Results 251 to 260 of about 265,602 (329)

Broadband ultrafast self-heterodyned chiro-optical spectroscopy

open access: yes
Cerullo G   +14 more
europepmc   +1 more source

Brushless rotating exciter conversion to main field static exciter system

open access: closedConference Record of 2013 Annual IEEE Pulp and Paper Industry Technical Conference (PPIC), 2013
In the 1960s, many generator manufacturers began providing large scale brushless rotating exciters for use on a variety of turbine generator applications. The brushless exciters became increasingly popular in the 1970s through the present. Prior to brushless excited generators, rotating exciters were all rotating brush type which required brushes and ...
R.C. Schaefer
openalex   +2 more sources

Variable structure power stabiliser to supplement static-excitation systems

open access: closedProceedings of the Institution of Electrical Engineers, 1976
One of the weaknesses of the small-perturbation theory when applied to power-system stability is that the system differential equations must be linearised with respect to an operating point since they are fundamentally nonlinear. One of the most prominent nonlinear effects is due directly to the loading condition, that is the real and reactive power ...
Y.L. Abdel-Magid, G.W. Swift
openalex   +2 more sources

Design of static self shunt excitation system for giant hydro generator

open access: closed2013 1st International Future Energy Electronics Conference (IFEEC), 2013
In this paper the characteristics of the static self shunt excitation system for giant hydro generator are introduced. Each component is analyzed on what should be addressed in the design, including the automatic voltage regulator, the silicon-controlled rectifier (SCR) cabinet, the de-excitation control and rotor overvoltage protection circuit and the
Qipin Xu   +3 more
openalex   +2 more sources

Stabilization via parametric excitation of multi-dof statically unstable systems

open access: closedCommunications in Nonlinear Science and Numerical Simulation, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Inga M. Arkhipova, Angelo Luongo
openalex   +2 more sources

Decentralized Adaptive Digital Control for Multi-machine Excitation Systems with Static Var Compensator

open access: closed2020 5th International Conference on Advanced Robotics and Mechatronics (ICARM), 2020
In this paper, a decentralized discrete adaptive quantized control (DDQC) method has been proposed for multi-machine excitation system (MES) with static var compensator (SVC). The mathematical model of the power system is studied in discrete-time form, the digital control scheme is realized by using the improved hysteresis quantizer, which can ...
Guoqiang Zhu   +5 more
openalex   +2 more sources

Alternate solutions to replacing aged static exciter systems

open access: closedConference Record of 2008 54th Annual Pulp and Paper Industry Technical Conference, 2008
Over the years, many rotating exciters have been replaced for static exciters on synchronous machines. As these replacement static exciters age, much of the analog hardware becomes obsolete and can no longer be supported by the manufacturer, again forcing the replacement of the entire excitation system.
R.C. Schaefer, T.W. Eberly
openalex   +2 more sources

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