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Aeroelastic aspects of Wind Turbine (WT) have severe effects on power and voltage fluctuations of wind power systems. To mitigate these fluctuations, Energy Storage Systems (ESSs) can be utilized as a suitable option. In short term applications, Flywheel Energy Storage System (FESS) is considered as a proper choice among ESSs because of its fast response. In this paper, a wind farm comprising four...
This paper presents power quality issues of a grid connected wind generation system with a MW-class direct-driven permanent magnet synchronous generator (PMSG). A variable speed wind turbine model was simulated and developed with the simulation tool of PSCAD/EMTDC. The model includes a wind turbine with one mass-model drive train model, a PMSG model and a full-scale voltage source back to back PWM...
This paper proposes a mathematical model for the rotationally sampled wind speed fluctuation in relation to large wind turbine structure dynamics. The model encloses the wind speed fluctuations seen by a point on the blade at a given distance from the hub, the deterministic components induced by wind shear and tower shadow effects, and also the components generated by the tower and blades dynamics...
Taking the Xiangjiaba-Shanghai special high-voltage DC??800kV transmission line project being constructed as an example, based on the basic characteristics of fluctuating wind and Kaimal spectra, considering various influences such as structural style of long span transmission tower,characteristics of power spectral energy i.e,the improved weighted amplitude wave superposition (WAWS) method adopting...
In this paper, the dynamic response of wind turbine system under wind action is numerically investigated. First, the random Fourier spectrum and rotating Fourier spectrum are proposed in this paper. These dynamic excitation models are built by starting with the point of view of random function and combining the understanding of the physical mechanism of the random excitations. Then a wind-induced...
This paper presents a simulation model of a MW-level variable speed wind turbine with a permanent magnet synchronous generator (PMSG) and a full-scale converter developed in the simulation tool of PSCAD/EMTDC. Grid connected wind turbines are fluctuating power sources during continuous operation. A novel wind power fluctuations mitigation method by DC-link voltage control of variable speed wind turbines...
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