Search results for " power transformers"

showing 3 items of 3 documents

Experimental Evaluation on Narrow Band Power Line Communication in Medium and Low Voltage Smart Grids

2013

The aim of this work is to perform a feasibility study on the power line communication for the development of a new generation of interface devices (IDs) for smart grid and energy storage applications. More in detail, this paper deals with one of the most important issues on this topic, which is the communication system. Among the existing communication technologies, the study is focused on power line communications (PLCs). After an analysis of the state of the art in the field, the main aspects are analyzed, concerning the open issues on the use of PLCs, especially for medium voltage (MV) and low voltage (LV) systems. In this work the use of PLC in MV-LV networks is investigated, by means …

communication systems power system communication power transformers communication equipment testing narrow band power line communication attenuation smart gridsSettore ING-INF/07 - Misure Elettriche E Elettroniche
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Experimental investigation on PLC signal crossing of power transformers

2014

In this work the use of PLC in MV-LV networks is investigated, by means of experimental tests in the case of a two-ways MV/LV communication between two secondary substations. The two substations are connected by a MV overhead power line. Moreover each substation has a by-pass connection at MV bus-bars and a MV/LV power transformer. A ST7580 transceiver is used to inject the communication signal. The transceiver is embedded in a new interface device developed by the authors. In the paper the communication issues are introduced and some experimental tests are presented and discussed. Such tests have been carried out in the presence of voltage net, i.e. 24 kV, with the aim to verify the possib…

EngineeringElectric power distributionbusiness.industrycommunication systems power system communication power transformers communication equipment testing narrow band power line communication attenuation smart gridsOverhead power lineElectrical engineeringcommunication systemsnarrow band power line communicationSignalCurrent transformerpower transformerspower system communicationElectric power transmissionsmart gridsElectronic engineeringPower engineeringTransceiverbusinessSettore ING-INF/07 - Misure Elettriche E Elettronicheattenuationcommunication equipment testingVoltage
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Oil filled MV/LV Power Transformer Behavior in Narrow Band Power Line Communication Systems

2012

The aim of this paper is to characterize oil-filled power transformers in the narrow-band power-line communication (PLC) frequency range of 50-150 kHz. A new model is proposed for such type of a transformer, in the aforementioned frequency range of interest, in order to study its influence on the signal transmission and to investigate the possibility that the PLC signal can cross the power transformer itself. The new model is simpler than those previously proposed in literature, and it can be used in the whole frequency range available for NB PLC according to the CENELEC EN 50065-1 A-band. In order to validate the model, simulation and measurement results are compared for four oil-filled po…

EngineeringFrequency-shift keyingbusiness.industryOverhead power lineElectrical engineeringAttenuation communication equipment testing communication systems narrow-band power-line communication (NB-PLC) power system communication power transformersCommunications systemlaw.inventionpower transformerspower system communicationnarrow-band power-line communicationPower-line communicationPower ratinglawElectromagnetic coilElectronic engineeringElectrical and Electronic EngineeringbusinessTransformerInstrumentationLow voltageSettore ING-INF/07 - Misure Elettriche E Elettronichecommunication equipment testing
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