Michel Artenstein

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The power transmission utility in Uruguay (UTE) has commissioned an HVDC station at the Melo substation to provide a link to the transmission system in Brazil. Uruguay's indigenous hydro power resources have been almost fully exploited and can be an un-predictable source due to prolonged dry seasons. By linking to the much larger Brazilian power system,(More)
The incorporation of several hundred megawatts of wind generation will require modifications both of regulations and the operating procedures of the Uruguayan electrical system. It becomes necessary, therefore, to develop studies which allow understanding the behaviour of the electrical system once that generation is present. This paper aims to deepen and(More)
This work describes the building of an equivalent model of the Argentinian power system to be used in the study of dynamical phenomena of the Uruguayan system. By following the slow coherency methodology, the generators that oscillate coherently at the lowest natural frequencies of the interconnected system were identified with the help of the respective(More)
This paper describes the main features of an in-house software applied to the analysis of voltage collapse in power networks. This software may be applied not only for computing the voltage collapse point for a given load direction, but also for the “worst” load direction, applying algorithms based on the closest saddle-node bifurcation(More)
This paper presents the methodology implemented in UTE for the transmission system planning based in probabilistic load flows considering the variability of distributed generation. The motivation arises to migrate from a deterministic to a probabilistic planning method, using for the analysis the software developed in UTE, EPPTRA. A new way to assess the(More)
The paper describes first briefly the power installation under study and the relevant aspects of the well known theory of shunt reactor switching. A preliminary theoretical approach to the expected values of the switching overvoltages is presented as well as the relevant data acquired during the type tests performed on the circuit breakers. The detailed(More)
This paper presents a qualitative development for assess the main factors affecting the damping of the oscillation modes when wind farms based on variable speed turbines are incorporated in power systems. It will be shown that the main effects that determine the degradation or improvement of mode damping due to wind power generation lies in the alteration(More)
This work aims the description, modeling and simulation of the incorporation of a power system stabilizer (PSS) in variable speed wind turbines in order to dampen oscillation in power grids. The proposed PSS aims to alter the nature of the electric power injected by the wind farms to, in some sense, mimic the oscillatory behavior of synchronous generators(More)
The purpose of this paper is to analyze the small signal stability of the Uruguayan power system on a short to medium term according to the scenarios for the years 2013-2017, in which the transmission network will undergo major changes: first, the inclusion of large quantities of wind power and secondly, the implementation of major infrastructure projects(More)