Design of VRFT Based Feedback-feedforward Controllers for Enhancing Disturbance Rejection on Non-minimum Phase Systems

Chiluka, Suresh Kumar; Rao, A. Seshagiri; Seepana, Murali Mohan; Babu, G. Uday Bhaskar

doi:10.1515/cppm-2019-0069

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…The controller design based on the IMC scheme through VRFT is shown in Figure 2. Here, G P z ð Þ is an [8,13,23] From Figure 2, the output y d t ð Þ is written as…”

Section: Proposed Vrft-imc Design Approachmentioning

confidence: 99%

“…In the present work,

G_{normalP} (z)

is equal to

{\overset{G}{true}}_{normalP} (z)

and the

d (t)

is measured from

M (z)

. [ 8,13,23 ]…”

Section: Proposed Vrft–imc Design Approachmentioning

confidence: 99%

“…[ 3,4,7–12 ] The higher order controllers based on VRFT is designed with bandwidth and settling time based

M (z)

, that is,

^{‘} {z_{p}}^{’}

depends on design specification, where ‘ n ’ and ‘ d ’ of

M (z)

are chosen randomly selected, and the concept of robustness is not considered. [ 3,13 ] The proportional integral (PI)/proportional integral derivative (PID) controller is designed for multiple input multiple output (MIMO) systems using first‐order

M (z)

based on settling time in the literature [ 14–16 ] and second‐order

M (z)

. [ 17 ] The ‘ d ’ and ‘ α ’ of the

M (z)

are known from plant parameters and

^{‘} {z_{p}}^{’}

is selected according to the bandwidth.…”

Section: Introductionmentioning

confidence: 99%

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Robust control of discrete minimum and non‐minimum phase systems via data‐driven virtual reference feedback tuning and IMC

et al. 2022

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In this paper, we develop a novel robust control approach for discrete minimum and non-minimum phase systems via a combined data-driven virtual reference feedback tuning (VRFT) and internal model control (IMC) scheme. The first step in the conventional VRFT method controller design is the selection of the closed-loop reference model (M z ð Þ), and M z ð Þ selection is still an open problem. The integration of the IMC scheme and the VRFT method provides

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“…The controller design based on the IMC scheme through VRFT is shown in Figure 2. Here, G P z ð Þ is an [8,13,23] From Figure 2, the output y d t ð Þ is written as…”

Section: Proposed Vrft-imc Design Approachmentioning

confidence: 99%

“…In the present work,