Abstract
In the last years, the electrical distribution systems are undergoing one of their largest transitions in their long history towards smart grids. One of the key requirements and the first step in the path of smart grid is developing and deploying smart metering systems in distribution networks. In this regard, several projects co-funded by the European Commission (EC) have been carried out. FLEXMETER is one of the ongoing EU Horizon 2020 projects aiming at the development and demonstration of a flexible smart metering architecture. In this paper, first the different available measurements in the FLEXMETER project are introduced. Then different fault location methods are compared qualitatively and quantitatively to find the most appropriate one based on the FLEXMETER infrastructure. Finally a combined method as a hybrid solution is proposed to overcome the drawbacks of the previously proposed ones, while keeping their advantages.
Highlights
In the last years distribution networks are facing great changes and are moving towards the smart grid concept
One of the key aspects of smart grids is the presence of an advanced metering infrastructure, providing new services to the different actors
In the FLEXMETER project, a H2020 research project cofounded by the European Commission, a flexible smart metering architecture for multiple energy vectors is being deployed and will be tested in two demonstrators, Torino and Malmö [1]
Summary
In the last years distribution networks are facing great changes and are moving towards the smart grid concept. In addition to outage location, thanks to the measurements at HV/MV substations, it is possible to design an algorithm to identify the fault location on the primary MV lines For this purpose the meters in the HV/MV substation feeding the fault send the current and voltage waveforms or phasors immediately after the fault detection. Considering the different proposed fault location methods for distribution networks [5]-[15], selection of an appropriate one for a certain system is a task that requires special investigations. Different classes of distribution fault location methods are first compared qualitatively to select the most appropriate one based on their requirements, advantages and disadvantages. The proposed method matches the FLEXMETER infrastructure and its requirements, and exploits the new installation of smart meters in secondary substations
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