Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth Filter
A novel discrete-time inverted decoupling internal model control (IMC) strategy is proposed for discrete-time multivariable systems with time-delays and RHP zeros. The strategy integrates an improved fractional-order Butterworth filter (FOBF) into the control framework. Key contributions include the...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/11124857/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849223090968461312 |
|---|---|
| author | Kaiyue Liu Shuke Lyu Rui Wang Chenkang Gao Xiangyu Yang Yongtao Liu |
| author_facet | Kaiyue Liu Shuke Lyu Rui Wang Chenkang Gao Xiangyu Yang Yongtao Liu |
| author_sort | Kaiyue Liu |
| collection | DOAJ |
| description | A novel discrete-time inverted decoupling internal model control (IMC) strategy is proposed for discrete-time multivariable systems with time-delays and RHP zeros. The strategy integrates an improved fractional-order Butterworth filter (FOBF) into the control framework. Key contributions include the design of a high-order improved FOBF by cascading stable fractional-order and integer-order filters, guaranteeing stability through W-plane mapping analysis, and developing an efficient direct discretization method based on frequency response matching. Simulation examples demonstrate the controller’s effectiveness in enhancing tracking performance and robustness against disturbances and model uncertainties. |
| format | Article |
| id | doaj-art-4d2a212e2e514eefaab2e147f387565f |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-4d2a212e2e514eefaab2e147f387565f2025-08-25T23:18:16ZengIEEEIEEE Access2169-35362025-01-011314359114360510.1109/ACCESS.2025.359874011124857Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth FilterKaiyue Liu0Shuke Lyu1https://orcid.org/0009-0002-3446-2118Rui Wang2https://orcid.org/0009-0003-2916-9387Chenkang Gao3https://orcid.org/0009-0007-0003-8980Xiangyu Yang4https://orcid.org/0009-0002-2307-1023Yongtao Liu5https://orcid.org/0000-0002-8404-9199School of Information and Control Engineering, North China Institute of Science and Technology, Beijing, ChinaSchool of Information and Control Engineering, North China Institute of Science and Technology, Beijing, ChinaSchool of Emergency Equipment, North China Institute of Science and Technology, Beijing, ChinaSchool of Information and Control Engineering, North China Institute of Science and Technology, Beijing, ChinaSchool of Information and Control Engineering, North China Institute of Science and Technology, Beijing, ChinaSchool of Information and Control Engineering, North China Institute of Science and Technology, Beijing, ChinaA novel discrete-time inverted decoupling internal model control (IMC) strategy is proposed for discrete-time multivariable systems with time-delays and RHP zeros. The strategy integrates an improved fractional-order Butterworth filter (FOBF) into the control framework. Key contributions include the design of a high-order improved FOBF by cascading stable fractional-order and integer-order filters, guaranteeing stability through W-plane mapping analysis, and developing an efficient direct discretization method based on frequency response matching. Simulation examples demonstrate the controller’s effectiveness in enhancing tracking performance and robustness against disturbances and model uncertainties.https://ieeexplore.ieee.org/document/11124857/Internal model controlbutterworth filterdiscrete-time controlinverted decouplingmultivariable systemprocess control |
| spellingShingle | Kaiyue Liu Shuke Lyu Rui Wang Chenkang Gao Xiangyu Yang Yongtao Liu Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth Filter IEEE Access Internal model control butterworth filter discrete-time control inverted decoupling multivariable system process control |
| title | Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth Filter |
| title_full | Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth Filter |
| title_fullStr | Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth Filter |
| title_full_unstemmed | Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth Filter |
| title_short | Discrete-Time Inverted Decoupling Internal Model Control of Multivariable Systems Based on Improved Fractional-Order Butterworth Filter |
| title_sort | discrete time inverted decoupling internal model control of multivariable systems based on improved fractional order butterworth filter |
| topic | Internal model control butterworth filter discrete-time control inverted decoupling multivariable system process control |
| url | https://ieeexplore.ieee.org/document/11124857/ |
| work_keys_str_mv | AT kaiyueliu discretetimeinverteddecouplinginternalmodelcontrolofmultivariablesystemsbasedonimprovedfractionalorderbutterworthfilter AT shukelyu discretetimeinverteddecouplinginternalmodelcontrolofmultivariablesystemsbasedonimprovedfractionalorderbutterworthfilter AT ruiwang discretetimeinverteddecouplinginternalmodelcontrolofmultivariablesystemsbasedonimprovedfractionalorderbutterworthfilter AT chenkanggao discretetimeinverteddecouplinginternalmodelcontrolofmultivariablesystemsbasedonimprovedfractionalorderbutterworthfilter AT xiangyuyang discretetimeinverteddecouplinginternalmodelcontrolofmultivariablesystemsbasedonimprovedfractionalorderbutterworthfilter AT yongtaoliu discretetimeinverteddecouplinginternalmodelcontrolofmultivariablesystemsbasedonimprovedfractionalorderbutterworthfilter |