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本文以矩阵为工具,改进了多变量调节系统自整性的设计方法,可以一次确定静态和动态自整条件。在满足自整条件以后,就可以将复杂的系统分解成几个独立的简单系统。这样,有利于对系统的分析和计算。本文结合双抽汽式汽轮机的实例进行了调节系统自整性条件的分析,并做出了动态过程的模拟计算结果。抽汽式汽轮机可以做为发电兼供汽用,也可以做为工业汽轮机用,如为高炉拖动压气机等。这种汽轮机的调节系统、其被调节量有转速,抽汽压力等数个。另外,它也有几个调节机构,每个调节量变化时,能同时控制几个调节机构。根据工艺上的要求,每一个调节量的变化(由于干扰或者给定的变化),不应影响其它被调节量,也就是说,要求系统是自整的。一般的方法是把静态与动态分开进行考虑,但比较复杂,概念也不够清楚。以矩阵为工具来设计和分析抽汽式汽轮机的自整调节系统,是一种简便而概念又清晰的方法,它能同时求得静态与动态自整条件。
In this paper, the matrix as a tool to improve the multivariable adjustment system design method of self-integrity, you can once determine the static and dynamic self-tuning conditions. After satisfying the condition of self-tuning, the complicated system can be decomposed into several independent simple systems. In this way, is conducive to the analysis and calculation of the system. In this paper, the analysis of the self-integrity condition of the control system is carried out with the example of double extraction steam turbine and the simulation results of the dynamic process are given. Exhaust steam turbine can be used as a power generation and steam supply can also be used as industrial steam turbines, such as dragging the blast furnace and so on. This turbine regulation system, the amount of its governor speed, extraction pressure, such as a few. In addition, it also has several adjustment agencies, each adjustment changes, can control several regulatory agencies. Depending on the technological requirements, the variation of each adjustment (due to disturbances or given changes) should not affect the other adjustments, ie the system is required to be self-adjusting. The general approach is to consider the static and dynamic separately, but more complex, the concept is not clear enough. Using the matrix as a tool to design and analyze the self-adjusting system of extraction steam turbine is a simple, conceptual and clear method, which can simultaneously obtain static and dynamic self-tuning conditions.