Synchrophasor Data Analytics: Transmission Line Parameters Online Estimation for Energy Management

Lin, Junjie; Song, Jie; Lü, Chao

doi:10.1109/tem.2019.2939173

Cited by 12 publications

(3 citation statements)

References 28 publications

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“…Advances in condition monitoring and data analysis technology based on accurate grid parameters support the improvement of the level of power system automation and play an increasingly important role in the safe and economic operation of the grid. Accurate acquisition of transmission line parameters is the key to further tide calculations, condition identification and other grid analyses, and can provide reliable support for grid scheduling, planning and power market operations [1].…”

Section: Introductionmentioning

confidence: 99%

A method for estimating line industrial frequency parameters based on wideband information

Dong

Chen

Guo

et al. 2022

J. Phys.: Conf. Ser.

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Accurate acquisition of transmission line parameters is the basis for grid condition monitoring and data analysis, which is of great significance for the safe and economic operation of the grid. With the widespread use of phasor measurement unit (PMU) technology, the wideband information in the grid can be exploited, which broadens the new direction for line parameter identification. In this paper, a method is proposed to identify line frequency parameters based on wideband information. A mathematical model for line parameter identification with wideband information is established, and the identification of line frequency parameters is achieved by iterative solution through least squares. The results show that the accuracy of the parameter identification is improved by adding wideband information, and the identification of industrial frequency parameters for lightly loaded lines can be achieved. Finally, the feasibility and correctness of the method is verified by simulation.

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Section: Introductionmentioning

confidence: 99%

A method for estimating line industrial frequency parameters based on wideband information

Dong

Chen

Guo

et al. 2022

J. Phys.: Conf. Ser.

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show abstract

“…Ref. [21] incorporates the Huber function into a recursive least squares (RLS) method to improve its robustness to bad data. Ref.…”

Section: Introductionmentioning

confidence: 99%

Robust Identification Method for Transmission Line Parameters That Considers PMU Phase Angle Error

Xue

Martin

et al. 2020

IEEE Access

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Accurate transmission line parameters are the basis of power system calculations. The measured phasor measurement unit (PMU) phase angle data at both ends of a line may contain large errors caused by synchronization problems, which can seriously affect the accuracy of parameter identification. This paper proposes a robust PMU-based method for calculating transmission line parameters from PMU data at both ends of a line in such a way that a synchronization error between the ends does not degrade the results. Specifically, a π -equivalent model for the transmission line is established, and a least square objective function with nonlinear equations for positive parameter identification is derived. Furthermore, to reduce the impact of noise and biased data, median estimation is used to obtain the final result. Finally, a simulation shows the effectiveness and robustness of the proposed method, and its practicality is demonstrated in a case study using measured PMU data.

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“…Phasor measurement unit (PMU) measurements can be used for real-time monitoring and analysis of the power system. Wide-scale research activities are being done on enhancing the power system operation and control while using the measurements obtained from the PMUs [5][6][7]. The measurement-based technique provides a snapshot of the system in terms of the measured variables.…”

Section: Introductionmentioning

confidence: 99%

Real‐time estimation of ATC using PMU data and ANN

Shukla

Singh

2020

IET Generation, Transmission & Distribution

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Synchrophasor Data Analytics: Transmission Line Parameters Online Estimation for Energy Management

Cited by 12 publications

References 28 publications

A method for estimating line industrial frequency parameters based on wideband information

A method for estimating line industrial frequency parameters based on wideband information

Robust Identification Method for Transmission Line Parameters That Considers PMU Phase Angle Error

Real‐time estimation of ATC using PMU data and ANN

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