SCADA systems allow the remote operation of energy facilities such as wind power plants. In fact, most wind turbine vendors have designed and developed their own SCADA system in order to perform the control of their machines.
[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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One challenge in decarbonizing the power grid is developing a device that can store energy from intermittent clean energy sources such as solar and wind generators. Now, MIT researchers have demonstrated a modeling framework that can help. .
A flow battery contains two substances that undergo electrochemical reactions in which electrons are transferred from one to the other. When. .
A major advantage of this system design is that where the energy is stored (the tanks) is separated from where the electrochemical reactions occur (the so-called reactor, which includes the porous electrodes and membrane). As a result, the capacity of the. .
The question then becomes: If not vanadium, then what? Researchers worldwide are trying to answer that question, and many. .
A critical factor in designing flow batteries is the selected chemistry. The two electrolytes can contain different chemicals, but today. Lithium-ion batteries are favoured for their high energy density and longevity, making them a robust choice for ensuring the efficiency of wind turbines. On the other hand, lead-acid batteries offer a cost-effective solution, while flow batteries stand out for their scalability and extended lifespan.
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