基于PLC的泥沙输送实验平台冗余控制系统  

Redundancy control system of sand transport test stand based on PLC

作　　者：蒋爽[1,2] 倪福生[1,2] 滕俊迪 戴伟[1,2] 

机构地区：[1]河海大学疏浚技术教育部工程研究中心,江苏常州213022 [2]河海大学机电工程学院,江苏常州213022

出　　处：《机电工程》2016年第12期1488-1491,共4页Journal of Mechanical & Electrical Engineering

摘　　要：为了解决泥沙输送实验平台控制系统可靠性不高的问题,采用硬冗余技术,以西门子400H PLC为控制核心,分别在CPU、通信网络和上位机等方面进行了冗余设计,并进行了组态和编程实现,建立了具有冗余和容错功能的泥沙输送实验台控制系统。同时,通过USS通信协议,实现了315 k W西门子MIDIMASTER系列变频器的控制和参数采集,并利用Y-Link组件将其融入到冗余系统中,降低了大功率变频器对控制系统的干扰,丰富了采集参数。实验结果表明,冗余控制系统具有很高的容错性能,可以有效避免因宕机、通信中断或CPU报错等故障所造成的实验平台失控现象,从而大大提高了实验平台的控制可靠性。Aiming at the problem of lower reliability of a sand transport experiment, the hard redundancy technique was investigated. Basedon SIEMENS PLC 400H, respectively in the CPU, communication network and the host computer, the control system of a sand transport teststand with redundancy and fault safety function was established. Meanwhile, the control and parameters acquisition of 315kw inverter of SIE-MENS MID1MASTER series were realized through USS protocol and Y-Link module, then the interference of high power inverter was reducedand the acquisition parameters were enriched. The results indicate that the fault-tolerance performance of the redundancy control system isvery high, and the control failure which is caused by crash, communication interrupt, CPU fault and so on, can be effectively avoided. Sothe control reliability of the test stand is improved greatly.

关 键 词：泥沙输送 PLC 硬冗余 USS 疏浚 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]