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本文研究了带有调压井的水轮机调节系统的稳定性问题。在数学模型中计入水轮机,发电机,负荷特性,调速器参数以及水力系统的特性。通过多种数例分析了这些参数对调节系统稳定性的影响,当井断面面积为托马值的二倍以上时,其稳定性与断面面积为无穷大时的稳定性已无本质区别;当断面面积小于托马值时在水轮机、发电机、负荷、调速器特性的影响下系统能保持稳定。文中给出了稳定边界的计算公式,还指出了这种调节系统稳定性的控制条件。 最近二十年耒水轮机自动调节理论及过渡过程的研究得到了非常迅速的发展。对于简单管水轮机调节系统的有关问题已经进行了较深入的研究,对于带有调压井的水轮机自动调节问题的研究尚不充分,近年耒随着应用数学的发展及电算机的普遍应用,为解决这一问题的计算分析提供了条件,而提出能计入各种主要因素的数学模型並编制正确的计算程序就显得十分重要了。本文对带有一个调压井的水轮机调节系统稳定性问题展开研究计算和讨论。
This article studies the stability of turbine regulation systems with surge tanks. The mathematical models include turbine, generator, load characteristics, governor parameters, and hydraulic system characteristics. The influences of these parameters on the stability of the control system are analyzed by various numerical examples. When the cross-sectional area of the well is more than twice the value of the torus, there is no essential difference between the stability and the stability when the cross-sectional area is infinite. The system is stable under the influence of turbine, generator, load and governor when the area is less than the horse’s value. The calculation formula of the stability boundary is given in this paper, and the control conditions for the stability of the control system are also pointed out. In the recent two decades, the research on theory and process of automatic regulation of water turbine has been very rapid development. For the simple tube turbine governing system has been carried out a more in-depth study on the regulation of turbines with surge wells research is not sufficient, in recent years, with the development of applied mathematics and the widespread use of computers, It is very important to put forward the mathematical model that can count various main factors and to compile the correct calculation program to solve the calculation and analysis of this problem. In this paper, the calculation and discussion of the stability of the turbine regulating system with a surge shaft are carried out.