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Automation systems for substations based on IEC 61850 simplify the design, installation, and maintenance of the system with a significant cost reduction. Indeed, the industry considers safety and reliability of real-time systems an essential factor. In this scenario, GOOSE messages used in IEC 61850 communication networks for protection, control, and automation of substation are very important. This...
The Smart Grid is characterized by a decentralized management and dynamic electric network infrastructures. One of the main requirements for Smart Grid development is large-scale integration of very different power grid actors. The international standard IEC 61850 has been recognized as a solution enabling this integration. Harmonization based on IEC 61850 in the context of Smart Grid does not involve,...
This paper discusses the Brazilian photovoltaic grid-connected inverters standard comparatively with their European and North American counterparts. The electrical characteristics between the photovoltaic grid-connected inverter system and the electrical distribution network, required by the ABNT NBR 16149 standard, are described in detail. A comparison with its related standards in Europe (IEC Std...
This paper presents a compression algorithm for power quality (PQ) signals, which does not separate the signal into stationary and transient components. The proposed algorithm is composed of a number of different compression techniques which are combined to improve both compression ratio and total computing time. This method is based on a sequence of three phases. The first phase transforms the signal...
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