- document
-
Homborg, A.M. (author), van Westing, E.P.M. (author), Tinga, T. (author), Ferrari, G.M. (author), Zhang, X. (author), de Wit, J.H.W. (author), Mol, J.M.C. (author)This study validates the ability of Hilbert spectra to investigate transients in an electrochemical noise signal for an aqueous corrosion inhibition process. The proposed analysis procedure involves the identification and analysis of transients in the electrochemical current noise signal. Their decomposition into instantaneous frequencies in a...article 2014
- document
-
Nicolai, H.T. (author), Hof, A. (author), Oosthoek, J.L.M. (author), Blom, P.W.M. (author)The charge transport in blue light-emitting polyspirobifluorene is investigated by both steady-state current-voltage measurements and transient electroluminescence. Both measurement techniques yield consistent results and show that the hole transport is space-charge limited. The electron current is found to be governed by a high intrinsic...article 2011
- document
-
Asadi, K. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author)Staggered bottom-contact top-gate organic ferroelectric field-effect transistors are fabricated with poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) as ferroelectric gate and poly[bis(4-phenyl)(2,4,6- trimethylphenyl)amine] as semiconductor. Polarization reversal of the ferroelectric gate is monitored by displacement transients in the...article 2011
- document
-
Heskes, P.J.M. (author), Myrzik, J.M.A. (author), Kling, W.L. (author)This paper proposes a solution for the minimization of the impact of resonances due to parallel capacitances in the grid. This solution is a combination of two additional (ancillary) services of power electronics converters, namely Virtual Parallel Capacitance Reduction (VPCR) and Virtual Resistive Harmonic Damping (VRHD). VPCR is an ancillary...conference paper 2011
- document
-
Heskes, P.J.M. (author), Myrzik, J.M.A. (author), Kling, W.L. (author)This paper focuses on two power quality effects that are noticed with power electronic appliances. One effect is a harmonic oscillation by inverters of photo voltaic systems because they bring a high parallel capacitance to the grid and negative output impedance. The other effect is a sub-harmonic oscillation due to the negative differential...conference paper 2010
- document
-
TNO Informatie- en Communicatietechnologie (author), Heskes, P.J.M. (author), Myrzik, J.M.A. (author), Kling, W.L. (author)This paper describes the development of a Complex Harmonic Impedance Measurement system, called the CHIME-system. This system performs on-line impedance measurements in the electricity grid and will be designed for implementation in Digital Signal Processor (DSP) control systems of grid-connected electronic power converters, like photovoltaic...article 2009
- document
-
Energieonderzoek Centrum Nederland (author), Machielse, L.A.H. (author)-report 2001