Dynamic modelling of a wind turbine with doubly fed induction generator

Slootweg, J.G.; Polinder, H.; Kling, W.L.

doi:10.1109/pess.2001.970114

Cited by 320 publications

(193 citation statements)

References 4 publications

(6 reference statements)

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“…The wind turbine rotor extracts the energy from the wind and converts it into mechanical power. A simplified model of the rotor was employed in [12][13][14]. This model assumes an algebraic relation between the wind speed and the extracted mechanical power, described with the following equation…”

Section: System Modelingmentioning

confidence: 99%

Power Control Design for Variable-Speed Wind Turbines

et al. 2012

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This paper considers power generation control in variable-speed variable-pitch horizontal-axis wind turbines operating at high wind speeds. A dynamic chattering torque control and a proportional integral (PI) pitch control strategy are proposed and validated using the National Renewable Energy Laboratory wind turbine simulator FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. Validation results show that the proposed controllers are effective for power regulation and demonstrate high-performances for all other state variables (turbine and generator rotational speeds; and smooth and adequate evolution of the control variables) for turbulent wind conditions. To highlight the improvements of the provided method, the proposed controllers are compared to relevant previously published studies.

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Section: System Modelingmentioning

confidence: 99%

Power Control Design for Variable-Speed Wind Turbines

et al. 2012

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“…For the same reason a shorter time vector has been chosen, excluding the time instants that were too close to T EN D and that, after direct verification, represented suboptimal switching times for the turbines. The solution (T ,ρ) of problem (9) for T EN D = 500s has been calculated using the parameters in Slootweg et al (2001):…”

Section: Simulation Resultsmentioning

confidence: 99%

Frequency support by scheduling of variable-speed wind turbines

Paola

Angeli

Štrbac

2014

IFAC Proceedings Volumes

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This paper characterizes optimal control policies for wind farms operated as frequency response services in case of a fault of conventional generators. The frequency support is provided through temporary over-production: when frequency drops, the turbines move from the steady-state operating point and extra power is produced by slowing down the turbines and releasing part of their kinetic energy. The control task is formulated and solved as an optimal containment problem: the time during which an extra quantity of power can be produced, within the set speed constraints for each turbine, is maximized. The solutions are calculated and compared for different assumptions on the electric torque of the turbines.

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“…However, this value has been reported in extensive literature for horizontal axis wind turbines as a nonlinear function of the tip speed ratio (λ) and the pitch angle of the turbine (θ), as represented in eqn. (2) [4]:…”

Section: Rotor Design Of a Horizontal Axis Hydrokinetic Turbinementioning

confidence: 99%

Design of a hydrokinetic turbine

Chica

Pérez

Rubio-Clemente

et al. 2015

WIT Transactions on Ecology and the Environment

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Hydrokinetic turbine power production depends on the interaction between the rotor and water. Therefore, an optimum geometry of the rotor must be designed and constructed to capture the maximum water energy and convert it into a usable energy. The steps involved in the design and numerical simulation of a small horizontal axis hydrokinetic turbine rotor are presented based on the same incompressible flow techniques used for designing wind turbines. Three blades of a 1 Hp (746 W) prototype hydrokinetic turbine were designed for a water velocity of 1.5 m/s with a tip speed ratio of 6.325, an angle of attack of 5• and 0 • as the pitch angle; in order to obtain the maximum power coefficient of the turbine. This coefficient was 0.4382, near the Betz limit. S822 airfoil was used to generate the coordinates of the blade. CFD simulation was carried out using Ansys CFX to estimate the performance of the blade design. Furthermore, FEM was successfully used for stress calculations on turbine blades under the influence of centrifugal and hydrodynamic loading.The designed hydrokinetic turbine can be used for pico hydro generation in rural communities non-connected to electricity services through the national interconnected electric system, due to its simple structure, and low cost of initial investment. Additionally, it can be locally manufactured, the environmental impact is negligible, since large dams are not involved, and the schemes can be managed and maintained by the consumer.

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Dynamic modelling of a wind turbine with doubly fed induction generator

Cited by 320 publications

References 4 publications

Power Control Design for Variable-Speed Wind Turbines

Power Control Design for Variable-Speed Wind Turbines

Frequency support by scheduling of variable-speed wind turbines

Design of a hydrokinetic turbine

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