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本文论述了用离散予估器补偿纯滞后的必要性。离散补偿器技术以广义的一阶和二阶脉冲传递函数为基础,它的设计方法也能方便地推广到高阶模型。所谓补偿器的设计,就是用比例调节器和负载予估器使静态偏差为零。采用与 Steiglitz-McBride 迭代前置波器模拟相结合的最小二乘回归,就是根据开环对象的输入—输出数据,去获得模型的脉冲传递函数系数和模型的纯滞后。一阶和二阶离散予估器两者都在 DECPDP 15/35计算机实现的,而且也在小型的水温度控制系统进行了模拟试验。离散史密特予估器和标准离散 PI 调节器可以作为与它们比较的基础。
This article discusses the necessity of compensating for a dead-time with a discrete predictor. Discrete compensator technology is based on generalized first and second order impulsive transfer functions, and its design method can be conveniently extended to higher order models. The so-called compensator design, is to use the proportional regulator and load estimator so that the static deviation is zero. Least squares regression combined with Steiglitz-McBride iterative pre-oscilloscope simulation is used to obtain the pulse transfer function coefficients and the model’s pure hysteresis based on the open-loop input-output data. Both the first and second order discrete estimators are computer implemented at DECPDP 15/35 and are also simulated in a small water temperature control system. Discrete Schmitt estimators and standard discrete PI regulators can be used as a basis for comparison with them.