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Novel Flexible Excitation System Based on MultilevelTopology Technology
Zhongguo dianli, 2019 Based on the development trend of the next generation power system, a novel flexible excitation system is designed based on three-level voltage source converter, and a matching five-level DC chopping circuit is proposed.
Kuayu WU +6 more
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Influence of equipment excitation on flexible carbody vibration of EMU [PDF]
Journal of Modern Transportation, 2014 To study the vibration transmission characteristics of a flexible carbody and its suspended equipment, a vertical mathematical model of high-speed electric multiple unit was established with equipment excitation considered. And the dynamic unbalance and impact turbulence excitation from equipment were taken into account in a single-stage and two-stage ...
Jinying Guo, Jing Zeng, Huailong Shi
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Linear Active Disturbance Rejection Control for Flexible Excitation System of Pumped Storage Units
EnergiesThe role of pumped storage in global energy structure transformation is becoming increasingly prominent. This article introduces a flexible excitation system based on fully controlled device converters into pumped storage units (PSUs). It can address the
Bo Zhao +6 more
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Zhejiang dianli, 2022 The transient forced excitation of the traditional excitation system used for synchronous condenser is limited and unmaintainable. A flexible excitation system can improve the crest value of transient forced excitation and maintain the forced excitation ...
WANG Longfei +5 more
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Applied Sciences, 2022 In this paper, the vortex-induced force characteristics of a flexible riser with buoyancy modules and strakes were experimentally investigated. The strain information caused by vortex-induced vibration (VIV) at different cross-sections on the flexible ...
Lusheng Jia +4 more
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Applied Sciences, 2021 Traditional modal testing has difficulty accurately identifying the ultralow-frequency modes of flexible structures. Ultralow-frequency excitation and vibration signal acquisition are two main obstacles.
Hui Qian +4 more
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Reciprocating excitation of a flexible beam: Benchmark study [PDF]
Mechanism and Machine Theory, 2006 Abstract A long and slender flexible beam is set in oscillatory motion to observe its deflection. A novel application of digital image processing is employed to obtain contactless discrete measurements of the beam tip deflection. We compare the measured data to those predicted by a flexible multibody dynamics simulation ( flxdyn ).
R.G. Langlois, M.J.D. Hayes
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Energies, 2021 The flexible excitation system (FES) is a kind of novel excitation system with two channels for damping control. Besides the basic functions of traditional excitation systems, flexible excitation systems can provide reactive power support for the ...
Yuwei Peng +5 more
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Mathematics, 2022 The online frequency estimation of forced harmonic vibrations on a building-like structure, using a nonlinear flexible vibration absorber in a cantilever beam configuration, is addressed in this article.
Francisco Beltran-Carbajal +5 more
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Bifurcation control of a flexible beam under principal parametric excitation [PDF]
Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000 A new approach is proposed in this paper for the nonlinear control of a flexible cantilever beam which is excited under a principal parametric vibration. The approach is based on a bifurcation control principle that combines linear and nonlinear feedback control strategies. A simplified nonlinear vibration model that accounts for the beam's flexibility
Lei Chen 0013 +3 more
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