两位PID调节器在轻纺工业电加热温度控制中有着较为广泛的当用。本文提出了一种可用于两位PID调节器和广义对象所织成的系统的数字仿真方法。只要对象的传递函数G_P(S)和调节器的参数是已知的,对象的被控变量在系统起动过程的变化就可以计算出来。本文所提出的方法是简单易行的,但却有较高的计算精度。此外,稍经变化,本文方法也可用来分析其他的位式控制系统。 Two PID regulator in the textile industry electric heating temperature control has a more extensive use. In this paper, we present a digital simulation method that can be applied to a system composed of two PID regulators and generalized objects. As long as the object transfer function G_P (S) and the parameters of the controller are known, the controlled variable of the object can be calculated during the system starting process. The method proposed in this paper is simple and easy, but it has higher computational accuracy. In addition, this method can also be used to analyze other bit control systems.