基于动态矩阵的隔振器滞回动力自动控制系统设计

Design of Hysteretic Dynamic Automatic Control System for Vibration Isolator Based on Dynamic Matrix

摘要:

现有基于PLC的隔振器滞回动力自动控制系统存在控制误差高的不足，为此设计了一种基于动态矩阵控制算法的自动控制系统。系统的硬件部分由动态控制中心、伺服电机、动力传感器、前置信号放大器、及数据计算单元等关键的模块构成，为提高系统的控制性能在伺服电机模块中内置了型号的单片机控制器，保证电磁控制信号的稳定输出；依据动态矩阵控制算法原理设计了自动化控制系统的主控程序，并给出了动态预测矩阵控制的基本流程，利用动态滚动预测的模式来降低控制时域内的误差，并保证滞回动力值的稳定输出；分析数据表明，提出的自动化控制系统在功能性方面可以满足批量测试及远程控制的要求，在3个稳态值条件下的系统误差都明显低于传统隔振器控制系统，最高的误差输出在0.05之间。

Abstract:

The existing hysteretic dynamic automatic control system of vibration isolator based on PLC has the shortcoming of high control error, so an automatic control system based on dynamic matrix control algorithm is designed. The hardware part of the system is composed of dynamic control center, servo motor, power sensor, preamplifier and data calculation unit. In order to improve the control performance of the system, a type of MCU controller is built in the servo motor module to ensure the stable output of electromagnetic control signals. Based on the principle of dynamic matrix control algorithm, an automatic control system is designed. The main control program of the system and the basic flow chart of dynamic predictive matrix control are given. The model of dynamic rolling prediction is used to reduce the error in the control time domain and ensure the stable output of hysteretic dynamic value. The analysis data show that the proposed automatic control system can meet the needs of batch and remote testing in terms of functionality, and the system errors under three steady-state conditions are all satisfied. It is obviously lower than the traditional automatic control system, and the highest error output is less than0.05.