The Effect of Distribution Transformers on Distribution Line Carrier Signals

Gale, L. J.; Amoura, Fathi; O'Neal, J.; Hemminger, Rodney C.

doi:10.1109/tpwrd.1987.4308070

Cited by 23 publications

(5 citation statements)

References 2 publications

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“…In order to realize the automation of distribution network, the research on the impact of these factors on carrier communication must be conducted. This paper mainly analyzes the following factors: Impedance matching problem between the components (1).Source impedance matching. Power resistance is equal to the characteristic impedance of the transmission line.…”

Section: Influence Factors Of Distribution Network Carrier Communicatmentioning

confidence: 99%

“…For the 10kV distribution transformers, theinput impedance of high voltage side is capacitance.The impedance value decreases with the increase of the frequency and with the increase of the capacity, the impedance value becomes smaller [1,2] .…”

Section: Effect Of Power Distribution Transformermentioning

confidence: 99%

“…The transformer model City power distribution network trunk line is mostly distributed in the load intensive areas, there are also many connected distribution transformers along the line. From a great deal of literature [1,2] , the research results that the low voltage of the transformer is to open circuit or short circuit, the measurement of the high voltage side impedance is basically unchanged.Thus , the distribution and load can be replaced by an equivalent highfrequency model.With the increase of the frequency, the low frequency T circuit will no longer be used in high frequency. Therefore,this paper adopts the high frequency equivalent model of transformer three capacitor, as shown in Fig.3.In the case of the phase A, 1…”

Section: G， 'mentioning

confidence: 99%

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Analysis of PLC transmission characteristics of urban distribution network

Feng¹,

Wang²,

Li³

et al. 2016

Proceedings of the 2016 International Conference on Civil, Transportation and Environment

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10 kV distribution network topology is complex, along the lines there are many connected power distribution transformer and branch lines, and the lines are mostly hybrid cases. Its channel transmission characteristics are complex and variable, which has caused great difficulties to the high rate NB-PLC technology frequency selection. Based on urban 10 kV distribution network topology, it emphatically analyzes the changes in the channel transmission characteristics from the carrier source to the receiving point in hybrid cases and influence rules of the length of main trunk line, the length and number of branch line and the location and quantity of distribution transformer on the channel transmission characteristics, which provide reference basis for the modulation mode and frequency selection of high rate NB-PLC technology.

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Section: Influence Factors Of Distribution Network Carrier Communicatmentioning

confidence: 99%

Section: Effect Of Power Distribution Transformermentioning

confidence: 99%

Section: G， 'mentioning

confidence: 99%

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Analysis of PLC transmission characteristics of urban distribution network

Feng¹,

Wang²,

Li³

et al. 2016

Proceedings of the 2016 International Conference on Civil, Transportation and Environment

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“…Multipath Propagation A distribution network is, to a very good approximation, a closed system to PLC signals [4]. Multiple reflections from open branches and closed terminals result in a complex echo scenario.…”

Section: Bmentioning

confidence: 99%

Simulation of narrowband power line communication using ATP-EMTP

Robson

Haddad

Griffiths

2009

41st North American Power Symposium

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The simulation of narrowband power line communication is carried out by use of the J.Marti line model in the ATP-EMTP simulation program. The modal attenuation constants for three distribution line structures are obtained and frequency domain simulations on a 'typical' rural 11 kV network are carried out. It follows that the 11 kV network studied presents a channel to narrowband power line communication frequencies characterized by strong multipath propagation effects and input impedance that is highly variable with frequency.

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“…Power line carrier (PLC) technology seems to be particularly suitable for these future medium voltage distribution systems. The high frequency signal in fact propagates through the lines but it remains confined to the Medium Voltage (MV) network, within the relevant upstream transformer high voltage/medium voltage (HV/MV) and the downstream transformers medium voltage/low voltage (MV/LV), (the impedance as seen on the MV bus is to a degree dependant on load variations and always remains very high [1]). In this way, the MV system is an "unbundled domain" for line carrier signals.…”

Section: Introductionmentioning

confidence: 99%

Application of PLC for the Control and the Protection of Future Distribution Networks

Benato

Caldon

2007

2007 IEEE International Symposium on Power Line Communications and Its Applications

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The paper shows the great possibilities offered by PLC applied to the medium voltage power networks. The paper focuses the attention on the need for new strategies of control and protection of future distribution networks with high penetration of distributed generator (DG) and points out how PLC could have a key role among the technologies that are expected to be applied. In the paper, three chief proposals of application of PLC will be illustrated: the co-ordinated voltage control, a protection system to prevent dispersed generation islanding and the control of the interface device at the point of common coupling for a microgrids distribution structure. By means of multiconductor matrix procedure already presented by the authors in previous researches, the feasibility of power line carrier applications will be demonstrated .

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The Effect of Distribution Transformers on Distribution Line Carrier Signals

Cited by 23 publications

References 2 publications

Analysis of PLC transmission characteristics of urban distribution network

Analysis of PLC transmission characteristics of urban distribution network

Simulation of narrowband power line communication using ATP-EMTP

Application of PLC for the Control and the Protection of Future Distribution Networks

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