Differentiator-based disturbance observer

Xiangyang Li; Zhiqiang Gao; Wei Ai; Senping Tian

doi:10.1109/DDCLS.2019.8908853

Differentiator-based disturbance observer

Xiangyang Li
, Zhiqiang Gao
, Wei Ai
, Senping Tian

Electrical and Computer Engineering

South China University of Technology
Cleveland State University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

The analysis of nonlinear disturbance observer (NDO) is first given in detail and an equivalent differentiator structure is used to explain the NDO. The design procedure of NDO is given according to this equivalent structure. Then the structure and principle of the generalized differentiator-based disturbance observer (DBDO) is given and compared with NDO in their structure and algorithm. As one of DBDO, tracking differentiator (TD) based disturbance observer is applied to compare NDO in simulations. Simulations for disturbance estimation show that both NDO and TD based disturbance observer have very effective disturbance estimation performance but the later has less design restriction.

Original language	English
Title of host publication	Proceedings of 2019 IEEE 8th Data Driven Control and Learning Systems Conference, DDCLS 2019
Place of Publication	usa
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	976-981
Number of pages	6
ISBN (Electronic)	9781728114545
DOIs	https://doi.org/10.1109/DDCLS.2019.8908853
State	Published - May 1 2019
Event	8th IEEE Data Driven Control and Learning Systems Conference, DDCLS 2019 - Dali, China Duration: May 24 2019 → May 27 2019

Conference

Conference	8th IEEE Data Driven Control and Learning Systems Conference, DDCLS 2019
Country/Territory	China
City	Dali
Period	05/24/19 → 05/27/19

Keywords

Differentiator-based disturbance observer (DBDO)
Disturbance observer-based control (DOBC)
Nonlinear disturbance observer (NDO)
Tracking differentiator (TD)

Access to Document

10.1109/DDCLS.2019.8908853

Cite this

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title = "Differentiator-based disturbance observer",

abstract = "The analysis of nonlinear disturbance observer (NDO) is first given in detail and an equivalent differentiator structure is used to explain the NDO. The design procedure of NDO is given according to this equivalent structure. Then the structure and principle of the generalized differentiator-based disturbance observer (DBDO) is given and compared with NDO in their structure and algorithm. As one of DBDO, tracking differentiator (TD) based disturbance observer is applied to compare NDO in simulations. Simulations for disturbance estimation show that both NDO and TD based disturbance observer have very effective disturbance estimation performance but the later has less design restriction.",

keywords = "Differentiator-based disturbance observer (DBDO), Disturbance observer-based control (DOBC), Nonlinear disturbance observer (NDO), Tracking differentiator (TD)",

author = "Xiangyang Li and Zhiqiang Gao and Wei Ai and Senping Tian",

year = "2019",

month = may,

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doi = "10.1109/DDCLS.2019.8908853",

language = "English",

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booktitle = "Proceedings of 2019 IEEE 8th Data Driven Control and Learning Systems Conference, DDCLS 2019",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Li, X, Gao, Z, Ai, W & Tian, S 2019, Differentiator-based disturbance observer. in Proceedings of 2019 IEEE 8th Data Driven Control and Learning Systems Conference, DDCLS 2019., 8908853, Institute of Electrical and Electronics Engineers Inc., usa, pp. 976-981, 8th IEEE Data Driven Control and Learning Systems Conference, DDCLS 2019, Dali, China, 05/24/19. https://doi.org/10.1109/DDCLS.2019.8908853

Differentiator-based disturbance observer. / Li, Xiangyang; Gao, Zhiqiang; Ai, Wei et al.
Proceedings of 2019 IEEE 8th Data Driven Control and Learning Systems Conference, DDCLS 2019. usa: Institute of Electrical and Electronics Engineers Inc., 2019. p. 976-981 8908853.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Differentiator-based disturbance observer

AU - Li, Xiangyang

AU - Gao, Zhiqiang

AU - Ai, Wei

AU - Tian, Senping

PY - 2019/5/1

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N2 - The analysis of nonlinear disturbance observer (NDO) is first given in detail and an equivalent differentiator structure is used to explain the NDO. The design procedure of NDO is given according to this equivalent structure. Then the structure and principle of the generalized differentiator-based disturbance observer (DBDO) is given and compared with NDO in their structure and algorithm. As one of DBDO, tracking differentiator (TD) based disturbance observer is applied to compare NDO in simulations. Simulations for disturbance estimation show that both NDO and TD based disturbance observer have very effective disturbance estimation performance but the later has less design restriction.

AB - The analysis of nonlinear disturbance observer (NDO) is first given in detail and an equivalent differentiator structure is used to explain the NDO. The design procedure of NDO is given according to this equivalent structure. Then the structure and principle of the generalized differentiator-based disturbance observer (DBDO) is given and compared with NDO in their structure and algorithm. As one of DBDO, tracking differentiator (TD) based disturbance observer is applied to compare NDO in simulations. Simulations for disturbance estimation show that both NDO and TD based disturbance observer have very effective disturbance estimation performance but the later has less design restriction.

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KW - Disturbance observer-based control (DOBC)

KW - Nonlinear disturbance observer (NDO)

KW - Tracking differentiator (TD)

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Differentiator-based disturbance observer

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Keywords

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