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文献利用离散相似法,编制了饱和非线性系统的数字仿真程序,但是它只能仿真比例放大器的饱和非线性过程,不能仿真PI调节器的饱和非线性过程.本文研究了PI调节器饱和及退饱和的物理过程,将数学模型离散化,编制了PI调节器饱和非线性的数字仿真程序,并对双环调速系统限幅状态下的起动过程进行了数字仿真,计算结果与文献利用抗扰性指标计算起动退饱和过程的数据完全一致,说明本程序是合理的.为研究电力拖动系统的数字仿真提供了实用的仿真模型.
In this paper, a digital simulation program of a saturated nonlinear system is developed by using the discrete similarity method, but it can only simulate the saturation nonlinearity of the proportional amplifier and can not simulate the saturation nonlinearity of the PI regulator.In this paper, Saturation physical process, the mathematical model discretization, the PI regulator saturated nonlinear digital simulation program, and the two-loop speed control system in the state of the starting process of a digital simulation, the calculation results and the use of anti-jamming The data of start-desaturation calculation of the index are exactly the same, which shows that this program is reasonable.It provides a practical simulation model for the study of digital simulation of electric drive system.