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Atomized aluminum powder classification process piping advanced control of wind

Author: GaoShengLiang
Tutor: ShaoCheng
School: Dalian University of Technology
Course: Detection Technology and Automation
Keywords: Aluminum Fuzzy Control Coordination and control Segmented control Advanced Control
CLC: TP273
Type: Master's thesis
Year: 2011
Downloads: 25
Quote: 0
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Abstract


Modern industry 's growing demand for fine aluminum powder , aluminum powder for increasingly high quality requirements . To meet the above requirements, aluminum production line not only requires the use of advanced equipment to increase the degree of automation of production , but also through improved control methods to improve product quality and production efficiency. So for aluminum production of advanced control applications research has important practical significance. This in-depth analysis of the atomized aluminum powder grading process control requirements determined for different stages of aluminum production characteristics of each subsystem stops, parameter control and alarm function design of the control strategy . One of the grading system pressure and air flow duct using advanced control strategies : use of sub- atmospheric pressure for each subsystem controls the pressure maintained at the rated speed range ; while the mutual coupling between the pipes for the pipeline interfere with air flow in long-term fluctuations , the impact aluminum classification accuracy problems, this paper presents a pipeline of advanced air flow control strategy : propose a fuzzy -PID control strategy to achieve precise coordination of air traffic control subsystem piping method using PID control excellent steady state characteristics and combined with excellent dynamic characteristics of fuzzy control , through the transition curve control points set up and coordinated control , which reduces the coupling interference between circuits to overcome the traditional PID control air flow control on the pipeline exists a large overshoot , settling time long shortcomings. Through simulation , the new control strategy rapid response , small overshoot , steady-state characteristics, and achieved good control effect. Based on the above control strategy design, aluminum production and advanced control system is based on proven Siemens PLC system as the core hardware and industrial machines and equipment constitute a process control network, through Step7 and WinCC software programming , hardware and software with the realization of the right of aluminum powder production process control . Aluminum production advanced control system , high precision, stable and efficient operation of safe , friendly and interactive interface to meet the business needs of high-volume precision aluminum for enterprises to create the conditions to improve economic efficiency .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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