A Study on HVDC Overcurrent During Commutation Failure
Commutation failure is a common fault for HVDC transmission systems. The DC overcurrent induced during commutation failure not only endangers equipment safety but also threatens the system stability. In this paper, a reduced-order system model that can accurately describe the overcurrent dynamics du...
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| Veröffentlicht in: | IEEE transactions on power delivery 2024-06, Vol.39 (3), p.1963-1974 |
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| container_end_page | 1974 |
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| container_issue | 3 |
| container_start_page | 1963 |
| container_title | IEEE transactions on power delivery |
| container_volume | 39 |
| creator | Liao, Shengwen Gan, Deqiang Shi, Zhanwu |
| description | Commutation failure is a common fault for HVDC transmission systems. The DC overcurrent induced during commutation failure not only endangers equipment safety but also threatens the system stability. In this paper, a reduced-order system model that can accurately describe the overcurrent dynamics during commutation failure in AC-DC system is first established using a singular perturbation method. Then a regular perturbation method is suggested to obtain the time-domain analytical solution for overcurrent estimation based on the reduced-order weak nonlinear system. A parametric study is further provided with phase portrait, showing how the equivalent reactance of AC system and relevant parameters of HVDC itself can affect the overcurrent caused by commutation failure, and how voltage stability is affected. The proposed overcurrent estimation method and qualitative analysis results are verified using several AC-DC test systems including an actual 177-machine provincial power system in China. |
| doi_str_mv | 10.1109/TPWRD.2024.3384572 |
| format | Article |
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The DC overcurrent induced during commutation failure not only endangers equipment safety but also threatens the system stability. In this paper, a reduced-order system model that can accurately describe the overcurrent dynamics during commutation failure in AC-DC system is first established using a singular perturbation method. Then a regular perturbation method is suggested to obtain the time-domain analytical solution for overcurrent estimation based on the reduced-order weak nonlinear system. A parametric study is further provided with phase portrait, showing how the equivalent reactance of AC system and relevant parameters of HVDC itself can affect the overcurrent caused by commutation failure, and how voltage stability is affected. 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The DC overcurrent induced during commutation failure not only endangers equipment safety but also threatens the system stability. In this paper, a reduced-order system model that can accurately describe the overcurrent dynamics during commutation failure in AC-DC system is first established using a singular perturbation method. Then a regular perturbation method is suggested to obtain the time-domain analytical solution for overcurrent estimation based on the reduced-order weak nonlinear system. A parametric study is further provided with phase portrait, showing how the equivalent reactance of AC system and relevant parameters of HVDC itself can affect the overcurrent caused by commutation failure, and how voltage stability is affected. The proposed overcurrent estimation method and qualitative analysis results are verified using several AC-DC test systems including an actual 177-machine provincial power system in China.</description><subject>AC-DC system</subject><subject>Circuit faults</subject><subject>Commutation</subject><subject>commutation failure</subject><subject>DC overcurrent</subject><subject>Electric power systems</subject><subject>Exact solutions</subject><subject>Failure</subject><subject>HVDC</subject><subject>HVDC transmission</subject><subject>Inverters</subject><subject>Mathematical models</subject><subject>Nonlinear systems</subject><subject>Overcurrent</subject><subject>Perturbation methods</subject><subject>phase portrait</subject><subject>Power system stability</subject><subject>Qualitative analysis</subject><subject>Reactance</subject><subject>Rectifiers</subject><subject>Reduced order models</subject><subject>regular perturbation</subject><subject>singular perturbation</subject><subject>Singular perturbation methods</subject><subject>Systems stability</subject><subject>Time domain analysis</subject><subject>Voltage stability</subject><issn>0885-8977</issn><issn>1937-4208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkM1KAzEURoMoWKsvIC4GXE-9-U-WZWqtUKho1WXIpIlMaWdqZiL07Z3aLlzdzTnfhYPQLYYRxqAfli-fr5MRAcJGlCrGJTlDA6ypzBkBdY4GoBTPlZbyEl217RoAGGgYIDHO3rq02mdNnc0-JkW2-PHRpRh93WWTFKv6Kyua7TZ1tqt6ZmqrTYr-Gl0Eu2n9zekO0fv0cVnM8vni6bkYz3NHmOxyVwZMg7dlcG4ViGSEMaFL6laYl5p7aj0RjBPrBcEapKcOGFHClVwoGxQdovvj7i4238m3nVk3Kdb9S0OBK6IpA9xT5Ei52LRt9MHsYrW1cW8wmEMf89fHHPqYU59eujtKlff-n8A0EKHoL-ekYJw</recordid><startdate>20240601</startdate><enddate>20240601</enddate><creator>Liao, Shengwen</creator><creator>Gan, Deqiang</creator><creator>Shi, Zhanwu</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The DC overcurrent induced during commutation failure not only endangers equipment safety but also threatens the system stability. In this paper, a reduced-order system model that can accurately describe the overcurrent dynamics during commutation failure in AC-DC system is first established using a singular perturbation method. Then a regular perturbation method is suggested to obtain the time-domain analytical solution for overcurrent estimation based on the reduced-order weak nonlinear system. A parametric study is further provided with phase portrait, showing how the equivalent reactance of AC system and relevant parameters of HVDC itself can affect the overcurrent caused by commutation failure, and how voltage stability is affected. The proposed overcurrent estimation method and qualitative analysis results are verified using several AC-DC test systems including an actual 177-machine provincial power system in China.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPWRD.2024.3384572</doi><tpages>12</tpages><orcidid>https://orcid.org/0009-0004-5205-4753</orcidid><orcidid>https://orcid.org/0000-0001-5839-4952</orcidid><orcidid>https://orcid.org/0000-0002-5096-9739</orcidid></addata></record> |
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| identifier | ISSN: 0885-8977 |
| ispartof | IEEE transactions on power delivery, 2024-06, Vol.39 (3), p.1963-1974 |
| issn | 0885-8977 1937-4208 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | AC-DC system Circuit faults Commutation commutation failure DC overcurrent Electric power systems Exact solutions Failure HVDC HVDC transmission Inverters Mathematical models Nonlinear systems Overcurrent Perturbation methods phase portrait Power system stability Qualitative analysis Reactance Rectifiers Reduced order models regular perturbation singular perturbation Singular perturbation methods Systems stability Time domain analysis Voltage stability |
| title | A Study on HVDC Overcurrent During Commutation Failure |
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