Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances
In this work, we study coordination control and effective deployment of thyristor-controlled series compensation (TCSC) to protect power grids against disruptive disturbances. The power grid consists of flexible alternate current transmission systems (FACTS) devices for regulating power flow, phasor...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/169373 |
| _version_ | 1826127405866024960 |
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| author | Wang, Zhaoxu Zhai, Chao Zhang, Hehong Xiao, Gaoxi Chen, Guanghou Xu, Yulin |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wang, Zhaoxu Zhai, Chao Zhang, Hehong Xiao, Gaoxi Chen, Guanghou Xu, Yulin |
| author_sort | Wang, Zhaoxu |
| collection | NTU |
| description | In this work, we study coordination control and effective deployment of thyristor-controlled series compensation (TCSC) to protect power grids against disruptive disturbances. The power grid consists of flexible alternate current transmission systems (FACTS) devices for regulating power flow, phasor measurement units (PMUs) for detecting system states, and control station for generating the regulation signals. We propose a novel coordination control approach of TCSC devices to change branch impedance and regulate the power flow against unexpected disturbances on buses or branches. More significantly, a numerical method is developed to estimate a gradient vector for generating regulation signals of TCSC devices and reducing computational costs. To describe the degree of power system stress, a performance index is designed based on the error between the desired power flow and actual values. Moreover, technical analysis is presented to ensure the convergence of the proposed coordination control algorithm. Numerical simulations are implemented to substantiate that the coordination control approach can effectively alleviate the stress caused by contingencies on IEEE 24 bus system, as compared to the classic PID control. It is also demonstrated that the deployment of TCSCs can alleviate the system stress greatly by considering both impedance magnitude and active power on branches. |
| first_indexed | 2024-10-01T07:08:20Z |
| format | Journal Article |
| id | ntu-10356/169373 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:08:20Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1693732023-07-21T15:40:43Z Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances Wang, Zhaoxu Zhai, Chao Zhang, Hehong Xiao, Gaoxi Chen, Guanghou Xu, Yulin School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Coordination Control Power Systems In this work, we study coordination control and effective deployment of thyristor-controlled series compensation (TCSC) to protect power grids against disruptive disturbances. The power grid consists of flexible alternate current transmission systems (FACTS) devices for regulating power flow, phasor measurement units (PMUs) for detecting system states, and control station for generating the regulation signals. We propose a novel coordination control approach of TCSC devices to change branch impedance and regulate the power flow against unexpected disturbances on buses or branches. More significantly, a numerical method is developed to estimate a gradient vector for generating regulation signals of TCSC devices and reducing computational costs. To describe the degree of power system stress, a performance index is designed based on the error between the desired power flow and actual values. Moreover, technical analysis is presented to ensure the convergence of the proposed coordination control algorithm. Numerical simulations are implemented to substantiate that the coordination control approach can effectively alleviate the stress caused by contingencies on IEEE 24 bus system, as compared to the classic PID control. It is also demonstrated that the deployment of TCSCs can alleviate the system stress greatly by considering both impedance magnitude and active power on branches. Published version 2023-07-17T04:26:40Z 2023-07-17T04:26:40Z 2022 Journal Article Wang, Z., Zhai, C., Zhang, H., Xiao, G., Chen, G. & Xu, Y. (2022). Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances. Kybernetika, 58(2), 218-236. https://dx.doi.org/10.14736/kyb-2022-2-0218 0023-5954 https://hdl.handle.net/10356/169373 10.14736/kyb-2022-2-0218 2-s2.0-85145467750 2 58 218 236 en Kybernetika © 2022 Institute of Information Theory and Automation. All rights reserved. This paper was published in Kybernetika and is made available with permission of Institute of Information Theory and Automation. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Coordination Control Power Systems Wang, Zhaoxu Zhai, Chao Zhang, Hehong Xiao, Gaoxi Chen, Guanghou Xu, Yulin Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances |
| title | Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances |
| title_full | Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances |
| title_fullStr | Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances |
| title_full_unstemmed | Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances |
| title_short | Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances |
| title_sort | coordination control and analysis of tcsc devices to protect electrical power systems against disruptive disturbances |
| topic | Engineering::Electrical and electronic engineering Coordination Control Power Systems |
| url | https://hdl.handle.net/10356/169373 |
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