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介绍一种盾构机泥水循环专用控制系统。该系统的执行机构为交流电机,结合盾构法施工各工况参数建立数学模型,给出受控对象渣浆泵的配套功率计算公式,针对渣浆泵这种流体类负载选择交流变频器,并将其作为从站加入到控制网中。系统以S7-300为主站控制器,与各渣浆泵从站和变频器从站以Profibus-DP方式连接,针对盾构机运行中的环境特点,选用工业触摸屏为上位机。系统扩展性好,可靠性高,已在多处工程中成功运行。
Introduce a special shield mud circulation control system. The actuator of the system is an AC motor, and a mathematical model is set up based on the parameters of each construction of the shield method. The formulas for calculating the matching power of the controlled slurry pump are given. For the fluid pump, And as a slave to join the control network. The system takes S7-300 as master controller, and connects with each slave pump station and inverter slave station by Profibus-DP way. According to the environmental characteristics during the operation of shield machine, the industrial touch screen is selected as the upper computer. System scalability, high reliability, has been successful in many projects.