Abstract:
Energy is one of the sectors directly affecting the economic growth and forming a significant part of overall expenses in several industry branches, especially in manufacturing. The development of the energy sector requires significant investments which can only be attracted in a stable and predictable investment environment. Therefore, Latvian energy sector is being planned in a long-term both globally and at the European Union (EU) level. During the last two decades, increase in electricity demand and environmental concern resulted in fast growth of power production from renewable sources, where wind energy is one of the most efficient alternatives. The second important moment is the Baltic power system's development strategy, with the breakdown of continental Europe from the energy circle of BRELL until 2025. The purpose of this paper is devoted to the evaluation sufficiency of measures taken, taking into account integration of a large wind farm in the Latvian Electric Power System (EPS) in terms of stability. As well as proposed methods for detection of network parameters that are most vulnerable (voltage drop) to external impacts (sensors), determine their relationship with EPS parameters, try to use this information for improvement of EPS behavioural properties. Thus, availability of information on the location of sensors allows determining and controlling nodes, in which the biggest oscillations of operational parameters are observed due to disturbances in the system.
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