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研究有效消除伺服系统间隙非线性引起的极限环的方法 .设计制作含有间隙前后位置检测的数字伺服系统 ,对直接补偿、BP神经网络补偿、换向补偿等方法进行实验研究与对比 .实验结果证明 3种补偿方法均可有效地消除极限环 .直接补偿算法精度较差 ,配以精度补偿可取得更佳效果 ;换向补偿算法精度最高 ;BP神经网络补偿算法的精度介于两者之间
A method to effectively eliminate the limit cycle caused by the nonlinearity of the servo system gap is studied.The digital servo system with position detection before and after the gap is designed and manufactured.The methods of direct compensation, BP neural network compensation and commutation compensation are researched and compared.Experimental results show The three kinds of compensation methods can effectively eliminate the limit cycle.Direct compensation algorithm accuracy is poor, with precision compensation can achieve better results; commutation compensation algorithm has the highest accuracy; BP neural network compensation algorithm accuracy between the two