Application of Intelligent Control in Inclined Shaft Hoist Electronic Control System of Water Diversion Tunnel
Three schemes in Center Yunnan Water Diversion Project Xianglushan Tunnel No.2 construction inclined shaft hoist are analyzed and studied in details,namely general electric control,PLC and frequency conversion electric control.The frequency conversion hoist electronic control system based on double PLC control is established.The application and key technology practice are verified.The results show that PLC control function and full digital frequency conversion technology are combined to greatly improve the stability and reliability of the operation.The speed regulation precision is high,thereby realizing the energy feedback of the motor to the power grid at full power.The double PLC main control system based on S7-300 is the core of the whole control system,which can be used for collecting the real-time running state of the hoist system,thereby controlling the motor accurately and stably.The brake shoe wear monitoring,signal communication,video monitoring and remote fault diagnosis of the hoist system are realized through on-line monitoring of multiple sensors such as displacement sensor,camera,etc.
intelligent controlwater diversion tunnelinclined shaft hoistelectronic control systemsafety reliability
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NSTL
万方数据
维普
