syst.
,
3 ,
1315 -
1322
-
6)
-
C.S. Cheng ,
D. Shirmohammadi
.
A three-phase power flow method for real-time distribution system analysis.
IEEE Trans. Power Syst.
,
2 ,
671 -
769
-
7)
-
W.H. Kersting
.
Radial distribution test feeders.
IEEE Trans. Power Syst.
,
3 ,
975 -
985
-
8)
-
R.M. Ciric ,
L.F. Ochoa ,
A. Padilha
.
Power flow in distribution networks with earth return.
Int. J. Electr. Power Energy Syst.
,
373 -
380
-
9)
-
T.H. Chen ,
M.S. Chen ,
W.J. Lee ,
P. Kotas ,
P. Van Olinda
.
Distribution system short circuit analysis – a rigid approach.
IEEE Trans. Power Syst.
,
1 ,
444 -
450
-
10)
-
Z. Xiaofeng ,
F. Soudi ,
D. Shirmohammadi ,
C.S. Cheng
.
A distribution short circuit analysis approach using hybrid compensation method.
IEEE Trans. Power Syst.
,
4 ,
2053 -
2059
-
11)
-
T.A. Short ,
J. Stewart ,
D.R. Smith ,
J. O'brien ,
K. Hampton
.
Five-wire distribution system demonstration project.
IEEE Trans. Power Deliv.
,
2 ,
649 -
654
-
12)
-
T.H. Chen ,
W.C. Yang
.
Analysis of multi-grounded four-wire distribution systems considering the neutral grounding.
IEEE Trans. Power Deliv.
,
4 ,
710 -
717
-
13)
-
Meliopoulos, A.P., Kennedy, J., Nucci, C.A., Borghetti, A., Contaxies, G.: `Power distribution practices in USA and Europe: Impact on power quality', Int. Conf. on Harmonics and Quality of Power, 1998, p. 24–29.
-
14)
-
J.C. Balda ,
A.R. Oliva ,
D.W. McNabb ,
R.D. Richardson
.
Measurements of neutral currents and voltages on a distribution feeder.
IEEE Trans. Power Deliv.
,
4 ,
1799 -
1804
-
15)
-
V. Brandwajn ,
W. F. Tinney
.
Generalised method of fault analysis.
IEEE Trans. Power Appar. Syst.
,
6 ,
1301 -
1306
-
16)
-
F. Alvarado ,
S. Mong ,
M. Enns
.
A fault program with macros, monitors and direct compensation in mutual groups.
IEEE Trans. Power Appar. Syst.
,
5 ,
1109 -
1120
-
17)
-
J.C. Das ,
R.H. Osman
.
Grounding of AC and DC low-voltage and medium-voltage drive system.
IEEE Trans. Ind. Appl.
,
1 ,
205 -
216
-
18)
-
E. Lakervi ,
E.J. Holmes
.
(1995)
Electricity distribution network design.
-
19)
-
Y. Zhu ,
K. Tomsovic
.
Adaptive power flow method for distribution systems with dispersed generation.
IEEE Trans. Power Deliv.
,
3 ,
822 -
827
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