engleski

The Implementation of Smart Metering Systems for Electricity Consumption in Croatia

The smart metering system is used for the remote measurement of measurands for a purpose of billing, and to process and transmit measurement results. Generation and transmission of measurement information by electric impulses has already been used at summarizing billing meters where the base meter is equipped with the impulses generator which directly or indirectly emits impulse to a master summarizing meter. The application of more developed remote meter reading systems has intensified in the last decade of previous century. Today, most of distribution companies in Europe use remote meter reading systems to read the electricity consumption of industrial facilities on medium and high voltage level of distribution. The smart metering system allows continuous reading and recording of many measurands, e.g. power quality and load curve, as well as early-stage failure detection, monitoring of the meter lid opening alarm (detection of unlicensed actions), detection of the opposite energy flow and many other appropriate signals. The advantage of these systems, besides the remote reading, is the possibility to control and set-up the parameters of the system without sending a human to the location. All mentioned induces the long-term reduction in financial expenses for the distribution system operator. The most common communication systems for information and control signals transmission are GSM (Global System Mobile) and PLC (Power Line Carrier). PLC is prevailing lately due to its smaller cost and independence of the GSM operator. The PLC technology is mostly used to the closest distribution transformer station, from where information is carried to the rest of the system by optic cables. The primary constraint on application of described systems is cost reduction and reaching reasonable cost effectiveness.

AMR; PLC; smart metering; implementation

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