Bilal Masood

Channel modeling of NB-PLC for Smart Grid

Future electricity power network must be restructured to improve its efficiency in order to provide all the consumers with flexible, cost effective, reliable and accessible power delivery. Recent research focuses on the conversion of typical power grid to Smart Grid (SG) where energy generation is decentralized. In this regard Power Line Communications (PLC) is a vital part of Information and Communication Technologies (ICT) within the SG. This paper presents the analysis and modeling of different channels i.e., Low Voltage (LV), Medium Voltage (MV) and High Voltage (HV) transmission lines for Narrowband Power Line Communications (NB-PLC) using transmission line theory. Most of the literature regarding power line channel modeling deals with the statistical approaches which are relatively inaccurate as they provide a partial analysis of power line channel models which includes solely multipath effects. A comprehensive investigation has been carried out by evaluating and comparing the behaviors of LV, MV and HV channel models. A consequence for the validity of this research is to facilitate the International standardization process of various power line transfer functions especially in Asian countries where a lot more research is needed in the area of power line communications. Moreover characteristics of constant and frequency selective impedances of various channel models have been evaluated.

Modeling and Characterization of Low Voltage Access Network for Narrowband Powerline Communications

Nowadays, Power Line Communication (PLC) is gaining high attention from industry and electric supply companies for the services like demand response, demand side management and Advanced Metering Infrastructure (AMI). The reliable services to consumers using PLC can be provided by utilizing an efficient PLC channel for which sophisticated channel modeling is very important. This paper presents characterization of a Low Voltage (LV) access network for Narrowband Power Line Communications (NB-PLC) using transmission line (TL) theory and a Simulink model. The TL theory analysis not only includes the constant parameters but frequency selectivity is also introduced in these parameters such as resistance, conductance and impedances. However, the proposed Simulink channel model offers an analysis and characterization of capacitive coupler, network impedance and channel transfer function for NB-PLC. Analysis of analytical and simulated results shows a close agreement of the channel transfer function. In the absence of a standardized NBPLC channel model, this research work can prove significant in improving the efficiency and accuracy of NB-PLC communication transceivers for Smart Grid communications.

Measurements and characterization of power transformer and low voltage access network for NB-PLC: Measurements and characterization of power transformer and low voltage access network for NB-PLC

Correspondence Bilal Masood, COMSATS Institute of Information Technology, Lahore, Pakistan. Email: bilal.masood@superior.edu.pk Summary Several techniques for a state-of-the-art advanced metering infrastructure (AMI) within the smart grid are being extensively studied and evaluated around the world. Advanced metering infrastructure provides an enhanced and efficient energy management infrastructure that can facilitate the latest demands of electric utilities, consumers, and smart grid. In the past few years, standardization process for the implementation of AMI using narrowband power line communications (NB-PLC) transceivers has been completed by ITU-T and IEEE. This paper is focused on the utilization of CENELEC band of NB-PLC for deployment aspects. The power transformer model of 200 and 75 kVA transformers for 9 to 90 kHz frequency range that lies in CENELEC-A band of NB-PLC is also proposed. The proposed model is more simple than previously presented models in the literature and has the capability to evaluate the transformers working not only under normal condition but also under resonance condition for frequency of interest. Moreover, the efficient procedure for field measurements that provides a generalized NB-PLC channel model for low voltage access network to deploy AMI within Lahore, Pakistan, is presented. A Simulink model is developed to validate the results. The analysis of measured and simulated results illustrates a close agreement of channel transfer functions. This research work proposes an improved and more accurate NB-PLC channel model especially for South Asian countries.

Effect of transient and non-transient models on the performance of PLC

This paper presents the characteristic analysis of channel gain for two conductor type power line communication (PLC) system using analytical transient model. The analysis of frequency responses is presented by incorporating various lengths of transmission lines and loads at terminal side. It is suggested that variations in the frequency responses of PLC channel, especially under transient condition within the transmission line (TL) can be investigated more effectively by using the transient model. Performance of transient model is found to be significantly better than the previously available work in the literature. More accurate results are achieved in simulation as compared to results obtained from typical

Role of Narrow-Band Low Data Rate Power Line Communication in Smart Grids and Noise Reduction Strategy

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Design of smart cooling system for power transformer

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