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Adequacy of lyapunov control of power systems considering modelling details and control indices

Adequacy of lyapunov control of power systems considering modelling details and control indices
Adequacy of lyapunov control of power systems considering modelling details and control indices
Nonlinear excitation controllers for power systems are considered as promising replacements for their linear counterparts, such as power system stabilizers (PSSs). However, Lyapunov based nonlinear controllers currently available in literature have been derived using simplified third order machine dynamics and have not been tested on realistic power system models, and the costs associated with these controllers have also not been studied. The paper aims to assess the performance of existing Lyapunov controllers for a detailed benchmark power system model. Two new Lyapunov based nonlinear controllers have been derived using IEEE recommended subtransient machine model, and their performance and costs have been compared with existing methods. The controllers have been evaluated using metrics for both small signal stability and transient stability. It has been proven theoretically (via stability analysis) and demonstrated via simulations that proposed Lyapunov controllers are more viable options for control of power system oscillatory dynamics. It has also been demonstrated that detailed subtransient model is required for accurate estimation of states via dynamic state estimation for use in the realization of Lyapunov controllers.
Computational modeling, Lyapunov, Mathematical models, Nonlinear controller, Power system dynamics, Power system stability, Stability criteria, Transient analysis, Voltage control, critical clearing time, modal analysis, normal-form, power system dynamics, small signal stability, transient stability, voltage regulation
0885-8950
1-12
Mir, Abdul
491bb457-cbe5-4705-ab36-860b78763332
Singh, Abhinav Kumar
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Pal, Bikash Pal
794f30f1-7d35-4620-a8b2-2f367b2cc986
Senroy, Nilanjan
b4565b4f-78eb-4a88-8af9-9d8c29238a4d
Tu, Junjie
598e0629-fc72-4d24-ac7c-1fdeb735d937
Mir, Abdul
491bb457-cbe5-4705-ab36-860b78763332
Singh, Abhinav Kumar
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Pal, Bikash Pal
794f30f1-7d35-4620-a8b2-2f367b2cc986
Senroy, Nilanjan
b4565b4f-78eb-4a88-8af9-9d8c29238a4d
Tu, Junjie
598e0629-fc72-4d24-ac7c-1fdeb735d937

Mir, Abdul, Singh, Abhinav Kumar, Pal, Bikash Pal, Senroy, Nilanjan and Tu, Junjie (2022) Adequacy of lyapunov control of power systems considering modelling details and control indices. IEEE Transactions on Power Systems, 1-12. (doi:10.1109/TPWRS.2022.3180397). (In Press)

Record type: Article

Abstract

Nonlinear excitation controllers for power systems are considered as promising replacements for their linear counterparts, such as power system stabilizers (PSSs). However, Lyapunov based nonlinear controllers currently available in literature have been derived using simplified third order machine dynamics and have not been tested on realistic power system models, and the costs associated with these controllers have also not been studied. The paper aims to assess the performance of existing Lyapunov controllers for a detailed benchmark power system model. Two new Lyapunov based nonlinear controllers have been derived using IEEE recommended subtransient machine model, and their performance and costs have been compared with existing methods. The controllers have been evaluated using metrics for both small signal stability and transient stability. It has been proven theoretically (via stability analysis) and demonstrated via simulations that proposed Lyapunov controllers are more viable options for control of power system oscillatory dynamics. It has also been demonstrated that detailed subtransient model is required for accurate estimation of states via dynamic state estimation for use in the realization of Lyapunov controllers.

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Adequacy_of_Lyapunov_Control_of_Power_Systems_Considering_Modelling_Details_and_Control_Indices - Accepted Manuscript
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Accepted/In Press date: 8 June 2022
Additional Information: Publisher Copyright: IEEE
Keywords: Computational modeling, Lyapunov, Mathematical models, Nonlinear controller, Power system dynamics, Power system stability, Stability criteria, Transient analysis, Voltage control, critical clearing time, modal analysis, normal-form, power system dynamics, small signal stability, transient stability, voltage regulation

Identifiers

Local EPrints ID: 467980
URI: http://eprints.soton.ac.uk/id/eprint/467980
ISSN: 0885-8950
PURE UUID: ac5d989f-3bfa-456a-a7b7-2cdf3430684c
ORCID for Abhinav Kumar Singh: ORCID iD orcid.org/0000-0003-3376-6435

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Date deposited: 27 Jul 2022 16:49
Last modified: 28 Jul 2022 02:00

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Contributors

Author: Abdul Mir
Author: Abhinav Kumar Singh ORCID iD
Author: Bikash Pal Pal
Author: Nilanjan Senroy
Author: Junjie Tu

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