Implementation of a Smart Grid Inverter through Embedded Systems

This paper focuses on the integration of the inverter into the Smart Grid environment. This work consists of developing an Intelligent Electronic Device (IED) which can perform measurement and protection functions. Our work focuses on the development of a platform for the real-time monitoring, measurement of power quality and electrical parameters, the implementation of the main functions of a protective relay and the detection of power quality events, in particular sags, swells, transients and faults. This lED becomes part of the inverter electronic equipment as an embedded system. The following work presents the proposed IED architecture for multifunctional processing, synchronization and communication in order to fulfil the requirements of Distributed Generation grid connection. The main goal here is detection and evaluation of voltage disturbances with higher-order statistics. Different types of disturbances are tested and results obtained are successful.