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Design of Intelligent Temperature Experimental System Measuring and Controlling Base on Virtual Instrument Technology

Author: ZhongZuoZuo
Tutor: ZhaoHeMing
School: Suzhou University
Course: Electronics and Communication Engineering
Keywords: Temperature Control System Expert PID control LABVIEW MATLAB
CLC: TP273
Type: Master's thesis
Year: 2009
Downloads: 180
Quote: 1
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Abstract


Electric furnace is in the industrial process , the application of a very wide range of heating equipment , laboratory electric furnace with a nonlinear , time-varying lag, asymmetry , conventional PID control is difficult to achieve high control accuracy , and only in the parameters accurate and the system does not change dramatically tuning can be achieved , however, general electric furnace temperature control system is difficult to meet , so the paper proposes a comprehensive strategy intelligent PID control algorithm is used to achieve electric heating precise temperature control of the furnace . The paper first describes the overview of the development of the temperature control system at home and abroad , and then combined with automated testing technology and virtual instrument technology trends , a LABVIEW the performance characteristics of the process and the graphical development platform based on study temperature measurement and control , proposed based on virtual instrument intelligent temperature monitoring and control technology experimental system solutions and systems hardware, software, made ??an in-depth study . Followed by the establishment of the electrical heating furnace temperature control system model , and then according to this model , the initial value of the PID controller parameters obtained in accordance with the time-domain - based PID parameter tuning rules , the use of expert PID control advanced control theory online real-time to change the strategy of the PID control parameters to adapt to the needs of the process control , to overcome the impact of time-varying systems using LABVIEW and MATLAB mixed programming algorithm part . Finally, by NI data acquisition card and LABVIEW programming software to achieve the temperature control system design methods and analysis of experimental results . The system has simple operation , friendly interface and high degree of common , multi- course meet the automatic control technology , the virtual instrument technology , detection and sensing technology teaching and experiment .

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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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