Experimental Analysis of Total Radiated Power by the Open Energy Meter 2G

M Briccola,C Landi,F Cascetta,A Delle Femine,D Gallo,M Luiso,P Giubbini

doi:10.1155/2019/4107145

Abstract

The company e-distribuzione S.p.A (the main Italian electricity distributor) has started in 2017 the massive installation of the second-generation smart electrical energy meters. These smart meters have several new features. In particular, the communication functions have been improved to enhance the reliability of the communication towards the concentrator: in addition to the traditional main PLC channel, a radio module has been added with a transmission around the frequency of 169 MHz. This paper assesses the characteristics of the emission due to this radio module, quantifying the total radiated power. The analyses were performed not only inside an anechoic room, to obtain repeatable results, but also in situations close to the normal operating conditions.

Highlights

The communication functions have been improved to enhance the reliability of the communication towards the concentrator: in addition to the traditional main power line communication (PLC) channel, a radio module has been added with a transmission around the frequency of 169 MHz. is paper assesses the characteristics of the emission due to this radio module, quantifying the total radiated power. e analyses were performed inside an anechoic room, to obtain repeatable results, and in situations close to the normal operating conditions
Introduction e company e-distribuzione S.p.A. is the main Italian electricity distributor, and it carries out the distribution service in about 7.500 municipalities included in the concession issued by the Ministry of Economic Development in 2003
ED has launched the installation of an Advanced Metering Infrastructure (AMI) in 2001, with a project known as Telegestore [1]. is currently working AMI consists of an integrated collection of devices, networks, and computer systems that includes 32 million smart meters at customers’ homes, 380 thousand of data concentrators, and some thousands of meters in medium-voltage/low-voltage (MV/ LV) substations fully dedicated to energy service applications (Figure 1). e system is devoted to measure and collect electricity metering data, on request or on the basis of predefined schedule, but it is able to remotely execute commercial operations like activations, deactivations, contractual power limit changes, and bad payer management

Summary

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Aware of how they use electricity, and can seize opportunities to achieve greater energy savings They represent a step towards the development of a smart grid [2,3,4,5]. To enhance the reliability of the communication towards the concentrator, in addition to the main PLC channel, a radio module, with a transmission frequency at 169 MHz, is used as the backup channel. In the considered smart meters, it is applied for the first time in Italy for the electricity metering, and the studies summarized in this paper are aimed to assess the characteristics of the emission spectrum due to the 169 MHz radio module, by quantifying the total radiated power [8,9,10,11].

Domestic appliances

Elevation plane

Max hold RMS

Findings

Yes No