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Coal-fired Heating Boiler Automatic Control System Design and Research

Author: FanHuanYu
Tutor: LiuJie
School: Northeastern University
Course: Mechanical and Electronic Engineering
Keywords: Electromagnetic vibration feeder system Heating boilers Fuzzy Control
CLC: TK223.7
Type: Master's thesis
Year: 2008
Downloads: 237
Quote: 0
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Abstract


Winter heating heating is a measure of quality of life for residents of northern China an important indicator , therefore , to heat -based heating boilers are widely used. However, due to China's current heating boiler control relatively low degree of automation of the boiler system's overall efficiency is not high , resulting in a lot of energy waste and atmospheric pollution. Since the boiler system has time-varying , nonlinear , uncertainties and other factors, make it difficult to establish its precise mathematical model , which uses mathematical models based on such traditional PID control law will be difficult to achieve satisfactory control effect. And now most of the heating boiler no independent feeding system and metering system , which gives the amount of statistics and raw materials costing a great deal of inconvenience. In view of the above reasons, the design proposed fired heating boiler control system problem . Fuzzy set theory in recent years with the development of computer technology , fuzzy control theory in all walks of life have been widely used, based on fuzzy control rules boiler computer control system much attention . To this end , this paper analyzes fuzzy control technology, computer-controlled heating boiler system is studied and designed , and with existing laboratory electromagnetic vibration feeder system to complete the coal-fired heating boiler control systems and feed metering system design The main contents are as follows: ( a ) the laboratory has equipment electromagnetic vibration feeder system for analysis and research. ( 2 ) on the fuzzy control theory has been studied summarized heating boilers demonstrated the feasibility of fuzzy control system program and its advantages. ( 3 ) for the heating boiler combustion system structure and operation mechanism were analyzed to establish a system of fuzzy control model , respectively, of the boiler combustion system to the coal , air , the wind system control law design. ( 4 ) The use of simulation software MATLAB7.1 fuzzy control toolbox, compared with the traditional PID fuzzy -PID control results, using ATMEGA128 AVR microcontroller design a boiler automatic control system hardware and prepare the system software.

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CLC: > Industrial Technology > Energy and Power Engineering > Steam Power Engineering > Steam boiler > Boiler constructed > Boiler automatic regulation and control devices
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