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Characterization and Field Measurements of NB-PLC for LV Network

  • Masood, Bilal (Dept. of Electrical Engineering, the Superior College, University Campus) ;
  • Ellahi, Manzoor (Dept. of Electrical Engineering, the Superior College, University Campus) ;
  • Khan, Waheed Aftab (Dept. of Electrical Engineering, the Superior College, University Campus) ;
  • Akram, Waqar (Dept. of Electrical Engineering, the Superior College, University Campus) ;
  • Usman, Muhamad (Dept. of Electrical Engineering, the University of Lahore) ;
  • Gul, Muhammad Talha (Dept. of Electrical Engineering, the Superior College, University Campus)
  • Received : 2016.06.16
  • Accepted : 2017.09.11
  • Published : 2018.01.01

Abstract

This paper presents a procedure for field measurements which provides a generalized Narrowband Power Line Communications (NB-PLC) channel model for low voltage (LV) access network in order to deploy advanced metering infrastructure (AMI) within Lahore, Pakistan. The measurements of allocated sites were performed in the residential (urban and rural), industrial and commercial electricity consumers for the NB-PLC channel modeling of overhead transmission lines (TLs). On the basis of extensive field measurement results, the average attenuation profile and transfer functions are presented. The results obtained from field measurements are validated by comparing them with a proposed Simulink model. A close agreement in the measured and simulated transfer function (TF) results is observed. The proposed Simulink model is an effort to model the NB-PLC channels in an effective way, especially in South Asian countries.

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Fig. 1. NB-PLC system model

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Fig. 2. Selected sites for field measurements

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Fig. 3. Transceiver (TMDSPLCKIT-V3) specifications

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Fig. 4. Field measurement setup

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Fig. 5. GUI of transceiver

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Fig. 6. Proposed Simulink Model

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Fig. 7. Line impedance of phase A for worst, bad, good andbest channel cases

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Fig. 8. Schematic of LV phase to ground capacitivecoupling device

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Fig. 9. Measured and simulated Frequency response ofcapacitive coupling device

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Fig. 10. Simulation of field measurement results for allsites versus line length

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Fig. 11. Worst case of NB-PLC channels with comparisonof Average and Simulated transfer functions

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Fig. 12. Bad case of NB-PLC channels with comparison ofAverage and Simulated transfer functions

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Fig. 13. Good case of NB-PLC channels with comparisonof Average and Simulated transfer functions

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Fig. 14. Best case of NB-PLC channels with comparison ofAverage and Simulated transfer functions

Table 1. Comparison of existing NB-PLC studies

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Table 2. Attributes of selected sites

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Table 3. Experimental results of sites obtained in the field measurements

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Table 4. Electrical parameters of conductors

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Table 5. Active power (W) and reactive power (VAR) ratios of each RLC load connected to LV network

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Table 6. Model parameters of capacitive coupling device

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Table 7. Average, measured and simulated Transfer Functions of worst, bad, good and best channel cases

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