A Solution to Remote Detection of Illegal A Solution to Remote Detection of Illegal ElectricityElectricity

Usage via Power Line CommunicationsUsage via Power Line Communications

M.R. Rahul Raj

M. Nithin Mohan

(B-TECH FINAL YR)

PLC’S:PLC’S:

Power Lines, originally devised to transmit Power Lines, originally devised to transmit electricityelectricity from some sources to many from some sources to many sinkssinks

Power Lines can be used for transmission of Power Lines can be used for transmission of power as well as communication i.e., data is power as well as communication i.e., data is modulated on a carrier frequency and sent modulated on a carrier frequency and sent over over

Layout Of A PLCLayout Of A PLC

Building BlocksBuilding Blocks

Electromechanical movement to digital signal conversion

AMR:Translating readings from rotating meter dials into digital form is necessary

Main components of AMR systemMain components of AMR system

1.Meter interface module1.Meter interface module

2. Communications systems2. Communications systems

3. Central office systems equipment 3. Central office systems equipment

PLC’s and AMR…PLC’s and AMR…

AMR-important application as every user AMR-important application as every user connected each other via power lines. In connected each other via power lines. In this power network, every user connected this power network, every user connected to each other via modems with data to each other via modems with data originating from the remote meter or originating from the remote meter or central station central station

Detection and Control SystemDetection and Control System

Schematic illustration of detection system of illegal electricity usage

PLC signaling is only valid over the low voltage VAC power lines

PLC signaling must be in CENELEC standards

PLC1A….PLCNA are PLC Modems and used for AMR (Subscribers Location)

PLC1B….PLCNB are Energy Meter Chips of detector (Connection Points)

Detection and Control System Detection and Control System (contd…..)(contd…..)

Schematic illustration of detection system of illegal electricity usage

Proposed detector system has two recorded energy data in host PLC unit, one, which comes from the AMR-PLC, and the other, which comes from the PLC modem at the connection points

An Error s/g is generated indicating illegal load Usage

Subscriber Address and Error s/g-Combined-sent to Central Station

System simulation and modeling of the detection system of illegal electricity usage for electromechanical kilowatt-hour meters

ResultsResults

Results and the variations of the measurements are shown in above Figs.

Bit-error probability with frequency and load impedance for 1000-m

Effects of distance of the source-receiver on the loss for various Cases

ConclusionConclusion

The Proposed Detector System is The Proposed Detector System is Examined in Laboratory ConditionsExamined in Laboratory Conditions

Once this proposed detection systems are Once this proposed detection systems are tried in real power lines, the distribution tried in real power lines, the distribution losses in India can be reduced effectively.losses in India can be reduced effectively.

BibliographyBibliography

I. H. Cavdar, “A Solution to Remote Detection of …” I. H. Cavdar, “A Solution to Remote Detection of …” IEEE Transactions on power delivery, Vol. 19..IEEE Transactions on power delivery, Vol. 19..

I. H. Cavdar, “Performance analysis of FSK power line I. H. Cavdar, “Performance analysis of FSK power line communications systems over the time-varying communications systems over the time-varying channels: Measurements and modeling,” channels: Measurements and modeling,” IEEE Trans. IEEE Trans. Power DeliveryPower Delivery, vol. 19, pp. 111–117, Jan. 2004., vol. 19, pp. 111–117, Jan. 2004.

Yoshinori Mizugai and Masahiro Oya “World Trends in Yoshinori Mizugai and Masahiro Oya “World Trends in Power Line Communications” Mitsubishi Electric Power Line Communications” Mitsubishi Electric

Tom D Tamar kin “Automatic Meter Reading”, Public Tom D Tamar kin “Automatic Meter Reading”, Public Power magazine Volume50, Number5 September-Power magazine Volume50, Number5 September-October 1992.October 1992.