Journal
INTERNATIONAL JOURNAL OF CONTROL
Volume 82, Issue 12, Pages 2235-2248Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207170902978115
Keywords
event-driven control; intermittent control
Categories
Funding
- Australian Advanced Manufacturing Cooperative Research Center (AMCRC)
- EPSRC [EP/F068514/1, EP/F069022/1, EP/F06974X/1]
- Engineering and Physical Sciences Research Council [EP/F069022/1, EP/F068514/1] Funding Source: researchfish
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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.
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