Abstract
Bilateral control architectures include multiple control elements. In general, the relation between a single control element and the stability of the entire system is non-linear. Therefore, stability is standard evaluated a posteriori, rendering the control design process to be complex and highly iterative. A priori understanding of stability constraints would simplify the design of control elements and, as performance is fundamentally limited by stability, could provide specific guidelines whether and how performance of the bilateral teleoperation system can be optimized. This paper presents a numerical visualization method that enables stability-based control design using classical loopshaping techniques: Frequency-domain Mapping of Bilateral Stability (FMBS). Unlike current stability-based control design approaches, the FMBS method i) is not limited to a fixed control element, a fixed control architecture or system dynamics and ii) enables the implementation of all often used stability criteria. The advantages of the FMBS method are theoretically validated through the use of two test cases, extracted from literature. Using the FMBS method, it is shown that control elements can be redesigned to achieve superior performance.
Original language | English |
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Title of host publication | 2013 World Haptics Conference, WHC 2013 |
Place of Publication | Piscataway |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 719-724 |
Number of pages | 6 |
ISBN (Print) | 9781479900886 |
DOIs | |
Publication status | Published - 19 Aug 2013 |
Event | 2013 IEEE World Haptics Conference (WHC2013) - Daejeon, Korea, Republic of Duration: 14 Apr 2013 → 17 Apr 2013 |
Conference
Conference | 2013 IEEE World Haptics Conference (WHC2013) |
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Abbreviated title | WHC 2013 |
Country/Territory | Korea, Republic of |
City | Daejeon |
Period | 14/04/13 → 17/04/13 |
Other | 5th Joint Eurohaptics Conference and the IEEE Haptics Symposium (IEEE WHC 2013 |
Keywords
- Bilateral control
- Bode diagram
- Haptics
- Loop Shaping
- Passivity
- Stability