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Characterization of Statistically Forced Oscillations : A Spectral Proper Orthogonal Decomposition Approach 25

Characterization of Statistically Forced Oscillations : A Sp...

引用

25th Autumn Meeting on Power, Electronics and Computing, ROPEC 2023

作者： Murillo-Aguirre, Erlan R. Roman-Messina, A. Cinvestav Ipn Graduate Studies Program in Electrical Engineering Guadalajara Mexico

ISBN: (纸本)9798350336887

In this paper, a method for statistical analysis is developed to estimate patterns of behavior and their amplification from the observed system response to random variations. Spectral proper orthogonal decomposition (SPOD) is utilized to examine gains and phase relationships between signals from simulated data. Based on frequency domain and Fourier analysis, SPOD is employed to decompose forced oscillations into a set of space-time orthogonal modes. By such an approach, the ability of Fourier analysis to study stochastically forced oscillations in complex power system models is improved. Analytical criteria for describing the energy relationships in the observed oscillations are derived, and a physical interpretation of the stochastic modes is suggested. The methodology is demonstrated using simulated random oscillations of a realistic test power system. © 2023 IEEE.

关键词： Fourier analysis

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Rational Approximation of a Three-Phase Photovoltaic System via TD-VF and NL-VF

Rational Approximation of a Three-Phase Photovoltaic System ...

引用

2023 IEEE Texas Power and Energy Conference, TPEC 2023

作者： Tamayo, Jose E. Ramirez, Abner Ramirez, Juan M. Graduate Studies Program in Electrical Engineering CINVESTAV IPN Guadalajara Mexico

ISBN: (纸本)9781665490719

This paper presents the rational approximation of a three-phase photovoltaic (PV) system via the time-domain vector fitting (TD-VF) and nonlinear vector fitting (NL-VF) techniques. A significant feature of both methods is that the transfer function is unknown, and input/output variables are sufficient data for the transfer function's dynamics characterization. The accuracy and robustness of both techniques are compared via an example. It is shown that NL-VF is an effective alternative to TD-VF for rationally identifying a system with nonlinear components, such as a PV generator. © 2023 IEEE.

关键词： Transfer functions

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Analyzing the Performance of Radial-Flux Permanent Magnet Synchronous Generators with Different Winding Designs for Applications in Wind Turbines

Analyzing the Performance of Radial-Flux Permanent Magnet Sy...

引用

2024 International Conference on electrical Machines, ICEM 2024

作者： Iracheta-Cortez, R. Vazquez, E. Durante-Gomez, W. CONAHCYT-Universidad del Istmo Posgraduate Studies Division Oaxaca Tehuantepec Mexico FIME-UANL Electrical Engineering Graduate Program Nuevo León Monterrey Mexico UNAM Electrical Engineering Graduate Program Ciudad de México Mexico

ISBN: (纸本)9798350370607

In this paper is analyzed the effect of winding type on the performance of three-phase radial-flux permanent magnet synchronous generators for applications in wind turbines. The winding types considered for designing these generators are the concentric, integer and distributed windings. Moreover, a generator virtual prototype is obtained from each winding in software CAD. Then, each virtual prototype is simulated through 2D and 3D finite element analysis of each winding type to test performance variables such as the copper mass, losses, the power quality and, cogging and ripple torques. Finally, the performance results for these generator designs are shown in a comparative table and also, the main winding features are described for the purpose of being used in wind turbines. © 2024 IEEE.

关键词： Permanent magnets

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An energy ratio approach to the analysis of forced oscillations in power grids

An energy ratio approach to the analysis of forced oscillati...

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2022 North American Power Symposium, NAPS 2022

作者： Aguirre, Erlan R. M. Messina, Arturo R. Cinvestav Ipn Graduate Studies Program in Electrical Engineering Guadalajara Mexico

ISBN: (纸本)9781665499217

In this paper, a new framework based on non-modal stability theory to study the forced system response to harmonic excitation. Using this approach, the amplification of forced oscillation can be studied as a function of system location and excitation frequency. As a by-product, the technique enables comparing the output and the input sizes and is not limited to modal frequencies. In addition, the forcing and response modes give the dominant behavior of the forced oscillations. Applications to a two-area, four-machine test system are used to assess the applicability of the proposed framework. © 2022 IEEE.

关键词： and input modes energy ratio Forced oscillations output modes principal gains

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Rational Approximation of a Three-Phase Photovoltaic System via TD-VF and NL-VF

Rational Approximation of a Three-Phase Photovoltaic System ...

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IEEE Texas Power and Energy Conference (TPEC)

作者： Jose E. Tamayo Abner Ramirez Juan M. Ramirez Graduate Studies Program in Electrical Engineering CINVESTAV IPN Guadalajara Mexico

关键词： Photovoltaic systems Convolution Frequency-domain analysis Fitting Transfer functions Generators Robustness

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Characterization of Statistically Forced Oscillations : A Spectral Proper Orthogonal Decomposition Approach

Characterization of Statistically Forced Oscillations : A Sp...

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IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)

作者： Erlan R. Murillo-Aguirre A. Román-Messina Graduate Studies Program in Electrical Engineering Cinvestav IPN Guadalajara Mexico

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Mapping the Optimal Sites for Offshore Wind Power Plants and Green Hydrogen Production: South and Southeast Brazilian Case Study 32

Mapping the Optimal Sites for Offshore Wind Power Plants and...

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32nd IEEE International Symposium on Industrial Electronics, ISIE 2023

作者： Paula, Karen De Pumalloclla, Hayro Pourakbari-Kasmaei, Mahdi Melo, Joel D. Falcao, Djalma Federal University of ABC Graduate Program in Energy Santo André Brazil Aalto University Dept. Electrical Engineering and Automation Espoo Finland Alberto Luiz Coimbra Institute for Graduate Studies and Engineering Research Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9798350399714

The demand for renewable energy solutions has become a global trend due to the current climate change scenario and the increased demand for electricity. Hence, in several countries, the share of renewable sources in the electric matrix has grown with the insertion of new energy sources, such as offshore wind. Brazil presents optimal conditions for the construction of offshore wind farms. The Brazilian 10-year Energy Expansion Plan 2029, in addition to placing this source as an expansion for the coming years, intensely focuses on hydrogen. For this reason, this study aims to assist planners and agents interested in running new construction projects of offshore wind farms with green hydrogen production. Such a study case seeks better use of the available wind resources in the high energy consumption regions of Brazil's South and Southeast, assessing the wind resource considering technical, environmental, social, and economic restrictions to identify the best locations for installing wind farms. As such, it processes the data within a geographic information system, and then a fuzzy logic-based model is used for the joint evaluation of constraints. Results show that Rio de Janeiro and Espírito Santo are the most favorable places. © 2023 IEEE.

关键词： Offshore wind farms

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Vehicle Wheel Hub Recognition Method Based on HOG Feature Extraction and SVM Classifier 14

Vehicle Wheel Hub Recognition Method Based on HOG Feature Ex...

引用

14th International Conference on Information Technology and electrical engineering, ICITEE 2022

作者： Wang, Bin Juanatas, Ronaldo Niguidula, Jasmin Anhui Technical College of Mechanical and Electrical Engineering Internet and Communications Department Wuhu China Technological University of the Philippines Graduate Program and External Studies Manila Philippines

ISBN: (数字)9781665460774

ISBN: (纸本)9781665460774

In order to avoid the problems of low accuracy of wheel hub recognition and classification and excessive dependence on template image quality in the process of automatic production of the automobile wheel hub, a vehicle wheel hub recognition method based on Histogram of Oriented Gradient (HOG) and Support Vector Machine (SVM) is proposed. Firstly, the wheel hub images under three different lighting conditions are collected, and the wheel hub images are processed in grayscale;Secondly, the positive and negative samples are made, and hog features are extracted, respectively;Finally, the extracted hog features are trained by SVM classifier, and the trained target classifier is used to recognize the wheel hub photos under three different lighting conditions. The experimental results show that this method has higher recognition accuracy than the traditional template matching method under different lighting conditions. © 2022 IEEE.

关键词： Support vector machines

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Analyzing the Performance of Radial-Flux Permanent Magnet Synchronous Generators with Different Winding Designs for Applications in Wind Turbines

Analyzing the Performance of Radial-Flux Permanent Magnet Sy...

引用

International Conference on electrical Machines, ICEM

作者： R. Iracheta-Cortez E. Vázquez W. Durante-Gómez Posgraduate Studies Division CONAHCYT-Universidad del Istmo Tehuantepec Oaxaca México Electrical Engineering Graduate Program FIME-UANL Monterrey Nuevo León México Electrical Engineering Graduate Program UNAM Ciudad de México México

ISBN: (数字)9798350370607

ISBN: (纸本)9798350370614

关键词： Solid modeling Analytical models Three-dimensional displays Voltage measurement Torque Computational modeling Windings Generators Permanent magnets Wind turbines

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An energy ratio approach to the analysis of forced oscillations in power grids

An energy ratio approach to the analysis of forced oscillati...

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Annual North-American Power Symposium

作者： Erlan R. M. Aguirre Arturo R. Messina Graduate Studies Program in Electrical Engineering Cinvestav IPN Guadalajara Mexico

ISBN: (纸本)9781665499224

关键词： Shape Power system stability Power system harmonics Harmonic analysis Power grids Stability analysis Behavioral sciences

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