Series Compensated Line Parameters Estimation Using Synchrophasor Measurements

Momen, Ahmed; Chakhchoukh, Yacine; Johnson, Brian K.

doi:10.1109/tpwrd.2019.2915992

Cited by 7 publications

(3 citation statements)

References 17 publications

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“…These line parameters may not be correct always and depend on many practical conditions such as weather, age of the conductor, temperature and sag, etc. The online estimation of line parameters accurately is challenging with series compensation [30] due to voltage and current inversions as well as the presence of low-frequency oscillations during faults on lines close to the capacitors [31]. Therefore, the FL accuracy with the techniques as in [17]- [18] and [21]- [28] may not be good enough for SCLs.…”

Section: Introductionmentioning

confidence: 99%

Model Free Traveling Wave Based Fault Location Method for Series Compensated Transmission Line

Naidu¹,

Pradhan

2020

IEEE Access

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Locating fault position in a series compensated transmission line is a difficult task due to the non-linear characteristics of the metal-oxide varistor which is present in the protection system of the compensator. In this paper, a model-free two-terminal traveling wave-based fault location method for a series compensated line is proposed. The technique makes use of two subroutines which calculate the fault locations assuming that the fault position to be on the left and right side of the series compensator respectively. The method then selects the correct fault location of the two by a special logic based on faulted half-section identification. The first two traveling wave arrival times recorded at both the terminals of the line are used in the method. The proposed technique does not require model information of the series capacitor and transmission line. It has been verified using the PSCAD/EMTDC model of a 400-kV, 300 km transmission line which is compensated by a fixed series capacitor in the middle and line ends. The performance of the proposed method is compared with a commercially available classical two-ended techniques and setting-free method. INDEX TERMS Faulted half-section identification, series compensated lines, synchronized data, travelingwave-based fault locator This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.

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Section: Introductionmentioning

confidence: 99%

Model Free Traveling Wave Based Fault Location Method for Series Compensated Transmission Line

Naidu¹,

Pradhan

2020

IEEE Access

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“…Another testbed with similar functionality was developed at the Center for Development of Advanced Computing (C-DAC), where it is used to detect potential intrusions at the RTU of the synchronous generator [115]. The testbed developed at the University of Idaho (ISAAC) is another security-oriented testbed that emulates a realistic power utility and is used to test various integrated cybersecurity solutions [116][117][118]. This testbed was used for experimental evaluations, whereby the data of normal and attacked communications were collected for data-driven stochastic anomaly detection on smart grid communications [29].…”

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confidence: 99%

A Comprehensive Survey on Cyber-Physical Smart Grid Testbed Architectures: Requirements and Challenges

et al. 2021

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The integration of improved control techniques with advanced information technologies enables the rapid development of smart grids. The necessity of having an efficient, reliable, and flexible communication infrastructure is achieved by enabling real-time data exchange between numerous intelligent and traditional electrical grid elements. The performance and efficiency of the power grid are enhanced with the incorporation of communication networks, intelligent automation, advanced sensors, and information technologies. Although smart grid technologies bring about valuable economic, social, and environmental benefits, testing the combination of heterogeneous and co-existing Cyber-Physical-Smart Grids (CP-SGs) with conventional technologies presents many challenges. The examination for both hardware and software components of the Smart Grid (SG) system is essential prior to the deployment in real-time systems. This can take place by developing a prototype to mimic the real operational circumstances with adequate configurations and precision. Therefore, it is essential to summarize state-of-the-art technologies of industrial control system testbeds and evaluate new technologies and vulnerabilities with the motivation of stimulating discoveries and designs. In this paper, a comprehensive review of the advancement of CP-SGs with their corresponding testbeds including diverse testing paradigms has been performed. In particular, we broadly discuss CP-SG testbed architectures along with the associated functions and main vulnerabilities. The testbed requirements, constraints, and applications are also discussed. Finally, the trends and future research directions are highlighted and specified.

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“…The robust LTS estimation was considered for SSE on AC systems [24,[40][41][42][43] and estimating line parameters [44]. The rest of the paper is organized as follows.…”

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confidence: 99%

Resiliency Improvement of an AC/DC Power Grid with Embedded LCC-HVDC Using Robust Power System State Estimation

et al. 2021

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The growth of renewable energy generation in the power grid brings attention to high-voltage direct current (HVDC) transmission as a valuable solution for stabilizing the system. Robust hybrid power system state estimation could enhance the resilience of the control of these systems. This paper proposes a two-stage, highly robust least-trimmed squares (LTS)-based estimator. The first step combines the supervisory control and data acquisition (SCADA) measurements using the robust LTS-based estimator. The second step merges the obtained state results with the available phasor measurement units (PMUs) measurements using a robust Huber M-estimator. The proposed robust LTS-based estimator shows good performance in the presence of Gaussian measurement noise. The proposed estimator is shown to resist and correct the effect of false data injection (FDI) attacks and random errors on the measurement vector and the Jacobian matrix. The state estimation (SE) is executed on a modified version of the CIGRE bipole LCC-HVDC benchmark model integrated into the IEEE 12-bus AC dynamic test system. The obtained simulation results confirm the effectiveness and robustness of the proposed two-stage LTS-based SE.

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Series Compensated Line Parameters Estimation Using Synchrophasor Measurements

Cited by 7 publications

References 17 publications

Model Free Traveling Wave Based Fault Location Method for Series Compensated Transmission Line

Model Free Traveling Wave Based Fault Location Method for Series Compensated Transmission Line

A Comprehensive Survey on Cyber-Physical Smart Grid Testbed Architectures: Requirements and Challenges

Resiliency Improvement of an AC/DC Power Grid with Embedded LCC-HVDC Using Robust Power System State Estimation

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