Nerve self-adaptation tracking control method for power of fans in wind field based on disturbance observer
A technology of adaptive tracking and disturbance observer, which is applied in the direction of adaptive control, general control system, control/regulation system, etc. It can solve the problems that need to be improved and do not take into account the mutual disturbance of wind turbines, etc.
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[0084] The present invention will be further described below in conjunction with embodiment.
[0085] In this embodiment, the neural adaptive tracking control method based on the disturbance observer for the fan power of the wind farm includes the following steps:
[0086] Step 1: Establish a system model of fan power
[0087] Aerodynamic power P generated by the fan a for:
[0088]
[0089] Where ρ is the density of the wind, v is the wind speed, R is the radius of the fan rotor, C P (λ, β) represents the power conversion efficiency of the fan; β is the pitch angle of the blade.
[0090] The tip speed ratio λ is determined by the following formula:
[0091]
[0092] where ω r is the angular velocity of the fan rotor, so P a Another expression is
[0093] P a = ω r T a
[0094] T a represents the aerodynamic moment;
[0095]
[0096]
[0097] There is the following mathematical relationship between the fan rotor and the generator
[0098]
[0099] ...
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