基于BP-PID的电主轴单元闭环稳定性温控策略

发布时间：2018-02-27 14:25

本文关键词： 电主轴 BP-PID 闭环稳定性温控温度场热误差　出处：《天津大学学报(自然科学与工程技术版)》2017年08期 　论文类型：期刊论文

【摘要】：针对传统开环、同一化循环控温策略对电主轴单元结构温度场及精度稳定性控制方面的不利影响,基于PID控制与BP神经网络相结合的方式,提出了一种适用于电主轴单元结构的差异化和闭环稳定性温控策略,借助BP神经网络实现了PID控制策略在电主轴单元结构温度闭环控制中关键参数的自适应动态调整.最后,通过对比试验的方式验证了BP-PID差异化、闭环温控策略在电主轴单元结构温度场稳定性控制、热误差抑制方面的有效性,有利于精密机床精度及精度稳定性控制的实现.
[Abstract]:Aiming at the adverse effect of the traditional open-loop and identical cyclic temperature control strategy on the temperature field and precision stability control of the motorized spindle unit structure, based on the combination of PID control and BP neural network, this paper proposes a new method to control the temperature field and the precision stability of the motorized spindle unit. A temperature control strategy of differential and closed-loop stability for motorized spindle unit structure is proposed. The adaptive dynamic adjustment of key parameters of PID control strategy in the temperature closed-loop control of motorized spindle unit structure is realized by means of BP neural network. The effectiveness of BP-PID differential and closed-loop temperature control strategy in the control of temperature field stability and thermal error suppression of motorized spindle unit is verified by contrast experiments, which is beneficial to the precision machine tool precision and precision stability control.
【作者单位】：天津大学电气自动化与信息工程学院;天津大学装备设计与制造技术天津市重点实验室;河北工业大学机械工程学院;
【基金】：高档数控机床与基础制造装备科技重大专项项目(2012ZX04012-031,2013ZX04005-013,2014ZX04014-011,2015ZX04005001,2016ZX04004-002) 河北省自然科学基金青年基金资助项目(E2017202194) 河北省普通高等学校青年拔尖人才计划项目(BJ2017039)~~
【分类号】：TG502.3

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