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Control Strategy and Simulation of Water Level in Marine Auxiliary Boiler

Author: LuSun
Tutor: YangZhiYong；LeiLei
School: Wuhan University of Technology
Course: Naval Architecture and Ocean Engineering
Keywords: Boiler water level Control strategy Simulation
CLC: TP273
Type: Master's thesis
Year: 2011
Downloads: 26
Quote: 0
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Abstract


The object of this paper is the of large tankers auxiliary boiler drum level . The main function of the boiler is to achieve the energy conversion . Drum level directly affect the safe operation of the steam quality and boiler . So for boiler drum level control strategy is very necessary . The article based on the dynamic characteristics of the drum level control program , feedwater flow and steam flow is the main factor affecting the drum water level . Feedwater flow disturbance and steam flow disturbance separately after acting on the system , its dynamic characteristic equation . Engineering practice in the use of the PID control , this paper also do further study , analysis of the control law to identify its strengths and weaknesses . Intelligent control of the way the law of comparative fuzzy logic control and neural network control weaknesses, summed up the fuzzy neural network control law . Finally, a way to determine under control , simulation software Matlab / simulink . Concluded : step signal , steam flow as a feedforward signal , water flow as the feedback signal system boiler drum water level can get very good control effect .

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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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