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文献[1] 指出:双闭环直流调速系统,由于转速调节器的输出限幅作用,在突加给定的起动过程中,必然要发生转速退饱和超调。具有转速超调的系统,在制动过程中,不仅要产生反转的现象,而且对减速机产生正、反向冲击,影响其机械寿命,这在某些系统中是不允许的。采用微分反馈校正,可以使转速调节器提前退饱和,从而有效地抑制转速超调。本文从控制系统的数字仿真角度出发,研究了校正装置取不同的参数时,系统退饱和的动态过程,为正确设计校正装置提供必要的依据。
Literature [1] pointed out: double closed-loop DC speed control system, due to the output limiter role of speed regulator in the sudden start given a certain process, the inevitable need to speed out of saturation and overshoot. With overshoot speed system, in the braking process, not only to produce the phenomenon of reversal, and reducer positive and negative impact, affecting its mechanical life, which in some systems are not allowed. Using differential feedback correction, you can make the speed regulator early desaturation, thus effectively inhibiting the speed overshoot. Based on the numerical simulation of control system, this paper studies the dynamic process of system desaturation when taking different parameters of calibration device, which provides the necessary basis for correct design of calibration device.