基于逐層預(yù)測(cè)模型的感應(yīng)電機(jī)效率優(yōu)化滑模控制
[Abstract]:Reducing rotor flux is an effective method to optimize the efficiency of induction motor under light load. However, the rotor flux is affected by the variation of motor parameters, in order to ensure the optimal operation efficiency of induction motor. The key to the problem is to obtain the appropriate rotor flux value under different working conditions. In order to improve the prediction accuracy of rotor flux, a hierarchical prediction model based on binary tree type hierarchical neural network is proposed in this paper. In this model, the prediction range is refined layer by layer and multiple neural networks with the same structure are selected for recursion. The given rotor flux is obtained under complex working conditions, and the system efficiency is optimized. In addition, a sliding mode variable structure control strategy based on a new approach law is designed to improve the speed response of the motor in the process of efficiency optimization, so as to ensure the high efficiency of the system under light load and the rapid response of the speed. The effectiveness of the scheme is verified by simulation and experiments.
【作者單位】: 河北工程大學(xué)信息與電氣工程學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(11272112) 河北省科技攻關(guān)(12213912D)資助項(xiàng)目
【分類號(hào)】:TM346
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