Results 171 to 180 of about 984 (220)
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The brushless excitation system
Electrical Engineering, 1960A NEW TYPE of excitation system has been developed for use in the electric utility industry in which the generator collector and collector brushes, and the exciter commutator and commutator brushes are eliminated. The basic difference between this system and its predecessors is an a-c exciter mounted on the same shaft as the generator field.
R. W. Ferguson, R. Herbst, R. W. Miller
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Integrated brushless excitation for Hybrid Excitation Synchronous Generator
2015 IEEE Magnetics Conference (INTERMAG), 2015Brushless excitation generator is highly reliable and easily maintained.[1] In this paper, an integrated brushless excitated method (IBEM) is proposed in this paper. It can realize brushless excitation for the generator whose excitation windings are placed on the rotor.
S. Zhu, C. Liu, J. Tang, Y. Hu, X. Gan
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IEE Proceedings - Generation, Transmission and Distribution, 1994
The IEEE model of a brushless exciter can be found in many software packages for the simulation of power system behaviour. Yet the model is simplistic and does not represent the exciter alternator accurately. This paper describes the reasons for the inaccuracy of the IEEE representation and proposes an alternative model.
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The IEEE model of a brushless exciter can be found in many software packages for the simulation of power system behaviour. Yet the model is simplistic and does not represent the exciter alternator accurately. This paper describes the reasons for the inaccuracy of the IEEE representation and proposes an alternative model.
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Flux pump excited brushless alternator
IEEE Transactions on Magnetics, 1981Experimental measurements obtained for a novel brushless superconducting alternator that makes use of a flux pump of the rotating spot type are presented. The flux pump, used to provide the excitation current of the field coils incorporates several features of a machine studied theoretically and reported in an earlier paper.
A. Ferendeci +3 more
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Digital excitation system for a small brushless synchronous generator
Proceedings of the IECON'97 23rd International Conference on Industrial Electronics, Control, and Instrumentation (Cat. No.97CH36066), 2002Automatic voltage controllers for small size brushless synchronous generators have traditionally utilized analog electronics. Modern voltage control systems are beginning to utilize the power, flexibility, and cost advantages of microcomputer for control.
Erceg, Romina +2 more
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Studies on electrical stresses in rotating rectifiers for brushless exciter
The XIX International Conference on Electrical Machines - ICEM 2010, 2010This study aims to establish an alternative methodology for determination of the main transients on brushless exciters due to transients in the main generator armature. The method consists in calculating, from design data, the parameters of the equivalent circuits of the main generator and the exciter, followed by simulations, with the software PSIM ...
D. R. Gomes, I. E. Chabu
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BRUSHLESS EXCITATION SYSTEM ELECTROMAGNETIC DESIGN AND ANALYSES
Journal of Energy - Energija, 2022The brushless synchronous generator (SG) excitation system consists of a main exciter, a permanent magnet generator (PMG) of consequent rotor poles type, and an automatic voltage regulator (AVR). Both exciter machines have been properly designed and analysed.
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Brushless excitation systems for synchronous machines
Electronics and Power, 1975This article gives a simple approach to the various commonly used systems of brushless excitation for synchronous machines. The systems described have been designed for medium and large-size motors and generators of the salient-pole type operating at 50 or 60 ...
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Model development and validation of brushless exciters
2015 IEEE Eindhoven PowerTech, 2015This paper describes the process of performing site tests and model development of brushless exciters. Brushless exciters are often a source for model inaccuracy when studying synchronous machines and excitation system, which may lead to incorrect stabiliser design and poor performance.
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Excitation scheme of brushless self-excited-type three-phase synchronous machine
IEEE Transactions on Industry Applications, 1992AC excitation schemes of a brushless self-excited-type three-phase synchronous machine are presented. The rotor field windings of the machine are short circuited with the diodes, and an exciter or other exciting equipment is not required in this machine.
S. Nonaka, T. Kawaguchi
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