Impedance Modeling and Interaction Stability Analysis of Grid-Connected Voltage Source Converter Considering Multiple Frequency Coupling Factors

Shi, Jinzhu; Yang, Lihui; Zhu, Meiting

doi:10.1109/cieec50170.2021.9510223

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…In (5), the function F is implemented using a deep convolutional neural network (CNN). Since the goal of the CNN here is to generate high-frequency signals rather than classification, it is necessary to design a neural network that can capture the timing relationships of the data and satisfy the properties of the super-resolution metrology problem.…”

Section: Super Resolution Measurementmentioning

confidence: 99%

“…At present, oscillation localization methods can be divided into three categories: an analytical calculation method, a numerical analysis method and a data-driven method. The analytical calculation method mainly includes the complex torque coefficient method [3], the state-space method [4] and the impedance method [5], which can accurately reflect the relationship between the oscillation characteristics and the influencing factors. The numerical analysis method mainly solves the power system mathematical model from the perspective of an electromechanical transient or electromagnetic transient, in which the energy method is representative of this method [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Intelligent Location Method for Power System Oscillation Sources Based on a Digital Twin

Yang,

Wang,

Gao

et al. 2023

Electronics

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Aiming at the difficult problem of broadband oscillation localization in power systems, the intelligent localization method of an oscillation source based on a digital twin is proposed, and the oscillation source localization system is thus constructed. Firstly, a digital twin-based oscillation source localization method and its system architecture are proposed. Furthermore, an intelligent positioning method of the oscillation source, based on data-driven and mechanism fusion, is proposed. It includes three steps: oscillation signal preprocessing, oscillation modal analysis and oscillation source localization. For the oscillation signal preprocessing, the generative adversarial imputation network is used to repair the missing samples, and the super-resolution technique is used to realize the super-resolution measurement of broadband oscillation. In the oscillation modal analysis, the spectrum of the oscillation signal is extracted using the fast Fourier transform. To accurately locate the oscillation source, branch potential energy is used as the input to the data-driven model, such as LSTM and CNN. Finally, an oscillation source localization system is developed based on the digital twin workshop CloudPSS-XStudio, which can locate the oscillation source quickly and accurately.

show abstract

Section: Super Resolution Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Intelligent Location Method for Power System Oscillation Sources Based on a Digital Twin

Yang,

Wang,

Gao

et al. 2023

Electronics

View full text Add to dashboard Cite

show abstract

Intelligent Location Method and System for Power System Oscillation Sources Based on Digital Twin

Yang¹,

Wang²,

Gao³

et al. 2023

Preprint

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Aiming at the difficult problem of broadband oscillation localization in power systems, the intel-ligent localization method of oscillation source based on the digital twin is proposed and the os-cillation source localization system based on the digital twin is constructed. Firstly, a digital twin-based oscillation source localization method and system architecture are proposed. Fur-thermore, an intelligent positioning method of oscillation source based on data-driven and mechanism fusion is proposed. It includes three steps: oscillation signal preprocessing, oscillation modal analysis and oscillation source localization. For the oscillation signal preprocessing, the generative adversarial imputation network is used to repair the missing samples, and the su-per-resolution technique is used to realize the super-resolution measurement of broadband os-cillation. In the oscillation modal analysis, the spectrum of the oscillation signal is extracted using the fast Fourier transform. To accurately locate the oscillation source, the branch potential energy is used as input to the data-driven model, such as LSTM and CNN. Finally, an oscillation source localization system is developed based on the digital twin workshop CloudPSS-XStudio, which can locate the oscillation source quickly and accurately.

show abstract

Impedance Modeling and Interaction Stability Analysis of Grid-Connected Voltage Source Converter Considering Multiple Frequency Coupling Factors

Cited by 2 publications

References 13 publications

An Intelligent Location Method for Power System Oscillation Sources Based on a Digital Twin

An Intelligent Location Method for Power System Oscillation Sources Based on a Digital Twin

Intelligent Location Method and System for Power System Oscillation Sources Based on Digital Twin

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