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Risk analysis of islanding of photovoltaic power systems within low voltage distribution networks

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(2002)

Abstract

The purpose of this study was to apply formal risk analysis techniques to the issue of islanding of photovoltaic power systems within low voltage distribution networks. The aim was to perform a first pass calculation to determine the additional level of risk that islanding could present to the safety of customers and network maintenance staff. In the event of a loss of mains supply, grid-connected PV systems are required to automatically disconnect from the grid in order to prevent the network from islanding. This study has identified the reliability required of the islanding detection and control systems and their installation, based on standard procedures for developing a safety assurance strategy.

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