Dissertation >

Research on Temperature Control of the Retort Based on Fuzzy Control Theroy

Author SunZuoHan
Tutor NaWenPeng
School Liaoning University of Technology
Course Control Theory and Control Engineering
Keywords ATP retort Oil shale Temperature control Cascade control Fuzzy PIDcontrol
CLC TE662.5
Type Master's thesis
Year 2014
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Along with the development of social economy. Oil shale, as a kind of importantresource, It has played an important role in providing energy and fuel. But Theunreasonable utilization of oil shale.Abandon will cause the spontaneouscombustion, smoke,pollution of the environment. The more people pay attention tothe industrial and oil shale retorting. The distillation control effect will directly affect thequality of the shale oil production. Thus the carbonization furnace system plays anindispensable role in shale oil refining process, In the system, Temperature control is a keylink, Therefore, the temperature control is of great significance inshale oilrefining production process.In this paper, the shale oil production line as the researchbackground. The ATPretort process, workflow, furnace bodystructureand working principle, Analysisof the difficulties of shale distillation furnace temperature control, It focuses on the shaleretorting furnace temperature control system are discussed and studied. This paper firstintroduces the control retort furnace temperature control system of cascade control and singleloop PID, In the study of the application of cascade control in temperature system, Wemainly study the main control objects and control objects. The supply of combustion air as thecontrol parameter of distillation process, The retort furnace temperature control system itselfhas inertia, lagging behind and is difficult to obtain the precise mathematical model,Through the analysis on production process of carbonizationfurnace, In this paper,the fuzzycontrol combine The PID parameter and setting temperature control system main control loop.So keep in the advantages of the PID controller. Parameter also can complete on-line tuningof the PID controller. Can adapt to the variations of model parameters of shaledistillation process Finally, through Matlab simulation. Analysis of the dynamic fuzzyPID controller response To make the comparison with the traditional cascade PID control.The simulation results show that Design of the fuzzy PID controller has small overshoot,Better anti-interference abilityShort adjusting time, Have a certain ability to adapt tothe change of parameters of shale distillationprocess.

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