Gilead Tadmor | Northeastern University (original) (raw)

Gilead Tadmor

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Papers by Gilead Tadmor

Research paper thumbnail of Closed-loop Lagrangian separation control in a bluff body shear flow model

Research paper thumbnail of MODEL-BASED COHERENT-STRUCTURE CONTROL OF TURBULENT SHEAR FLOWS USING LOW-DIMENSIONAL VORTEX MODELS

Research paper thumbnail of Feedback shear layer control for bluff body drag reduction

Journal of Fluid Mechanics, 2008

Research paper thumbnail of MODEL-BASED CONTROL OF VORTEX SHEDDING USING LOW-DIMENSIONAL GALERKIN MODELS

Research paper thumbnail of A hierarchy of low-dimensional models for the transient and post-transient cylinder wake

Journal of Fluid Mechanics, 2003

Research paper thumbnail of Optimal mixing in recirculation zones

Research paper thumbnail of The standard H∞ problem in systems with a single input delay

IEEE Transactions on Automatic Control, 2000

The standard H∞ problem is solved for LTI systems with a single, pure input lag. The solution is ... more The standard H∞ problem is solved for LTI systems with a single, pure input lag. The solution is based on state-space analysis, mixing a finite-dimensional and an abstract evolution model. Utilizing the relatively simple structure of these distributed systems, the associated operator Riccati equations are reduced to a combination of two algebraic Riccati equations and one differential Riccati equation over

Research paper thumbnail of H∞ control in systems with a single input delay

A state space solution is provided for the standard H∞ problem in a linear systems with a single,... more A state space solution is provided for the standard H∞ problem in a linear systems with a single, pure input lag. The solution is based on a reduction of associated operator Riccati equations to a algebraic and differential matrix Riccati equations

Research paper thumbnail of On robust control analysis and design for load frequency regulation

IEEE Transactions on Power Systems, 1998

Research paper thumbnail of Dissipativity as a unifying control design framework for suppression of low frequency oscillations in power systems

IEEE Transactions on Power Systems, 1999

Research paper thumbnail of Design and implementation of an adaptive controller for torque ripple minimization in PM synchronous motors

IEEE Transactions on Power Electronics, 2000

Research paper thumbnail of Low torque ripple control of current-fed switched reluctance motors

The paper addresses a basic control issue in switched reluctance motor (SRM) drives-the productio... more The paper addresses a basic control issue in switched reluctance motor (SRM) drives-the production of ripple-free torque. Simple and largely model-independent conventional switching patterns are not able to satisfy this requirement. Our goal is to improve SRM dynamical performance by compensating for motor nonlinearities while maintaining the robustness of conventional methods in a simple position and current feedback. Our method is based on a complete parametrization of position dependent voltage and current profiles in ripple free operation and waveform optimization to minimize power supply requirements. We allow for model uncertainties and show that our strategy consistently outperforms the conventional policy. Experimental data verifying the analytical approach are included, and implications for self-tuning and shaft sensorless operation are outlined

Research paper thumbnail of Design of robust controllers for resonant DC/DC converters

This paper pursues a quantitative feedback theory (QFT) approach to robust controller design for ... more This paper pursues a quantitative feedback theory (QFT) approach to robust controller design for series resonant DC/DC converters. The model is derived using the generalized averaging procedure and the design approach explicitly reveals the tradeoffs involved in the controller synthesis. A nonlinear model is used to verify the performance of the compensator under several load transients

Research paper thumbnail of Adaptive torque-ripple minimization in switched reluctance motors

IEEE Transactions on Industrial Electronics, 2001

Research paper thumbnail of Towards a dissipativity framework for power system stabilizer design

IEEE Transactions on Power Systems, 1996

Research paper thumbnail of On torque ripple reduction in current-fed switched reluctance motors

IEEE Transactions on Industrial Electronics, 1999

Research paper thumbnail of Closed-loop Lagrangian separation control in a bluff body shear flow model

Research paper thumbnail of MODEL-BASED COHERENT-STRUCTURE CONTROL OF TURBULENT SHEAR FLOWS USING LOW-DIMENSIONAL VORTEX MODELS

Research paper thumbnail of Feedback shear layer control for bluff body drag reduction

Journal of Fluid Mechanics, 2008

Research paper thumbnail of MODEL-BASED CONTROL OF VORTEX SHEDDING USING LOW-DIMENSIONAL GALERKIN MODELS

Research paper thumbnail of A hierarchy of low-dimensional models for the transient and post-transient cylinder wake

Journal of Fluid Mechanics, 2003

Research paper thumbnail of Optimal mixing in recirculation zones

Research paper thumbnail of The standard H∞ problem in systems with a single input delay

IEEE Transactions on Automatic Control, 2000

The standard H∞ problem is solved for LTI systems with a single, pure input lag. The solution is ... more The standard H∞ problem is solved for LTI systems with a single, pure input lag. The solution is based on state-space analysis, mixing a finite-dimensional and an abstract evolution model. Utilizing the relatively simple structure of these distributed systems, the associated operator Riccati equations are reduced to a combination of two algebraic Riccati equations and one differential Riccati equation over

Research paper thumbnail of H∞ control in systems with a single input delay

A state space solution is provided for the standard H∞ problem in a linear systems with a single,... more A state space solution is provided for the standard H∞ problem in a linear systems with a single, pure input lag. The solution is based on a reduction of associated operator Riccati equations to a algebraic and differential matrix Riccati equations

Research paper thumbnail of On robust control analysis and design for load frequency regulation

IEEE Transactions on Power Systems, 1998

Research paper thumbnail of Dissipativity as a unifying control design framework for suppression of low frequency oscillations in power systems

IEEE Transactions on Power Systems, 1999

Research paper thumbnail of Design and implementation of an adaptive controller for torque ripple minimization in PM synchronous motors

IEEE Transactions on Power Electronics, 2000

Research paper thumbnail of Low torque ripple control of current-fed switched reluctance motors

The paper addresses a basic control issue in switched reluctance motor (SRM) drives-the productio... more The paper addresses a basic control issue in switched reluctance motor (SRM) drives-the production of ripple-free torque. Simple and largely model-independent conventional switching patterns are not able to satisfy this requirement. Our goal is to improve SRM dynamical performance by compensating for motor nonlinearities while maintaining the robustness of conventional methods in a simple position and current feedback. Our method is based on a complete parametrization of position dependent voltage and current profiles in ripple free operation and waveform optimization to minimize power supply requirements. We allow for model uncertainties and show that our strategy consistently outperforms the conventional policy. Experimental data verifying the analytical approach are included, and implications for self-tuning and shaft sensorless operation are outlined

Research paper thumbnail of Design of robust controllers for resonant DC/DC converters

This paper pursues a quantitative feedback theory (QFT) approach to robust controller design for ... more This paper pursues a quantitative feedback theory (QFT) approach to robust controller design for series resonant DC/DC converters. The model is derived using the generalized averaging procedure and the design approach explicitly reveals the tradeoffs involved in the controller synthesis. A nonlinear model is used to verify the performance of the compensator under several load transients

Research paper thumbnail of Adaptive torque-ripple minimization in switched reluctance motors

IEEE Transactions on Industrial Electronics, 2001

Research paper thumbnail of Towards a dissipativity framework for power system stabilizer design

IEEE Transactions on Power Systems, 1996

Research paper thumbnail of On torque ripple reduction in current-fed switched reluctance motors

IEEE Transactions on Industrial Electronics, 1999

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