Control Strategy And Simulation Of Water Level In Marine Auxiliary Boiler

This study in a large tanker auxiliary boiler drum level. The main function of the boiler is to achieve energy conversion. Drum water level will directly affect the quality of steam and the safe operation of the boiler. So for boiler drum level control strategy is necessary.Article based on the dynamic characteristics of drum level control scheme proposed, water flow and steam flow are the main factors affect the water level. Analysis of water flow in the steam flow disturbance and the role of disturbance in the system separately, we get the dynamic characteristic equation.Widely used in engineering practice, the PID control article also makes a further study, analysis of control laws, find out the advantages and disadvantages. In intelligent control of the law, the comparison of fuzzy logic control and neural network control, weaknesses, summarized the fuzzy neural network control law.Finally, under the control identified in the software Matlab/simulink for simulation. Conclusion:the role of the step signal, the steam flow as a feedforward signal, water flow as the feedback signal in the boiler feed water system can get a good result.