A Robust Emulation of Mechanical Loads Using a Disturbance-Observer
This paper deals with a new control strategy for the programmable dynamometer to emulate dynamic loads. The main idea is to employ the disturbance-observer-based design and take the nominal model involved in the disturbance-observer design as the desired dynamics to be emulated. Compared to previous...
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MDPI AG
2019-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/12/2236 |
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doaj-370458ce182748d1817321fc9dff34572020-11-25T00:16:48ZengMDPI AGEnergies1996-10732019-06-011212223610.3390/en12122236en12122236A Robust Emulation of Mechanical Loads Using a Disturbance-ObserverKooksun Lee0Jeongju Lee1Juhoon Back2Young Il Lee3Department of Electrical and Information Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, KoreaDepartment of Electrical and Information Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, KoreaSchool of robotics, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, KoreaDepartment of Electrical and Information Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, KoreaThis paper deals with a new control strategy for the programmable dynamometer to emulate dynamic loads. The main idea is to employ the disturbance-observer-based design and take the nominal model involved in the disturbance-observer design as the desired dynamics to be emulated. Compared to previous approaches, the proposed approach does not require exact system parameters of the motor under test, and the range of emulation parameters is wider than previous results. A rigorous stability analysis, as well as a constructive design incorporating system uncertainty and the steady state error bound are presented. An experimental system is developed to verify the performance of the proposed method, and it is demonstrated that up to 20-times of inertia emulation with relatively small emulation error (speed error less than <inline-formula> <math display="inline"> <semantics> <mrow> <mn>6</mn> <mo>%</mo> </mrow> </semantics> </math> </inline-formula>) is achieved and that various loads such as friction can be emulated.https://www.mdpi.com/1996-1073/12/12/2236dynamic load emulationdisturbance-observerperformancePMSMdynamometer |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Kooksun Lee Jeongju Lee Juhoon Back Young Il Lee |
| spellingShingle |
Kooksun Lee Jeongju Lee Juhoon Back Young Il Lee A Robust Emulation of Mechanical Loads Using a Disturbance-Observer Energies dynamic load emulation disturbance-observer performance PMSM dynamometer |
| author_facet |
Kooksun Lee Jeongju Lee Juhoon Back Young Il Lee |
| author_sort |
Kooksun Lee |
| title |
A Robust Emulation of Mechanical Loads Using a Disturbance-Observer |
| title_short |
A Robust Emulation of Mechanical Loads Using a Disturbance-Observer |
| title_full |
A Robust Emulation of Mechanical Loads Using a Disturbance-Observer |
| title_fullStr |
A Robust Emulation of Mechanical Loads Using a Disturbance-Observer |
| title_full_unstemmed |
A Robust Emulation of Mechanical Loads Using a Disturbance-Observer |
| title_sort |
robust emulation of mechanical loads using a disturbance-observer |
| publisher |
MDPI AG |
| series |
Energies |
| issn |
1996-1073 |
| publishDate |
2019-06-01 |
| description |
This paper deals with a new control strategy for the programmable dynamometer to emulate dynamic loads. The main idea is to employ the disturbance-observer-based design and take the nominal model involved in the disturbance-observer design as the desired dynamics to be emulated. Compared to previous approaches, the proposed approach does not require exact system parameters of the motor under test, and the range of emulation parameters is wider than previous results. A rigorous stability analysis, as well as a constructive design incorporating system uncertainty and the steady state error bound are presented. An experimental system is developed to verify the performance of the proposed method, and it is demonstrated that up to 20-times of inertia emulation with relatively small emulation error (speed error less than <inline-formula> <math display="inline"> <semantics> <mrow> <mn>6</mn> <mo>%</mo> </mrow> </semantics> </math> </inline-formula>) is achieved and that various loads such as friction can be emulated. |
| topic |
dynamic load emulation disturbance-observer performance PMSM dynamometer |
| url |
https://www.mdpi.com/1996-1073/12/12/2236 |
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