Event-driven intermittent control
Event-driven intermittent control
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DOI：
10.1080/00207170902978115
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发表时间：
2009-01-01
影响因子：
2.1
通讯作者：
Wang, Liuping
中科院分区：
文献类型：
--
作者：
Gawthrop, Peter J.;Wang, Liuping
具有固定采样间隔的间歇控制器被改造成事件驱动控制器。使这成为可能的间歇控制的关键方面是使用基函数，或者等效地，广义保持来生成样本间开环控制信号。该控制器结合了响应已知信号的前馈事件和响应检测到的干扰的反馈事件。后一个功能利用扩展的基函数生成器来生成状态的开环预测，以与测量或观察到的状态进行比较。间歇控制基于底层连续时间控制器；需要强调的是，这种连续时间控制器的设计很重要，特别是在存在输入干扰的情况下。给出了说明性的模拟示例。
An intermittent controller with fixed sampling interval is recast as an event-driven controller. The key aspect of intermittent control that makes this possible is the use of basis functions, or, equivalently, a generalised hold, to generate the intersample open-loop control signal. The controller incorporates both feedforward events in response to known signals and feedback events in response to detected disturbances. The latter feature makes use of an extended basis-function generator to generate open-loop predictions of states to be compared with measured or observed states. Intermittent control is based on an underlying continuous-time controller; it is emphasised that the design of this continuous-time controller is important, particularly in the presence of input disturbances. Illustrative simulation examples are given.