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This paper presents a converter topology for the realisation of high power grid simulators. This can be used for highly flexible simulation and testing of the grid compliance of renewable energy conversion systems, even for the certification procedure of the electrical characteristics.
Requests for high quality and continuity of supply have led to the study of DC micro-grids. The realization of these networks would allow exploitation of DC advantages, but it would also create fault clearance and selectivity problems because semi-conductors suffer over-currents and over-voltages. The use of traditional DC circuit breakers is often not acceptable. As an alternative, static switches...
This study addresses the fault protection issues that will be caused by the increased penetration of Renewable Energy Sources (RES). A new Distributed Wide Area Differential Protection (DWADP) scheme is proposed to overcome these problems, and hence to improve reliability of power systems. Tools of intelligence are integrated at the relay level, capable of generating optimal responses, based on communication...
Hybrid power systems continuously deliver power to the load from several renewable energy sources. For such systems, the use of a multiple-input converter (MIC) has the advantage of simpler circuit structure and lower cost, compared to the use of several single-input converters. By decomposing converters into basic cells, namely, pulsating source cells and output filters, a set of basic rules for...
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