It is an essential tool to control and monitor various measurements of the wind turbine generation system (WTGs), and it’s usual to include it together with the wind turbines. SCADA serves as the primary interface between the wind power plant operator and the wind farm equipment [1–4].
[pdf] Aiming at the problem of DC bus voltage fluctuation caused by the instability of input and output power of distributed power supply in DC microgrid, and considering the characteristics of dual active bridge （DAB） energy storage converter with bidirectional energy flow, a dual closed-loop model predictive control strategy based on internal model principle is proposed in this paper.
[pdf] An overspeed protection system for a wind turbine having a hub and at least one rotor blade mounted to the hub includes a rotation sensor adapted for measuring a rotor speed of said wind turbine; a comparator connected to the rotation sensor and adapted for comparing the measured rotor speed with a predetermined threshold value of the rotor speed wherein the comparator outputs a signal indicative of the comparison; and an auxiliary pitch drive controller connected to the comparator and adapted to receive the signal indicative of the comparison, the auxiliary pitch drive controller being further adapted for controlling a pitch drive unit of the wind turbine independently of a main turbine controller and, if the threshold value is exceeded, to adjust a pitch angle of the rotor blade of the wind turbine so that aerodynamic braking of the wind turbine is effected.
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