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EPB Shield Machine Cutter Drive Supervisory Control System Design on CC-LINK

Author: WuYuPeng
Tutor: CaiQiZhong
School: Guangxi University of Technology
Course: Control Theory and Control Engineering
Keywords: EPB shield machine CC-LINK Sensorless vector control GP touch screen
CLC: TP277
Type: Master's thesis
Year: 2011
Downloads: 44
Quote: 0
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Abstract


With the acceleration of urbanization, the growing scarcity of land resources, urban underground space development and utilization has become an inevitable trend. Shield machine as a dedicated engineering machinery underground space development has broad market prospects. Earth pressure balance (EPB) shield machine is the most mature technology in the world today, one of the shield machine, cutting the soil with the excavation, transport soil ballast, assembled tunnel lining, measurement-oriented corrective function. Cutterhead system is the heart of the shield machine, and its commitment to drive the cutter rotation, the cutting excavation surface of soil mixing and the sealed cabin soil task, the boring job working device [3]. Driver monitoring system based on CC-LINK shield machine cutterhead drive motor sensorless vector control strategy of the cutterhead synchronization precise control, while the running state of the field devices, alarm information in real-time feedback to the human-machine interface. The system has an extremely important role to reduce the burden of dispatchers, shield construction automation and modernization to improve the reliability, security, shield machine running. The design of the the knife disk drive monitoring system built on the basis of the construction process and the mechanical structure, the face of the complexity of the construction geology, the the cutterhead drive system must have high reliability, ease of operation, and other features. Requirements for the shield cutter drive characteristics, the main contents of the monitoring system the following aspects: (1) selection of electrical components, such as inverters, circuit breakers, AC reactor, noise filter, current transformer and so on. Reasonable choice under the asynchronous motor control inverter, select the peripheral parts of the inverter, the inverter is determined, in order to ensure the power supply of the entire motor system. Transformers, PLC, touch screen options are also analyzed in detail. (2) CC-LIK Construction of the control system communication network. Start in CC-LINK communication protocol, communication theory, communication structure and understanding Q series PLC control system communication network construction, network building principles and network architecture and network parameters set highlights. Communication between the workstation PLC and inverter controllers PLC and GP touch screen controller PLC and workstation PLC parameter settings and address assignment. (3) the inverter parameter adjustment and control strategy designed to achieve 10 asynchronous motor synchronization control. Control strategy analysis of the characteristics for knife drive, control processes for the preparation and thought sensorless vector control with inverter control mode control program to write and compile. The GX Developer communication procedures and inverter startup program. (4) the system HMI design and system simulation. Elements of the HMI design into industrial design, application GP touch screen software GP-PRO/PB Ⅲ compile function cutterhead speed, the cutterhead torque, the real-time orientation of the cutter, real-time display. Build the framework of the hardware system after the commissioning of the entire system, including inverter parameter settings, detection of network communications.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Monitoring, alarm,fault diagnosis system
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