Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude.

Bahtiyar Can Karatas; Hjörtur Jóhannsson; Arne Hejde Nielsen

doi:10.1109/ISGTEurope.2018.8571648

Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude.

Bahtiyar Can Karatas, Hjörtur Jóhannsson, Arne Hejde Nielsen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

This paper identifies weakness of existing method for voltage stability assessment and proposes new approach for determining point of maximum deliverable power to a given load that accounts for the variations in the Thevenin voltage magnitude. The approach uses Thevenin equivalents seen from nodes of constant voltage magnitude and load nodes in order to determine a distance to instability. A simple five-bus system together with IEEE 14 bus system were used in order to perform dynamic simulation in PSS/E. The simulation data were used to create synthetic Phasor Measurement Unit (PMU) snapshots, which served as input to the proposed approach. The new approach is demonstrated on the two test systems, where improved accuracy in determining the point of maximum deliverable power is demonstrated. The results show that the point of maximum deliverable power to the load occurs well before the Thevenin impedance matching criteria.

Original language	English
Title of host publication	Proceedings of 8th IEEE PES Innovative Smart Grid Technologies Conference
Number of pages	6
Publisher	IEEE
Publication date	2018
ISBN (Print)	978-1-5386-4505-5
DOIs	https://doi.org/10.1109/ISGTEurope.2018.8571648
Publication status	Published - 2018
Event	2018 IEEE PES Innovative Smart Grid Technologies Conference Europe - Sarajevo, Bosnia and Herzegovina Duration: 21 Oct 2018 → 25 Oct 2018 Conference number: 8 https://ieeexplore.ieee.org/xpl/conhome/8540978/proceeding

Conference

Conference	2018 IEEE PES Innovative Smart Grid Technologies Conference Europe
Number	8
Country/Territory	Bosnia and Herzegovina
City	Sarajevo
Period	21/10/2018 → 25/10/2018
Internet address	https://ieeexplore.ieee.org/xpl/conhome/8540978/proceeding

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title = "Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude.",

abstract = "This paper identifies weakness of existing method for voltage stability assessment and proposes new approach for determining point of maximum deliverable power to a given load that accounts for the variations in the Thevenin voltage magnitude. The approach uses Thevenin equivalents seen from nodes of constant voltage magnitude and load nodes in order to determine a distance to instability. A simple five-bus system together with IEEE 14 bus system were used in order to perform dynamic simulation in PSS/E. The simulation data were used to create synthetic Phasor Measurement Unit (PMU) snapshots, which served as input to the proposed approach. The new approach is demonstrated on the two test systems, where improved accuracy in determining the point of maximum deliverable power is demonstrated. The results show that the point of maximum deliverable power to the load occurs well before the Thevenin impedance matching criteria.",

author = "Karatas, {Bahtiyar Can} and Hj{\"o}rtur J{\'o}hannsson and Nielsen, {Arne Hejde}",

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note = "2018 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT Europe 2018 ; Conference date: 21-10-2018 Through 25-10-2018",

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Karatas, BC, Jóhannsson, H & Nielsen, AH 2018, Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude. in Proceedings of 8th IEEE PES Innovative Smart Grid Technologies Conference. IEEE, 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe, Sarajevo, Bosnia and Herzegovina, 21/10/2018. https://doi.org/10.1109/ISGTEurope.2018.8571648

Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude. / Karatas, Bahtiyar Can; Jóhannsson, Hjörtur; Nielsen, Arne Hejde.
Proceedings of 8th IEEE PES Innovative Smart Grid Technologies Conference. IEEE, 2018.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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T1 - Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude.

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N2 - This paper identifies weakness of existing method for voltage stability assessment and proposes new approach for determining point of maximum deliverable power to a given load that accounts for the variations in the Thevenin voltage magnitude. The approach uses Thevenin equivalents seen from nodes of constant voltage magnitude and load nodes in order to determine a distance to instability. A simple five-bus system together with IEEE 14 bus system were used in order to perform dynamic simulation in PSS/E. The simulation data were used to create synthetic Phasor Measurement Unit (PMU) snapshots, which served as input to the proposed approach. The new approach is demonstrated on the two test systems, where improved accuracy in determining the point of maximum deliverable power is demonstrated. The results show that the point of maximum deliverable power to the load occurs well before the Thevenin impedance matching criteria.

AB - This paper identifies weakness of existing method for voltage stability assessment and proposes new approach for determining point of maximum deliverable power to a given load that accounts for the variations in the Thevenin voltage magnitude. The approach uses Thevenin equivalents seen from nodes of constant voltage magnitude and load nodes in order to determine a distance to instability. A simple five-bus system together with IEEE 14 bus system were used in order to perform dynamic simulation in PSS/E. The simulation data were used to create synthetic Phasor Measurement Unit (PMU) snapshots, which served as input to the proposed approach. The new approach is demonstrated on the two test systems, where improved accuracy in determining the point of maximum deliverable power is demonstrated. The results show that the point of maximum deliverable power to the load occurs well before the Thevenin impedance matching criteria.

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Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude.

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