Search Results - "Nuij, P."

Higher-order sinusoidal input describing functions for the analysis of non-linear systems with harmonic responses by Nuij, P.W.J.M., Bosgra, O.H., Steinbuch, M.

“…For high-precision motion systems, modelling and control design specifically oriented at friction effects is instrumental. The sinusoidal input describing…”
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Frequency domain-based nonlinearity detection and compensation in Lur'e systems by Rijlaarsdam, D. J., Setiadi, A. C., Nuij, P. W. J. M., Schoukens, J., Steinbuch, M.

“…SUMMARYNonlinearities often lead to performance degradation in controlled dynamical systems. This paper provides a new, frequency domain‐based method, for…”
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Real-time wavelet detection of crashes in limit cycles of non-stationary fusion plasmas by van Berkel, M., Witvoet, G., de Baar, M.R., Nuij, P.W.J.M., ter Morsche, H.G., Steinbuch, M.

“…► We propose a new wavelet-based method for accurate and robust detection of limit cycle crashes in fusion plasmas. ► The method is optimized for real-time…”
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Experimental characterization of the stick/sliding transition in a precision mechanical system using the third order sinusoidal input describing function by Nuij, P.W.J.M., Steinbuch, M., Bosgra, O.H.

“…In this paper a new, non-parametric frequency domain based measurement technique is introduced that enables capturing the stick to gross sliding transition of…”
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A closed-loop control system for stabilization of MHD events on TEXTOR by Hennen, B.A., Westerhof, E., Oosterbeek, J.W., Nuij, P.W.J.M., De Lazzari, D., Spakman, G.W., de Baar, M., Steinbuch, M.

“…This paper presents an integrated installation that facilitates closed-loop control of magnetohydrodynamic (MHD) events in a tokamak by means of electron…”
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Real-time period determination for relaxation oscillators using wavelets by van Berkel, M., Witvoet, G., de Baar, M. R., Nuij, P. W. J. M., ter Morsche, H. G., Steinbuch, M.

“…In this article an algorithm for optimized realtime sensing of crashes for control purposes is presented. The algorithm is based on time-scale wavelet theory…”
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Utilization of collinear ECE detection/ECRH heating for active stabilization of plasma instabilities by Bongers, W A, Kasparek, W, Donné, A J H, Goede, A P H, de Baar, M R, Schüller, F C, Erckmann, V, Stober, J, Westerhof, E, Amerongen, F J, Hennen, B A, Nuij, P W J M, Oosterbeek, J W, Ronden, D M S, Thoen, D J, Tongerlo, T, Wagner, D

“…Experiments on TEXTOR have successfully demonstrated the proof of principle of using Electron Cyclotron Emission (ECE) measured along the Electron Cyclotron…”
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Bias Removal in Higher Order Sinusoidal Input Describing Functions by Nuij, P., Steinbuch, M., Bosgra, O.

“…In this paper a novel method is presented for the reduction of bias caused by harmonic excitation in the identification of higher order sinusoidal input…”
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Hierarchical control for drift correction in transmission electron microscopes by Tarau, A. N., Nuij, P., Steinbuch, M.

“…Electron microscopes are important tools for material science research since they can reveal accurate images (down to the atomic level) for a wide range of…”
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Identification of non-linear dynamics using higher order frequency response functions by Nuij, P., Steinbuch, M.

“…An experiment is designed to identify input-output relations of a mechanical positioning system with excitation amplitude dependent mechanical behavior. When…”
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Control of sawteeth and neo-classical tearing modes in tokamaks using electron cyclotron waves by de Baar, M. R., Bongers, W. A., van Berkel, M., Doelman, N. J., Hennen, B. A., Nuij, P., Oosterbeek, J. W., Steinbuch, M., Westerhof, E., Witvoet, G.

“…Resistive magneto-hydrodynamic instabilities are expected to limit the performance of nuclear fusion reactors. Prime examples are the sawtooth instability and…”
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ECE system on ASDEX-upgrade placed inline at the high power waveguide based transmission system by Bongers, W.A., Goede, A.P.H., Westerhof, E., Oosterbeek, J.W., Doelman, N.J., Schuller, F.C., de Baar, M.R., Amerongen, F.J., Hennen, B.A., Kasparek, W., Nuij, P.W.J.M., Thoen, D.J., Wagner, D., Stober, J., Steinbuch, M.

“…It is proposed to provide the Electron Cyclotron Emission (ECE) feedback signal for MHD control experiments along the ECRH line-of sight. Experiments on TEXTOR…”
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