Results 251 to 260 of about 265,602 (329)
Resonant core-shell magnetoelectric nanoparticles as sensors of neural magnetic activity: a computational study. [PDF]
Caiani G +3 more
europepmc +1 more source
Broadband ultrafast self-heterodyned chiro-optical spectroscopy
Cerullo G +14 more
europepmc +1 more source
Brushless rotating exciter conversion to main field static exciter system
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
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Variable structure power stabiliser to supplement static-excitation systems
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
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Design of static self shunt excitation system for giant hydro generator
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
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Stabilization via parametric excitation of multi-dof statically unstable systems
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Inga M. Arkhipova, Angelo Luongo
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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
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Alternate solutions to replacing aged static exciter systems
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
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