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Boiler Combustion Control System Based on Model Free Adaptive Control

Author: LiuMingKun
Tutor: CaiManJun
School: Yanshan University
Course: Control Theory and Control Engineering
Keywords: Model - free adaptive control Non-parametric model Industrial boilers Combustion control Air-fuel ratio
CLC: TK323
Type: Master's thesis
Year: 2007
Downloads: 365
Quote: 3
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Abstract


Industrial boilers as industrial production and life of the heat source and power source , accounting for a large proportion of the entire energy consumption . Industrial boilers burning is a complex time-varying dynamic process , highly nonlinear , tight coupling , large delay and strong interference , traditional control algorithm is difficult to achieve the ideal control effect and higher automatically put into operation rate . Improve the efficiency of the boiler running hot , reduce energy consumption and reduce environmental pollution , is of far-reaching significance in the Over the years , technological innovation and energy conservation issues . Boiler control the core difficult problems is to study how to improve the indicators of economic combustion of the combustion system , and how the most effective control of boiler combustion process . Model control (MFAC) based PID controller with the the model outer ring compensated boiler combustion control . The controller is designed based on the idea of ??modular design , it is the increase in traditional PID control system outside of a model for the control of the outer ring to compensate for system tracking error . The control system has a simple structure of the system , and easy to implement. The text of the combustion control system is divided into three loops : the load control loop , the air supply control loop, negative pressure control loop . By the boiler thermal analysis and research , to establish a numerical calculation model of the boiler combustion process , the use of online heat balance calculations and wind speed calculation , control parameters for boiler combustion control . In pulverized coal to the amount of powder , the air volume is difficult to measure the problem gives a feasible idea . The simulation results and industrial application examples show that this controller can control , to some extent, to overcome the drawbacks of traditional control algorithm for boiler combustion system .

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CLC: > Industrial Technology > Energy and Power Engineering > Thermal measurement and thermal automatic control > Thermal Automatic Control > Automatic control system
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