Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion
Transient protection has the advantage of ultra-high-speed action, but traditional transient protection is susceptible to the influence of two fault condition attributes, namely, transition resistance and initial angle of fault, and there are the problems of insufficient sensitivity and insufficient...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/27/1/61 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832588550791495680 |
|---|---|
| author | Zhenwei Guo Ruiqiang Zhao Zebo Huang Yongyan Jiang Haojie Li Yingcai Deng |
| author_facet | Zhenwei Guo Ruiqiang Zhao Zebo Huang Yongyan Jiang Haojie Li Yingcai Deng |
| author_sort | Zhenwei Guo |
| collection | DOAJ |
| description | Transient protection has the advantage of ultra-high-speed action, but traditional transient protection is susceptible to the influence of two fault condition attributes, namely, transition resistance and initial angle of fault, and there are the problems of insufficient sensitivity and insufficient reliability under weak faults. To this end, the propagation characteristics of high-frequency components of transient voltage in bus and line systems are explored, and a new method of unit protection based on the entropy difference in transient voltage information is proposed. In order to solve the problem of single-ended transient protection not being able to reliably distinguish line faults from bus faults and adjacent line first-end faults, the difference between the entropy of line voltage and the entropy of bus voltage was introduced as a fault characteristic. Aimed at the susceptibility of transient protection to the influence of fault condition attributes, composite fault characteristics containing fault attribute information were obtained by integrating fault characteristics with fault condition attributes to overcome the adverse influence of fault condition attributes on transient protection and improve the reliability of the protection. The algorithm solved 38.9% of the original cross-data, 36.1% of the false actions, and 6.1% of the rejected actions. Finally, the accuracy and reliability of the proposed algorithm were verified by extensive ATP-Draw simulation tests. |
| format | Article |
| id | doaj-art-57641d1e03b64799a1c347ece63cc7a9 |
| institution | Kabale University |
| issn | 1099-4300 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj-art-57641d1e03b64799a1c347ece63cc7a92025-01-24T13:31:51ZengMDPI AGEntropy1099-43002025-01-012716110.3390/e27010061Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute FusionZhenwei Guo0Ruiqiang Zhao1Zebo Huang2Yongyan Jiang3Haojie Li4Yingcai Deng5School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaTransient protection has the advantage of ultra-high-speed action, but traditional transient protection is susceptible to the influence of two fault condition attributes, namely, transition resistance and initial angle of fault, and there are the problems of insufficient sensitivity and insufficient reliability under weak faults. To this end, the propagation characteristics of high-frequency components of transient voltage in bus and line systems are explored, and a new method of unit protection based on the entropy difference in transient voltage information is proposed. In order to solve the problem of single-ended transient protection not being able to reliably distinguish line faults from bus faults and adjacent line first-end faults, the difference between the entropy of line voltage and the entropy of bus voltage was introduced as a fault characteristic. Aimed at the susceptibility of transient protection to the influence of fault condition attributes, composite fault characteristics containing fault attribute information were obtained by integrating fault characteristics with fault condition attributes to overcome the adverse influence of fault condition attributes on transient protection and improve the reliability of the protection. The algorithm solved 38.9% of the original cross-data, 36.1% of the false actions, and 6.1% of the rejected actions. Finally, the accuracy and reliability of the proposed algorithm were verified by extensive ATP-Draw simulation tests.https://www.mdpi.com/1099-4300/27/1/61transient voltage unit protectionfault condition propertiesfusion of fault informationvariational modal decomposition (VMD)information entropy |
| spellingShingle | Zhenwei Guo Ruiqiang Zhao Zebo Huang Yongyan Jiang Haojie Li Yingcai Deng Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion Entropy transient voltage unit protection fault condition properties fusion of fault information variational modal decomposition (VMD) information entropy |
| title | Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion |
| title_full | Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion |
| title_fullStr | Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion |
| title_full_unstemmed | Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion |
| title_short | Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion |
| title_sort | transient voltage information entropy difference unit protection based on fault condition attribute fusion |
| topic | transient voltage unit protection fault condition properties fusion of fault information variational modal decomposition (VMD) information entropy |
| url | https://www.mdpi.com/1099-4300/27/1/61 |
| work_keys_str_mv | AT zhenweiguo transientvoltageinformationentropydifferenceunitprotectionbasedonfaultconditionattributefusion AT ruiqiangzhao transientvoltageinformationentropydifferenceunitprotectionbasedonfaultconditionattributefusion AT zebohuang transientvoltageinformationentropydifferenceunitprotectionbasedonfaultconditionattributefusion AT yongyanjiang transientvoltageinformationentropydifferenceunitprotectionbasedonfaultconditionattributefusion AT haojieli transientvoltageinformationentropydifferenceunitprotectionbasedonfaultconditionattributefusion AT yingcaideng transientvoltageinformationentropydifferenceunitprotectionbasedonfaultconditionattributefusion |