In the last years, several studies about network allocation considering cross-border exchanges in Europe and Asia have appeared. For example, in Europe, there is a need to find a robust and fair mechanism for Inter-Transmission System Operators (Inter-TSO) compensation in the European internal electricity market to replace the provisional European Transmission System Operators (ETSO) mechanism. One of the main challenges is that the system operator of each country does not have information about the electrical networks of other countries, making the application of any network cost allocation method difficult.
ABSTRACT:The authorization is the complex process that guarantees the access to certain resources (physical or computer-based information system). In this article, we present our contributions to the creation and development of a new authorization concept based on qualifications to grant access to physical resources. The qualifications will be obtained through a learning process, and the access control to resources will be realized based on the qualifications, according to the abilities of the entities that request access right. This concept can be implemented by using any programming language, pointing out, in the same time, the necessity of using an integration platform. In this respect, we will present the phases of developing this concept, from the moment it became necessary to its abstractive representation, by going through its natural phases: definition of the component elements and their relations, workflow, and management. ß
In the present paper we analyse the stable and optimal operation of wind power systems, WPS, composed of wind turbines, TV, coupled with synchronous generators with permanent magnets (SGPM), high power SGPM in the Dobrogea area, 4MW turbines manufactured at General Electric. Based on the experimental data, the wind turbine models MM-WT and the MM-SGPM permanent magnet synchronous generator are determined. Using these mathematical models, simulations are made of rapid variations in wind speed over time and the conditions for stable and energy-efficient EEA operation are highlighted. It mainly analyses the evolutions in time of power and speed from the generator, in direct connection with the change in wind speed over time. At the end of the paper is given a power calculation algorithm at SGPM, based on wind velocity measurements and VUM, ω, so that the operation is stable and energy optimal.
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