An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters
Voltage sags and swells are significant issues of power quality. In order to alleviate voltage sags and swells on sensitive loads, a method is proposed to evaluate the bus and grid structure based on voltage sags/swells using voltage ellipse parameters. The voltage matrix is established for voltage...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9481134/ |
| _version_ | 1831537653407809536 |
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| author | Li Ma Dingrong Tian Taofeng Liu Shuping Gao Pengyuan Dong |
| author_facet | Li Ma Dingrong Tian Taofeng Liu Shuping Gao Pengyuan Dong |
| author_sort | Li Ma |
| collection | DOAJ |
| description | Voltage sags and swells are significant issues of power quality. In order to alleviate voltage sags and swells on sensitive loads, a method is proposed to evaluate the bus and grid structure based on voltage sags/swells using voltage ellipse parameters. The voltage matrix is established for voltage sags/swells caused by four types of short-circuit faults. The voltage matrix can be converted into a minor axis matrix and a major axis matrix using the Clarke transformation, and accordingly a voltage sag matrix and a voltage swell matrix can be obtained with the interaction between voltage sags/swells and voltage ellipse parameters. The key indicator and the vulnerability indicator of bus as well as the indicator of grid structure are defined according to the voltage sag matrix and swell matrix. The buses are sorted using the indicators proposed, and the result of bus sorting provides a basis for selecting the buses that need to be managed to alleviate voltage sags/swells. The experiment results in IEEE 30-bus system and IEEE 57-bus system show that these indicators facilitate the selection of the access point for newly-added sensitive loads, and provide a theoretical guidance to the mitigation of voltage sags and swells, and help to accomplish the planning, operation and transformation of power grid. |
| first_indexed | 2024-12-16T23:10:24Z |
| format | Article |
| id | doaj.art-58d55be45dd9443888df92bcbb98342d |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T23:10:24Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-58d55be45dd9443888df92bcbb98342d2022-12-21T22:12:26ZengIEEEIEEE Access2169-35362021-01-01910195910197110.1109/ACCESS.2021.30963299481134An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse ParametersLi Ma0https://orcid.org/0000-0002-9302-900XDingrong Tian1Taofeng Liu2Shuping Gao3Pengyuan Dong4School of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an, ChinaSchool of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an, ChinaSchool of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an, ChinaSchool of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an, ChinaSchool of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an, ChinaVoltage sags and swells are significant issues of power quality. In order to alleviate voltage sags and swells on sensitive loads, a method is proposed to evaluate the bus and grid structure based on voltage sags/swells using voltage ellipse parameters. The voltage matrix is established for voltage sags/swells caused by four types of short-circuit faults. The voltage matrix can be converted into a minor axis matrix and a major axis matrix using the Clarke transformation, and accordingly a voltage sag matrix and a voltage swell matrix can be obtained with the interaction between voltage sags/swells and voltage ellipse parameters. The key indicator and the vulnerability indicator of bus as well as the indicator of grid structure are defined according to the voltage sag matrix and swell matrix. The buses are sorted using the indicators proposed, and the result of bus sorting provides a basis for selecting the buses that need to be managed to alleviate voltage sags/swells. The experiment results in IEEE 30-bus system and IEEE 57-bus system show that these indicators facilitate the selection of the access point for newly-added sensitive loads, and provide a theoretical guidance to the mitigation of voltage sags and swells, and help to accomplish the planning, operation and transformation of power grid.https://ieeexplore.ieee.org/document/9481134/Busellipse parametersevaluation indicatorgrid structurevoltage sagsvoltage swells |
| spellingShingle | Li Ma Dingrong Tian Taofeng Liu Shuping Gao Pengyuan Dong An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters IEEE Access Bus ellipse parameters evaluation indicator grid structure voltage sags voltage swells |
| title | An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters |
| title_full | An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters |
| title_fullStr | An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters |
| title_full_unstemmed | An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters |
| title_short | An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters |
| title_sort | evaluation method for bus and grid structure based on voltage sags swells using voltage ellipse parameters |
| topic | Bus ellipse parameters evaluation indicator grid structure voltage sags voltage swells |
| url | https://ieeexplore.ieee.org/document/9481134/ |
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