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The path planning of an autonomous surface vehicle in a lake for environmental monitoring has been modeled as a constrained case of the traveling salesman problem, in which the vehicle should visit a ring of beacons deployed at the shore of the lake for data exchange. The problem is solved using a genetic algorithm. The algorithm searches for the maximization of the area covered by the vehicle. Three...
The increasing civilian demand for autonomous aerial vehicle in the professional markets led to an abundance of inexpensive navigational hardware platforms and vehicle prototypes. Current photogrammetry-based applications require crisp and precise positioning of images so that the process does not fails. Also systems adaptable to the circumstances for better effectiveness, vehicles capable of vertical...
This paper presents the development of a protocol converter software (gateway) between two standards used by monitoring and control tasks in power electrical systems. At one side the legacy protocol IEC (International Electro-technical Commission) 60870-5-101 and on the other side the new protocol IEC 61850, which introduces a number of new concepts for the automation of substations, taking advantage...
Power electronic grid-connected converter topologies are widely used as grid interface to interconnect several renewable energy sources under the concept of distributed generation systems. These converters must ensure an active and reactive flux control, minimize the current and voltage harmonic distortions and perform a proper synchronization with the electrical grid. This paper presents an analysis...
The uncertainty of the irradiation and temperature availability in renewable energy sources, especially in photovoltaic (PV) systems in distributed generation topology, often involves the use of storage energy unit. The power flux variability from the PV systems to the storage energy unit due to an irradiation and temperature variations produce a variation of the flux power from the storage energy...
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