Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"Stability robustness"”.
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Multivariable stability robustness for control of flexible beams and trusses
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.
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Stability robustness of impedance controlled manipulators coupled to passive environments
Thesis. (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1987.
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Stability robustness to unstructured uncertainty for nonlinear systems under feedback linearization
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Performance Enhancement and Stability Robustness of Wing/Store Flutter Suppression System
… in their mission capabilities due to lack of robustness of the current passive wing/store flutter suppression system to both structured as well as unstructured uncertainties. The research program proposed here is to investigate the feasibility of using a piezoceramic wafer actuator for active …
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A systematic approach to modeling for stability-robustness in control system designs
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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Addressing Stability Robustness, Period Uncertainties, and Startup of Multiple-Period Repetitive Control for Spacecraft Jitter Mitigation
… challenges for hardware implementation. One is instability due to model errors or parasitic high frequency modes, the second is degradation of the final error level due to period uncertainties or fluctuations, and the third is bad transients due to issues in startup. Regarding these three …
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A unified approach to structure and controller design optimizations
… in optimizing for eigenvalue sensitivity and stability robustness with respect to parameter variations or unstructured uncertainties. In particular, the time domain approach to stability robustness is pursued. It is found that a recently proposed stability robustness criteria of Patel and Toda …
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Stability and performance robustness of discrete-time systems with structured uncertainty
The robustness of discrete-time systems in the presence of norm-bounded linear time-varying and/or nonlinear perturbations is addressed. A general framework for dealing with stability as well as performance robustness of such systems is set up whereby an arbitrary number of perturbations can be …
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Development and experimental validation of direct controller tuning for spaceborne telescopes
… which combines the high performance and stability robustness guarantees of modem, robust-control design with the spaceflight heritage of conventional control design, is proposed which will meet the strict requirements and maintain traceability to the successful controllers from …
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A Theory of Nonlinear Negative Imaginary Systems
… approach will be used to establish the stability robustness of a positive feedback interconnection of negative imaginary systems in the linear case under a set of theoretical assumptions. Then, these assumptions will be adapted in the nonlinear setup to establish the stability robustness …
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Facilitating seamless transitions in flexible microgrids: A unified control systems framework for enabling multi-mode inverters
… and challenges for grid performance, stability, and reliability. Inverter-based microgrids offer a promising solution for the large-scale integration of renewable resources, which often come with a high degree of uncertainty. However, the current state-of-the-art typically employs …
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The design of an H∞ voltage regulator for a predictive current controlled three phase PWM power converter
… issue, its design method allows both the stability robustness and performance robustness to be considered at the design stage. The design of the H∞ voltage regulator is based on the worst case scenario where the converter is subject to a load disturbance and its operation mode is changed …
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Robustification in Repetitive and Iterative Learning Control
… of in a model, as time goes to infinity. The stability robustness to model uncertainty however remains a fundamental topic as it determines the successful implementation of RC and ILC on any real-world system whose model dynamics cannot normally be determined precisely over all frequencies up …
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Design and control of a clutch for a minimally-actuated biped based on the passive-dynamic simple walker
… depend on ideal environmental conditions for stability. Robustness and control capabilities are increased with actuation, but so is the power consumption. Such actuated robots are designed to minimize the actuation requirement by exploiting the system natural dynamics system, but still need …
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Conservation in signal processing systems
… many of the useful theorems regarding the stability, robustness, and variational properties of circuits can be derived in terms of Tellegen's theorem, which states that a wide range of quantities, including power, are conserved. Conservation principles also lay the groundwork for a number …
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Missile autopilot design using Mu-Synthesis
… faster response time, and increased robustness to more severe environmental conditions. One of the most critical missile system elements is the flight control system, since its time constant is typically half of the total missile system time constant. Conventional autopilot design …
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Decentralized signal processing systems with conservation principles
… is developed with an emphasis on the system's stability, robustness, and variational properties. These systems are formed by connecting basic modules together via interconnecting networks. Several classes of systems are constructed using interconnecting networks that obey certain conservation …
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Constructive global analysis of hybrid systems
… typically cannot assess a priori the guaranteed stability, robustness, and performance properties of PLS designs. Rather, any such properties are inferred from extensive computer simulations. In other words, complete and systematic analysis and design methodologies have yet - emerge. In this …
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An investigation of turbogenerator dynamics and control
… options. Several other results concerning stability robustness to system uncertainties in different system configurations follow from the analysis in a transparent and immediate way.
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