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A digitalSTROM® system is based on concentrators that reside in the distribution board, act as power-meters for the individual distribution circuits and communicate with individual nodes installed within a home over differently modulated up- and downstream channels. This paper presents the advantages of the digitalSTROM® topology, elaborates on the modulation schemes that have been optimized to lend...
Impedance modeling for low voltage distribution network has important applications in power line communication and smart home constructions. Attribute to the topologies and loads connection, impedances of low voltage power line and loads are various and complicate. To obtain impedance characteristics of resident community distribution network, impedances characteristics with time and frequency are...
This work propose a power line (PL) channel identification methodology based on the impulse response theory using low cost digital standard technology. In order to achieve efficient broadband communications over PL channels in Small-Office Home-Office environments, it is necessary to improve the indoor PL channel models. Then the proposed methodology and model makes practical to generate a large database...
Power line communication provides an attractive alternative to traditional networks both to the user and the public utilities companies as it offers broadband Internet access, telephone service, cable television and home automation all of them collectively known as in-home services using the existing power delivery network. However, problems affecting power line communication transmission such as...
The complicated channel characteristics are the main obstacles for the development of 10 kV power line communication. Based on the two-port networks, the ABCD-parameters matrix channel model is established, in which the propagation rules of basic unit accord with the transmission line theory. The working attenuation of the whole network is analyzed, which reveals the causes of frequency selective...
The development of power line communication systems require detailed knowledge of the channel properties, such as transfer functions, interference scenario and channel capacity in order to choose suitable transmission methods. such a device turns out to be helpful for comparison of performance of different communication systems. In this paper, an attempt is made to study the analysis of two different...
Broadband power line communication (BPLC) systems use the existing electrical cables to transfer high-frequency communication signals. Its aim is to provide customers with a high-speed access to communication services such as Internet. The traditional methods which used to solve the parameters of the multi-conductor transmission line with the electromagnetic theory are very complex. By introducing...
This paper analyzes the special environment of underground coal mine, and points out that the existing underground communication is poor. It is very necessary to use suitable means to communicate under coal mine. Because of the special environment, there are no reports about the using of PLC underground. In this paper, the main underground PLC channel characteristics are analyzed by measuring and...
The power line communications has been applied as a data transfer method in both public electricity distribution networks and indoor distribution networks. The industrial low voltage distribution network may be utilized as a communication channel to data transfer required by the on-line condition monitoring of electric motors. The advantage of using power-line data transfer is that it does not require...
In this paper we investigated power line simulation method using PLCS3000 which can duplicate the real power line characteristics efficiently. It was confirmed that the influence on transmission characteristics of PLC when using SPD.
Power line communications (PLC) technologies rely on the power grid for data transmission. Since the communications channel is already deployed, this communication alternative is specially interesting for the power grid owner, i.e., the electrical utility (EU). Focusing on the MV distribution network, located after the last step-down electrical substation, with typical levels from 6 to 25 kV, feeds...
The aim of this paper is to illustrate the development of a theoretical and experimental study on the characterization of medium voltage (MV) cables in the frequency range 25-200 kHz. Two transmission line configurations, line-ground and line-line, were considered in order to evaluate the main parameters, such as the characteristic impedance and the attenuation constant alpha. A simplified model of...
Problems that power line communication (PLC) technology is faced to are different classes and types of conductors used for construction of medium and low voltage networks (non-insulated conductors, underground cables, aerial bundled conductors, semi-insulated conductors). These problems complicate unified implementation and installation of PLC equipment. Characteristics of respectable types of power...
Electrical energy consumers are demanding better customer service, higher power quality, higher energy measurement accuracy and more timely data. Utility companies all over the world are being forced to find solutions giving greater information on the population's power consumption. The automatic meter reading system (AMR) is one of the ways in which utilities are go-getting to achieve these goals...
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