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The trend of generating power at distribution voltage level, known as distributed generation, is thought to be the future of energy generation, as it is environmental friendly and brings many advantages especially for electricity consumers. The paper presents the study of a real Romanian weak distribution network; the microgrid, comprising a transformer and the associated feeders, supplies single-...
During the last years, the increased penetration of distributed generation (DG) has started to affect also the transmission system. The increasing presence of weak networks, together with unpredictable power produced by the DG units, has a considerable impact on the behaviour of the whole power system, starting from the DG units and passing to distribution/transmission levels. Voltage control, frequency...
The paper proposes a new fuzzy controller for variable speed wind turbines (WTs) in order to compensate the variations at the point of common coupling (PCC) by controlling the reactive power generated by WTs. A protection system is used to disconnect the WTs from the grid when the controller is unable to compensate the voltage variations. Simulations carried out on a real 37-bus Italian weak distribution...
As a promising renewable alternative, the wind power is highly expected to contribute a significant part of generation in power systems in the future, but this also bring new integration related power quality issues, which mainly consist of voltage regulation and reactive power compensation. Wind power, as a rule, does not contribute to voltage regulation in the system. Induction machines are mostly...
This paper deals with the impact of wind induction generators connected to weak distribution grids. The study presented in this paper, starting from the definition of a model regarding the wind speed, wants to evaluate the impact of the wind turbine connected to weak distribution grids. The main characteristic of the wind model is its simplicity in spite of the number of phenomena that can be simulated...
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