Power supply risk assessment method for relay protection system faults
The influence and the potential risk due to hidden faults of a relay protection system on power supply in distribution systems are paid more and more attention to. A probability analysis method is used to analyse fault characteristics and action mechanism of dominant faults, hidden misoperation and...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2016-12-01
|
| Series: | Archives of Electrical Engineering |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/aee.2016.65.issue-4/aee-2016-0056/aee-2016-0056.xml?format=INT |
| _version_ | 1818536323268476928 |
|---|---|
| author | Tuyou Si Jiekang Wu Weideng Yuan Anan Du |
| author_facet | Tuyou Si Jiekang Wu Weideng Yuan Anan Du |
| author_sort | Tuyou Si |
| collection | DOAJ |
| description | The influence and the potential risk due to hidden faults of a relay protection system on power supply in distribution systems are paid more and more attention to. A probability analysis method is used to analyse fault characteristics and action mechanism of dominant faults, hidden misoperation and non-operation of the relay protection systems, and failure probability model of relay protection system is constructed and simplified. The effects of dominant faults, hidden misoperation and non-operation of the relay protection systems on the reduced power supply load power are analysed, and a probabilistic model for reduced power supply load power is constructed by three parts corresponding to dominant faults, hidden misoperation and non-operation. A probability calculation method of power supply risk occurrence due to hidden faults of relay protecttion system is proposed considering the fault probability of the relay protection systems, the frequency of the hidden faults occurring in operation period, the reduced power supply load power or load power outage, and the connection mode of the in-lines, out-lines and transformers in a substation. The feasibility and applicability of the proposed method for estimation of risk value probability of the relay protection systems is verified by two studied examples. |
| first_indexed | 2024-12-11T18:36:28Z |
| format | Article |
| id | doaj.art-c57fe5ecf05e468dbb8c2eac4f93dc66 |
| institution | Directory Open Access Journal |
| issn | 2300-2506 |
| language | English |
| last_indexed | 2024-12-11T18:36:28Z |
| publishDate | 2016-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Electrical Engineering |
| spelling | doaj.art-c57fe5ecf05e468dbb8c2eac4f93dc662022-12-22T00:54:44ZengPolish Academy of SciencesArchives of Electrical Engineering2300-25062016-12-0165480381410.1515/aee-2016-0056aee-2016-0056Power supply risk assessment method for relay protection system faultsTuyou Si0Jiekang Wu1Weideng Yuan2Anan Du3Dongguan Power Supply Bureau Guangdong Power Grid Co., Ltd Dongguan 523008, ChinaSchool of Automation Guangdong University of Technology Guangzhou, 510006, ChinaDongguan Power Supply Bureau Guangdong Power Grid Co., Ltd Dongguan 523008, ChinaSchool of Automation Guangdong University of Technology Guangzhou, 510006, ChinaThe influence and the potential risk due to hidden faults of a relay protection system on power supply in distribution systems are paid more and more attention to. A probability analysis method is used to analyse fault characteristics and action mechanism of dominant faults, hidden misoperation and non-operation of the relay protection systems, and failure probability model of relay protection system is constructed and simplified. The effects of dominant faults, hidden misoperation and non-operation of the relay protection systems on the reduced power supply load power are analysed, and a probabilistic model for reduced power supply load power is constructed by three parts corresponding to dominant faults, hidden misoperation and non-operation. A probability calculation method of power supply risk occurrence due to hidden faults of relay protecttion system is proposed considering the fault probability of the relay protection systems, the frequency of the hidden faults occurring in operation period, the reduced power supply load power or load power outage, and the connection mode of the in-lines, out-lines and transformers in a substation. The feasibility and applicability of the proposed method for estimation of risk value probability of the relay protection systems is verified by two studied examples.http://www.degruyter.com/view/j/aee.2016.65.issue-4/aee-2016-0056/aee-2016-0056.xml?format=INTreduced power supply load powerrelay protection systemsrisk valuepower supply risk assessment |
| spellingShingle | Tuyou Si Jiekang Wu Weideng Yuan Anan Du Power supply risk assessment method for relay protection system faults Archives of Electrical Engineering reduced power supply load power relay protection systems risk value power supply risk assessment |
| title | Power supply risk assessment method for relay protection system faults |
| title_full | Power supply risk assessment method for relay protection system faults |
| title_fullStr | Power supply risk assessment method for relay protection system faults |
| title_full_unstemmed | Power supply risk assessment method for relay protection system faults |
| title_short | Power supply risk assessment method for relay protection system faults |
| title_sort | power supply risk assessment method for relay protection system faults |
| topic | reduced power supply load power relay protection systems risk value power supply risk assessment |
| url | http://www.degruyter.com/view/j/aee.2016.65.issue-4/aee-2016-0056/aee-2016-0056.xml?format=INT |
| work_keys_str_mv | AT tuyousi powersupplyriskassessmentmethodforrelayprotectionsystemfaults AT jiekangwu powersupplyriskassessmentmethodforrelayprotectionsystemfaults AT weidengyuan powersupplyriskassessmentmethodforrelayprotectionsystemfaults AT anandu powersupplyriskassessmentmethodforrelayprotectionsystemfaults |