金刚石压机压力误差补偿的PID控制研究

发布时间：2018-01-16 13:00

本文关键词：金刚石压机压力误差补偿的PID控制研究　出处：《液压与气动》2016年07期 　论文类型：期刊论文

【摘要】：金刚石压机压力控制系统性能的好坏决定了金刚石的合成品质,该液压系统是一个精度要求高、易受干扰、响应滞后的复杂机电液耦合系统,很难建立一个全程精确的系统模型。提出一种加入补偿因压力损失导致顶锤位移产生的误差,并结合单神经元PID的控制方法。采用位移传感器测量压机液压缸的有效行程,反馈至单神经元PID控制系统,引入有监督的Hebb性能学习指标,通过不断学习,自动调节PID控制器权值来提高跟踪精度。仿真实验表明,该控制方法易于处理器的编程,自适应性强,对系统的改进是有效的。
[Abstract]:The performance of pressure control system of diamond press determines the synthetic quality of diamond. The hydraulic system is a complex electromechanical and hydraulic coupling system with high precision, easy interference and delayed response. It is difficult to establish a complete accurate system model. A new method is proposed to compensate the displacement error caused by pressure loss. Combined with the single neuron PID control method, the displacement sensor is used to measure the effective stroke of the hydraulic cylinder of the press, feedback to the single neuron PID control system, and the supervised Hebb performance learning index is introduced. The tracking accuracy is improved by automatically adjusting the weight of the PID controller through continuous learning. The simulation results show that the control method is easy to program and self-adaptive, and it is effective to improve the system.
【作者单位】：桂林电子科技大学机电工程学院;
【基金】：广西制造系统与先进制造技术重点实验室主任基金(13-051-09-010Z)
【分类号】：TH137;TP273
【正文快照】： 引言人造金刚石是利用超高温超高压技术,通过石墨等碳质原料与某些金属触媒反应而成,具有导电率优良、耐腐蚀好、耐磨性佳等特点,广泛应用于工业、工艺领域。由于设备和技术的限制,我国人造金刚石始终处于中低档,出现了产量越大,价格越低的尴尬局面[1-2],其中主要原因是压力控

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