scholarly journals Macromodeling of Multiport Systems Using a Fast Implementation of the Vector Fitting Method

2008 ◽  
Vol 18 (6) ◽  
pp. 383-385 ◽  
Author(s):  
D. Deschrijver ◽  
M. Mrozowski ◽  
T. Dhaene ◽  
D. De Zutter
Keyword(s):  
Vector Fitting ◽  
Fast Implementation ◽  
Fitting Method

Modelling of the wide frequency equivalent circuit of the three-phase AC motor based on vector fitting method

2019 ◽  
Vol 11 (1) ◽  
pp. 12
Author(s):  
hui Li ◽  
Wen He ◽  
Yingcong Wang ◽  
Xu Li
Keyword(s):  
Equivalent Circuit ◽  
Vector Fitting ◽  
Ac Motor ◽  
Fitting Method ◽  
Three Phase

scholarly journals Simulation Analysis of Current in Metal Sheath of Power Cable Considering Temperature Characteristics

2021 ◽  
Vol 2108 (1) ◽  
pp. 012015
Author(s):  
Jian Fang ◽  
Min Zhang ◽  
Wenxiong Mo ◽  
Bo Huang ◽  
Jiaxing He ◽  
...  
Keyword(s):  
Simulation Analysis ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Temperature Data ◽  
Power Cable ◽  
Temperature Characteristics ◽  
Vector Fitting ◽  
Fitting Method ◽  
Operating Current ◽  
Metal Sheath

Abstract This paper proposes a cable broadband circuit model considering the temperature characteristics. This paper establishes the equivalent circuit model of the cross-bonded power cable and proposes the broadband parameter calculation method considering the temperature. The cable parameters are calculated by the vector fitting method. Based on the operating current and cable temperature data of the cable on a certain day, the simulation analysis of the cable sheath current considering the temperature is carried out using Simulink. Finally, the simulation results show that the cable sheath current is significantly affected by temperature.

Frequency Response-Based Uncertainty Analysis of Vibration System Utilizing Multiple Response Gaussian Process

2019 ◽  
Vol 141 (5) ◽  
Author(s):  
Wangbai Pan ◽  
Guoan Tang ◽  
Jiong Tang
Keyword(s):  
Uncertainty Analysis ◽  
Gaussian Process ◽  
Frequency Response ◽  
Model Updating ◽  
Uncertainty Propagation ◽  
Multiple Response ◽  
Vibration System ◽  
Vector Fitting ◽  
Fitting Method ◽  
Small Set

This research concerns the uncertainty analysis and quantification of the vibration system utilizing the frequency response function (FRF) representation with statistical metamodeling. Different from previous statistical metamodels that are built for individual frequency points, in this research we take advantage of the inherent correlation of FRF values at different frequency points and resort to the multiple response Gaussian process (MRGP) approach. To enable the analysis, vector fitting method is adopted to represent an FRF using a reduced set of parameters with high accuracy. Owing to the efficiency and accuracy of the statistical metamodel with a small set of parameters, Bayesian inference can then be incorporated to realize model updating and uncertainty identification as new measurement/evidence is acquired. The MRGP metamodel developed under this new framework can be used effectively for two-way uncertainty propagation analysis, i.e., FRF prediction and uncertainty identification. Case studies are conducted for illustration and verification.

The Spatial Linkage Analysis and Synthesis of the Vector Fitting Method

2012 ◽  
Vol 268-270 ◽  
pp. 1231-1238
Author(s):  
You Liang Xu
Keyword(s):  
Linkage Analysis ◽  
Unit Vector ◽  
New Method ◽  
Analysis And Design ◽  
Vector Fitting ◽  
The Core ◽  
Design Variables ◽  
Fitting Method ◽  
Analysis And Synthesis ◽  
Core Idea

Put forward a new method of spatial linkage analysis and synthesis of the vector fitting. The core idea is: all components available in mechanisms can be represent by one or one group of vectors, all vectors are transformed from unit vector, and the mechanism is a assemblage of those vectors. Because of kinematic variables (position, direction, changing when moving ) and design variables (shape, size, unchanging when moving ) is been properly separated which can improve the efficiency of analysis and calculation. The example shows that the method is efficient, and can be used both in the analysis and design of the mechanism.

Sign in / Sign up

Export Citation Format

Share Document