Fan damping adaptive control method based on PSO optimization and controller thereof

Abstract

The invention discloses a fan damping adaptive control method based on PSO optimization and a controller thereof. The method comprises the following steps of 1, designing a damping controller mathematical model, and initializing the frequency and the damping ratio; 2, modifying damping controller parameters to obtain drive chain damping; 3, acquiring particle speed; 4, obtaining a particle historical optimal position; 5, acquiring a particle position; and 6, judging whether the optimal value of the allowable range is judged according to the damping ratio error; and obtaining the optimal valueof the damping controller parameters through the PSO algorithm, finding the optimal value of the damping controller parameter through the PSO algorithm, and finally achieving the required transmissionchain damping value after the set damping controller adds the torque ring. The fan damping adaptive control method is simple in algorithm, easy to implement, good in running speed and low in calculation amount, and the model performance and stability can be guaranteed.

Description

technical field [0001] The invention relates to the technical fields of wind power generation, adaptive damping controllers and intelligent control, in particular to a PSO-based optimization-based damping adaptive control method for wind turbines and a controller thereof. Background technique [0002] The wind turbine has a very complex mechanical structure, and each component has different natural frequencies. When the wind turbine is running, the operating state of the natural frequency of the main components should be avoided, so as to reduce vibration and achieve stable operation. Therefore, vibration control is particularly important for the design of wind power controllers. As an important part of wind turbines, the vibration control of the transmission chain is related to important indicators such as the stability of the wind turbine operation and power generation. Therefore, the precise design of the transmission chain damping controller is of great importance. signi...

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Problems solved by technology

[0004] The present invention is to overcome the technical problem that the traditional manual debugging damping controller parameters are difficult to obtain, the efficiency is low, and the optimal parameters cannot be guaranteed, and a PSO-based adaptive control method for wind turbine damping and its controller are provided, aiming at wind power The torque loop operation of the unit and the damping controller of the transmission chain, through the improved particle swarm optimization algorithm, that is, the PSO algorithm, optimizes the parameters of the transmission chain damping controller, and can obtain the optimal parameters with a small labor cost

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