太阳能硅片多线切割机的改进型张力控制  

Improved Tension Control of Multi-wire Saw for Solar Silicon Wafer

作　　者：蒋近[1,2] 陈琳[3] 王庭[1] 

机构地区：[1]湘潭大学湖南省风电装备与电能变换协同创新中心,湖南湘潭411105 [2]湘潭大学智能计算与信息处理教育部重点实验室,湖南湘潭411105 [3]湖南广播电视大学信息工程系,长沙410004

出　　处：《控制工程》2015年第6期1099-1102,共4页Control Engineering of China

基　　金：湖南省自然科学基金资助项目(2015JJ3126);湖南省教育厅资助科研项目(13C916);湖南省重点学科建设资助项目;湘潭大学博士科研启动项目(12QDZ03)

摘　　要：针对太阳能硅片多线切割机的张力控制问题,提出一种基于改进型模糊滑模控制的直接张力控制方法。建立太阳能硅片多线切割机等效模型的运动方程,设计一个速度滑模控制器和2个张力滑模控制器,根据误差值定义积分滑模面,采用符号函数趋近律方法,利用李亚普洛夫函数证明算法的稳定性,使用模糊控制优化趋近律系数,利用双曲正切函数代替符号函数,改善系统动态性能,减少系统抖振,减小张力波动,保证系统稳定运行。仿真和实验结果证明了方法的正确性和可行性。Aimed at the problem of tension control of multi-wire saw for solar silicon wafer, a direct tension control method is proposed based on improved fuzzy sliding control. Equivalent model of running wire system is analyzed and the kinematics equation of model is established. A velocity sliding controller and two tension sliding controller are designed. Integral sliding surface is defined based on error, and sign function reaching law method is adopted. The stability of algorithm is proved through Lyapunov function. Reaching law coefficient is optimized through fuzzy control, and sign function is replaced by tanh function. The dynamic performance is improved, the chattering of system is reduced, fluctuation of tension is reduced and system stability is ensured. The simulation and experiment results verify the effectiveness and correctness of the proposed method.

关 键 词：太阳能硅片多线切割机 直接张力控制 改进型模糊滑模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]