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'Flat phase' PID controllers

Mitchell, R.J. (2008) 'Flat phase' PID controllers. In: UKACC International Conference on Control 2008, Manchester, UK.

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Flat Phase PID Controllers have the property that the phase of the transfer function round the associated feedback loop is constant or flat around the design frequency, with the aim that the phase margin and overshoot to a step response is unaffected when the gain of the device under control changes. Such designs have been achieved using Bode Integrals and by ensuring the phase is the same at two frequencies. This paper extends the ‘two frequency’ controller and describes a novel three frequency controller. The different design strategies arc compared.

Item Type:Conference or Workshop Item (Paper)
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Computer Science
ID Code:14798
Uncontrolled Keywords:PID Control, Robust Performance, Phase Response, Linear Control.

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