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Research of Port Water Supply System with Constant Pressure Based on Data Driven Control Method

Author: LiDaChuan
Tutor: PanZuoZuo
School: Lanzhou University of Technology
Course: Control Theory and Control Engineering
Keywords: Port Water Supply System Data driven control Model - free adaptive control Genlock switching VVVF
CLC: TP273
Type: Master's thesis
Year: 2010
Downloads: 93
Quote: 0
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Abstract


The lack of water resources , but because of the degree of automation of the long-standing water supply system has been lagging behind the West, plus water supply equipment and outdated pipe network , resulting in a lot of water wastage , thereby increasing the degree of automation of the water supply system , limited savings water resources become an important issue for the development of the times . Frequency conversion constant pressure water supply system is not only better able to maintain constant water pressure , and can also save energy. Therefore, the research has great theoretical and practical significance . In this paper, based on analysis of the principles of the port pressure water supply system , control system program design . Synchronous switching technology in the system as well as GPRS remote communication technologies . Due to the water supply system controlled object is a higher order , large delay , nonlinear systems with time-varying parameters , can not establish a precise mathematical model , at the same time when large changes in water demand , pump motor by variable frequency power supply to the power frequency the impact of over- voltage and over-current power supply switching process , and therefore this paper model free adaptive control algorithm and a phase-locked loop synchronous switching technology combination to form the double-loop control , the harbor water supply system pressure to achieve the stable . In order to facilitate the remote control , using GPRS communication technology instead of traditional cables and data transmission radio as a medium of communication , so as to increase the degree of automation of the entire control system . Theoretical analysis and simulation to verify the effectiveness of the control strategy . On the basis of theoretical analysis of the the port constant pressure water supply control system hardware and software design . Hardware control circuit , signal acquisition circuit , synchronous switching circuit , GPRS communication module circuit design , modular software thinking , given the constant pressure water supply , GPRS communications, PC monitoring , synchronization switching a detailed flowchart of the work function module .

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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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