多变量非方系统的控制方法分析-控制科学与工程专业论文.docxVIP

西安 西安理工大学硕士学位论文 PAGE PAGE IV Abstract Title: A MULTIVARIABLE CONTROL METHOD FOR NON-SQUARE SYSTEMS Major: Control Theory and Control Engineering Name: ZHANG Xiuli Signatu阳M jj}1j; Supervisor: Prof. Han LIU Signature: b j J.p()户 Abstract With 由e progress of science and technology ，the process industry develop to a more specialized，security and economic way. The wide spread use of advanced control theories in actual indus位ial fields is successfully leading the process industry to seek for better self-developmen t.The refonnation must base on 由e reali守，也剧s traditional control technology， cspecially the PID control systems of DCS platform will still occupy 由e most sh缸es o[ controllers in 邵阳al industry fields owing to its advantages. MIMO Non-square systems are a common phenomenon in industrial process，IIowever the traditional industrial control systcm already couJd not so good. Therefore，making e1Torts to combine the advanced control strategies with traditional PJD controllcr presents a feasible way to the irnprovement of process control issues. And its also the objective ofthis research topic. In recent years，a variety of advanced control strategies have progressed rapidly，Process control domain appeared many new rcsearch results. Among all these，internal model control (IMC) stands out owingωits advantages as simple to design and adjust，rapid responsc speed 出 well as strong robustness. This paper focuscs on method of multivariable intemal model control ，ana1ysising the principle and prope而es of internal model control in detai1.0therwise， studying the problems of delay decoupling. Because the control of muJtivariable system process often encounter delays and coupling problem ，thus dealing with these problems is related to 由e control quality. This paper applies 出e IMC to control multivariable Non-square system. For the mu1ti- variable system，We must study decoupling.Decoupling is a very important ring in thc multivariable control.