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With the introduction of new guidelines regarding the connection of large wind farms to the grid, wind farms and equipment providers are facing with new opportunities and challenges. One of which is low voltage ride-through (LVRT). Despite of the new installations, there are a considerable number of wind turbines to be reformed to meet the requirements. In this paper, a brief explanation of the principle...
The fast development of wind power generation brings new necessary requirement for wind turbine to provide Low Voltage Ride-Through (LVRT) capability. The paper introduces the models of Doubly Fed Induction Generator (DFIG), converter and rotor active crowbar, and analyses characteristics of DFIG system with rotor active crowbar during grid voltage dip. A novel turn-on and turn-off control method...
This paper presents an improved Newton Raphson load flow algorithm considering distributed generation (DG) based on their control strategies. Different control strategies for various DGs are firstly investigated and the load flow model for direct-driven wind generator is especially mentioned. Then, each kind of DGs, including photovoltaic, wind turbine, fuel cell and microturbine, is assigned a bus...
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