Energy dissipation device based on half-bridge sub-modules
When the onshore accurate current (AC) grid connected to the offshore wind power voltage source converter-based high voltage direct current (VSC-HVDC) transmission system fails,the surplus power continuously output by the wind farm causes DC overvoltage. The most effective way to solve the surplus p...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Power Engineering Technology
2022-09-01
|
| Series: | 电力工程技术 |
| Subjects: | |
| Online Access: | https://www.epet-info.com/dlgcjs/article/html/220324376 |
| _version_ | 1811258816501645312 |
|---|---|
| author | LIU Xinhe LI Daoyang WU Qingfan FAN Xuefeng WANG Dajiang LI Qiang |
| author_facet | LIU Xinhe LI Daoyang WU Qingfan FAN Xuefeng WANG Dajiang LI Qiang |
| author_sort | LIU Xinhe |
| collection | DOAJ |
| description | When the onshore accurate current (AC) grid connected to the offshore wind power voltage source converter-based high voltage direct current (VSC-HVDC) transmission system fails,the surplus power continuously output by the wind farm causes DC overvoltage. The most effective way to solve the surplus power is to use the energy dissipation device to discharge the surplus power. A centralized DC energy dissipation device scheme based on half-bridge sub-modules is proposed to solve the problems of large switching power shock when power devices directly connected in series,difficulty in switching devices at the same time and high cost of distributed DC energy dissipation device. The parameter design method and control strategy of the proposed topology are studied. The solution can overcome the technical difficulties and risks of direct series connection of large-scale power devices,and can gradually reduce the resistance voltage change rate by switching sub-modules,thereby reducing the impact of power discharge on the DC system and the difficulty of manufacturing unloading resistors. Compared with the distributed DC energy dissipation device,the proposed scheme only uses the centralized resistance and omits the bleeder branch in the sub-modules,which greatly reduces the equipment cost. The fault ride-through simulation of the offshore wind power VSC-HVDC transmission system is carried out on the PSCAD platform. And the results show that the proposed centralized DC energy dissipation device topology and control scheme have good performance. |
| first_indexed | 2024-04-12T18:20:17Z |
| format | Article |
| id | doaj.art-f727fcaebb0245e5a6601c76dcd7a9db |
| institution | Directory Open Access Journal |
| issn | 2096-3203 |
| language | zho |
| last_indexed | 2024-04-12T18:20:17Z |
| publishDate | 2022-09-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj.art-f727fcaebb0245e5a6601c76dcd7a9db2022-12-22T03:21:29ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032022-09-01415505710.12158/j.2096-3203.2022.05.006Energy dissipation device based on half-bridge sub-modulesLIU Xinhe0LI Daoyang1WU Qingfan2FAN Xuefeng3WANG Dajiang4LI Qiang5XJ Group Co., Ltd., Xuchang 461000, ChinaXJ Group Co., Ltd., Xuchang 461000, ChinaXJ Group Co., Ltd., Xuchang 461000, ChinaXJ Group Co., Ltd., Xuchang 461000, ChinaState Grid Jiangsu Electric Power Co., Ltd. Research Institute, Nanjing 211103, ChinaState Grid Jiangsu Electric Power Co., Ltd. Research Institute, Nanjing 211103, ChinaWhen the onshore accurate current (AC) grid connected to the offshore wind power voltage source converter-based high voltage direct current (VSC-HVDC) transmission system fails,the surplus power continuously output by the wind farm causes DC overvoltage. The most effective way to solve the surplus power is to use the energy dissipation device to discharge the surplus power. A centralized DC energy dissipation device scheme based on half-bridge sub-modules is proposed to solve the problems of large switching power shock when power devices directly connected in series,difficulty in switching devices at the same time and high cost of distributed DC energy dissipation device. The parameter design method and control strategy of the proposed topology are studied. The solution can overcome the technical difficulties and risks of direct series connection of large-scale power devices,and can gradually reduce the resistance voltage change rate by switching sub-modules,thereby reducing the impact of power discharge on the DC system and the difficulty of manufacturing unloading resistors. Compared with the distributed DC energy dissipation device,the proposed scheme only uses the centralized resistance and omits the bleeder branch in the sub-modules,which greatly reduces the equipment cost. The fault ride-through simulation of the offshore wind power VSC-HVDC transmission system is carried out on the PSCAD platform. And the results show that the proposed centralized DC energy dissipation device topology and control scheme have good performance.https://www.epet-info.com/dlgcjs/article/html/220324376offshore wind powervoltage source converter-based high voltage direct current (vsc-hvdc) transmissiondirect current (dc) energy dissipation devicefault ride-throughoffshore converter stationhalf-bridge sub-module |
| spellingShingle | LIU Xinhe LI Daoyang WU Qingfan FAN Xuefeng WANG Dajiang LI Qiang Energy dissipation device based on half-bridge sub-modules 电力工程技术 offshore wind power voltage source converter-based high voltage direct current (vsc-hvdc) transmission direct current (dc) energy dissipation device fault ride-through offshore converter station half-bridge sub-module |
| title | Energy dissipation device based on half-bridge sub-modules |
| title_full | Energy dissipation device based on half-bridge sub-modules |
| title_fullStr | Energy dissipation device based on half-bridge sub-modules |
| title_full_unstemmed | Energy dissipation device based on half-bridge sub-modules |
| title_short | Energy dissipation device based on half-bridge sub-modules |
| title_sort | energy dissipation device based on half bridge sub modules |
| topic | offshore wind power voltage source converter-based high voltage direct current (vsc-hvdc) transmission direct current (dc) energy dissipation device fault ride-through offshore converter station half-bridge sub-module |
| url | https://www.epet-info.com/dlgcjs/article/html/220324376 |
| work_keys_str_mv | AT liuxinhe energydissipationdevicebasedonhalfbridgesubmodules AT lidaoyang energydissipationdevicebasedonhalfbridgesubmodules AT wuqingfan energydissipationdevicebasedonhalfbridgesubmodules AT fanxuefeng energydissipationdevicebasedonhalfbridgesubmodules AT wangdajiang energydissipationdevicebasedonhalfbridgesubmodules AT liqiang energydissipationdevicebasedonhalfbridgesubmodules |