Assessment method for identification of electrical connectivity and thermal stability of power grid
Primary equipment failure in substation has a significant impact on the reliability of the power supply, and even threatens the thermal stability of power grid. This study presents a method identification of electrical connectivity and thermal stability assessment of power grid after primary equipme...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-04-01
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| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8585 |
| _version_ | 1818350887406403584 |
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| author | Yao-Yu Xu Liang-Shu Li Shuang-Zan Ren Yuan Li Ning Liu Guan-Jun Zhang |
| author_facet | Yao-Yu Xu Liang-Shu Li Shuang-Zan Ren Yuan Li Ning Liu Guan-Jun Zhang |
| author_sort | Yao-Yu Xu |
| collection | DOAJ |
| description | Primary equipment failure in substation has a significant impact on the reliability of the power supply, and even threatens the thermal stability of power grid. This study presents a method identification of electrical connectivity and thermal stability assessment of power grid after primary equipment failure. The identification method of electrical connectivity based on incidence matrix provides a way to determine load curtailment after equipment failure. Subsequently, the inject power of substation bus in power grid is modified by load curtailment. Moreover, based on the DC power flow model, the active power flow distribution of power grid is calculated, which is used to evaluate whether the active power of lines exceeds limit. Compared to the traditional N − 1 assessment method, this method not only has the advantages of fast calculation and strong pertinence but also of convenience for the field application. |
| first_indexed | 2024-12-13T18:28:59Z |
| format | Article |
| id | doaj.art-e7bc2aae6bd34508ad3f7dad4305a599 |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-13T18:28:59Z |
| publishDate | 2019-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-e7bc2aae6bd34508ad3f7dad4305a5992022-12-21T23:35:32ZengWileyThe Journal of Engineering2051-33052019-04-0110.1049/joe.2018.8585JOE.2018.8585Assessment method for identification of electrical connectivity and thermal stability of power gridYao-Yu Xu0Liang-Shu Li1Shuang-Zan Ren2Yuan Li3Ning Liu4Guan-Jun Zhang5State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong UniversityState Grid Shaanxi Electric Power CompanyState Grid Shaanxi Electric Power Research InstituteState Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong UniversityState Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong UniversityState Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong UniversityPrimary equipment failure in substation has a significant impact on the reliability of the power supply, and even threatens the thermal stability of power grid. This study presents a method identification of electrical connectivity and thermal stability assessment of power grid after primary equipment failure. The identification method of electrical connectivity based on incidence matrix provides a way to determine load curtailment after equipment failure. Subsequently, the inject power of substation bus in power grid is modified by load curtailment. Moreover, based on the DC power flow model, the active power flow distribution of power grid is calculated, which is used to evaluate whether the active power of lines exceeds limit. Compared to the traditional N − 1 assessment method, this method not only has the advantages of fast calculation and strong pertinence but also of convenience for the field application.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8585thermal stabilitysubstationspower system reliabilitypower gridsload flowdemand side managementpower system stabilityelectrical connectivitypower gridprimary equipment failurepower supplythermal stability assessmentidentification methodinject powerDC power flow modelactive power flow distributionsubstationload curtailmentincidence matrix |
| spellingShingle | Yao-Yu Xu Liang-Shu Li Shuang-Zan Ren Yuan Li Ning Liu Guan-Jun Zhang Assessment method for identification of electrical connectivity and thermal stability of power grid The Journal of Engineering thermal stability substations power system reliability power grids load flow demand side management power system stability electrical connectivity power grid primary equipment failure power supply thermal stability assessment identification method inject power DC power flow model active power flow distribution substation load curtailment incidence matrix |
| title | Assessment method for identification of electrical connectivity and thermal stability of power grid |
| title_full | Assessment method for identification of electrical connectivity and thermal stability of power grid |
| title_fullStr | Assessment method for identification of electrical connectivity and thermal stability of power grid |
| title_full_unstemmed | Assessment method for identification of electrical connectivity and thermal stability of power grid |
| title_short | Assessment method for identification of electrical connectivity and thermal stability of power grid |
| title_sort | assessment method for identification of electrical connectivity and thermal stability of power grid |
| topic | thermal stability substations power system reliability power grids load flow demand side management power system stability electrical connectivity power grid primary equipment failure power supply thermal stability assessment identification method inject power DC power flow model active power flow distribution substation load curtailment incidence matrix |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8585 |
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