Results 81 to 90 of about 19,549,251 (206)

MATHICSE Technical Report : A technique for non-intrusive greedy piecewise-rational model reduction of frequency response problems over wide frequency bands [PDF]

In the field of model order reduction for frequency response problems, the minimal rational interpolation (MRI) method has been shown to be quite effective.
Nobile, Fabio, Pradovera, Davide
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A Method for the Assignment of Zeros Using Frequency Response Functions

Journal of Vibration Engineering & Technologies
PurposeIn many engineering structures, undesirable harmonics can occur due to changes in operating conditions. The effects of these unwanted harmonics can be eliminated by assigning the zeros of point or cross Frequency Response Functions (FRFs) of the structure to the frequencies of the unwanted harmonics.
openaire   +1 more source

A rational interpolation method to compute frequency response [PDF]

, 1993
A rational interpolation method for approximating a frequency response is presented. The method is based on a product formulation of finite differences, thereby avoiding the numerical problems incurred by near-equal-valued subtraction.
Kenney, Charles, Stubberud, Stephen, Laub, Alan J.   +2 more
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Improved Bayesian Model Updating Method for Frequency Response Function with Metrics Utilizing NHBFT-PCA

Mathematics
To establish a high-fidelity model of engineering structures, this paper introduces an improved Bayesian model updating method for stochastic dynamic models based on frequency response functions (FRFs).
Jinhui Li, Zhenhong Deng, Yong Tang, Siqi Wang, Zhe Yang, Huageng Luo, Wujun Feng, Baoqiang Zhang   +7 more
doaj   +1 more source

Parameter Estimation Method for Virtual Power Plant Frequency Response Model Based on SLP

Energies
In adapting to the double-high development trend of high-voltage direct current (HVDC) receiving-end power systems and solving optimization problems in emergency frequency control (EFC) supporting virtual power plants (VPPs) in large-scale power systems,
Zheng Shi, Haixiao Zhu, Haibo Zhao, Peng Wang, Yan Liang, Kaikai Wang, Jie Chen, Xiaoming Zheng, Hongli Liu   +8 more
doaj   +1 more source

A new method for the model reduction technique via a limited frequency interval impulse response Gramian

, 2012
A newly proposed method of frequency-weighted model reduction for single-input–single-output (SISO) linear continuous-time systems is proposed. It is based on matching the elements of the limited frequency interval impulse response Gramian (IRG).
Sahlan, Shafishuhaza, Sreeram, Victor, Ghafoor, Abdul   +2 more
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Forced response of shrouded blades with a coupled static/dynamic approach [PDF]

, 2011
A coupled static-dynamic method is proposed and applied to bladed disks with shrouds, in order to calculate the nonlinear forced response in presence of friction damping in the frequency domain.
Zucca, Stefano, Gulisano, Andrea, Firrone, Christian Maria   +2 more
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A machine learning-based load shedding method for improving resilience of power system

AIP Advances
Modern power systems require fast and effective load shedding to maintain frequency stability and enhance resilience, especially during disturbances. Traditional load shedding methods suffer from several shortcomings, including slow computational time ...
Di Zhang, Ji Han, Longjie Xie, Bohui Jia, Chenxia Wang, Huichen Liu, Chenghao Li, Qionglin Li   +7 more
doaj   +1 more source

Distribution Feeder Fault Detection Method Considering Transient Frequency Response of Distributed Power Supply

IET Smart Grid
Single‐phase ground faults can occur in distribution networks, which bring harm to the safe operation of distribution networks. With the continuous development of new energy technology, distributed power supply is also accessed to the distribution ...
Zhongqiang Zhou, Yixin Xia, Yuan Wen, Zhi Zhou, Moujun Deng, Xiang Liao, Jupeng Zeng   +6 more
doaj   +1 more source

Small-signal power measuring technique for measuring the frequency response of electroabsorption modulators

, 2006
We propose and demonstrate measurement of the frequency response of an electroabsorption (EA) modulator using an extended small-signal power measuring technique.
Liu, Y (Liu, Y.), Zhu, NH (Zhu, N. H.), Wang, X (Wang, X.), Chung, PS (Chung, P. S.), Pun, EYB (Pun, E. Y. B.), Hasen, QQG (Hasen, Q. Q. G.), Huang, HP (Huang, H. P.)   +6 more
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