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Apparatus for improved general-purpose PID and non-PID controllers
Apparatus for improved general-purpose PID and non-PID controllers
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机译:用于改进的通用PID和非PID控制器的设备
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摘要
An apparatus is provided for controlling a system to achieve a specified response. In one embodiment, the apparatus is a proportional, integrative, and derivative (PID) controller having a proportional element, an integrative element, and a derivative element coupled together. The elements respond to a reference signal and generate a control signal that causes a plant to generate a plant output. The proportional element has a gain element where the gain is a function of the ultimate gain of the plant (Ku) and the ultimate period of the plant (Tu). The controllers may also be embodied in non-PID controllers that share common elements, such as the use of: (a) Astrom-Hagglund controller output as an input for a subsequent controller; (b) internal feedback; and (c) a subsequent controller that performs a subtraction operation to generate the difference between the output of the Astrom-Hagglund controller and the output of the subsequent controller.
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机译:提供一种用于控制系统以获得指定响应的装置。在一个实施例中,该设备是比例,积分和微分(PID)控制器,其具有耦合在一起的比例元件,积分元件和微分元件。元件响应参考信号并生成使植物产生植物输出的控制信号。比例元素具有增益元素,其中增益是植物的最终增益(K u Sub>)和植物的最终周期(T u Sub>)的函数。控制器也可以体现在共享公共元素的非PID控制器中,例如使用:(a)Astrom-Hagglund控制器输出作为后续控制器的输入; (b)内部反馈; (c)执行减法运算以产生阿斯特罗姆-哈格伦德控制器的输出和该后续控制器的输出之间的差的后续控制器。
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