Method for inhibiting ice load of offshore wind turbine based on variable pitch control
An offshore wind turbine and ice suppression technology, which is applied in the control of generators, control systems, engine control, etc., can solve the problems of difficult installation and adjustment, inability to guarantee real-time performance of wind turbines, and poor flexibility
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[0064] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0065] In this embodiment, a 5MW modern variable-speed variable-pitch offshore wind turbine is used as the research object, and a high-fidelity simulator is used for simulation, and the sampling time is 0.01s.
[0066] figure 1 It is a schematic diagram of the implementation steps of the method of suppressing ice load for offshore wind turbines based on pitch control.
[0067] Step 1 Model building process is as follows:
[0068] (1) Wind turbine model
[0069] 1) Aerodynamic model
[0070] The aerodynamic system of the fan is the key to the wind energy captured by the fan. According to the Betz theory, the aerodynamic power and mechanical torque of the rotor captured by the fan are:
[0071]
[0072]
[0073] where ρ a is air density; R is fan rotor radius; v w is the average wind speed passing through the wind rotor; C P (λ, β) is the rotor power coeff...
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