电液伺服驱动连铸结晶器非正弦振动控制系统设计

Design of Non-Sinusoidal Vibration Control System for Continuous Casting Mould Driven by Electro-Hydraulic Servo

设计了一种核心控制单元基于32位嵌入式微处理器,电液伺服驱动连铸结晶器的非正弦振动控制系统。控制策略采用PID算法,利用CAN总线实现控制器与基于LabVIEW实现的上位机实时通信监控系统。设计的控制系统将控制算法置在下位机中执行,上位机仅对结晶器进行状态量信息监测、参数修改以及开关量控制等功能。在通信中断的情况下,控制器仍可遵循既定振动规律控制结晶器振动。同时,为避免参数在线修改过程中对结晶器造成的振动冲击,采用阶梯式修改方法完成参数调整。

A kind of non-sinusoidal vibration control system that electro-hydraulic servo drive for ensuring mould that work stably and reliably was designed, and the central control unit based on the 32 bit embedded microprocessor. Realization of control strategy based on the PID algorithm, the controller communicated with PC by CAN bus. The design of monitoring system based on LabVIEW. The control algorithm of the control system is executed on PC, The host computer only monitors the status information of the mould, modifies the parameters and controls the switches, the controller can follow the vibration rule to operate the mould. At the same time, in order to avoid the impact of vibration to the mould during parameter modification process, using the ladder-type method to adjust parameter.