A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure
Based on the influence of the receiving-end grid structure and the grounding electrode location on DC bias current, this paper analyzes the DC bias current (DCBC) level of the converter station and the adjacent AC substation in the typical connection structure under different connection modes of the...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
State Grid Energy Research Institute
2021-07-01
|
| Series: | Zhongguo dianli |
| Subjects: | |
| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201904098 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850053495602806784 |
|---|---|
| author | Lianguang LIU Chenglian MA |
| author_facet | Lianguang LIU Chenglian MA |
| author_sort | Lianguang LIU |
| collection | DOAJ |
| description | Based on the influence of the receiving-end grid structure and the grounding electrode location on DC bias current, this paper analyzes the DC bias current (DCBC) level of the converter station and the adjacent AC substation in the typical connection structure under different connection modes of the AC substations. The factors affecting the DCBC value of converter and AC transformers are analyzed, and the influence mechanism of the grounding electrode location and the receiving-end grid structure on the transformer DCBC value is expounded. Considering the structure of receiving-end grid and the location selection of grounding electrode, a DCBC value reduction method for converter and AC transformers is proposed. The measures to suppress the DC bias current can be analyzed from the aspects of system operation mode selection, grounding electrode location selection, power grid structure planning and designing, etc. This paper proposes to prevent the bias current of the converter and AC transformer during the planning and designing stage. |
| format | Article |
| id | doaj-art-85d3df582a2e4fe38a91de1fd16b80ad |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2021-07-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-85d3df582a2e4fe38a91de1fd16b80ad2025-08-20T02:52:31ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492021-07-0154710010810.11930/j.issn.1004-9649.201904098zgdl-54-4-liulianguangA DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid StructureLianguang LIU0Chenglian MA1State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, ChinaBased on the influence of the receiving-end grid structure and the grounding electrode location on DC bias current, this paper analyzes the DC bias current (DCBC) level of the converter station and the adjacent AC substation in the typical connection structure under different connection modes of the AC substations. The factors affecting the DCBC value of converter and AC transformers are analyzed, and the influence mechanism of the grounding electrode location and the receiving-end grid structure on the transformer DCBC value is expounded. Considering the structure of receiving-end grid and the location selection of grounding electrode, a DCBC value reduction method for converter and AC transformers is proposed. The measures to suppress the DC bias current can be analyzed from the aspects of system operation mode selection, grounding electrode location selection, power grid structure planning and designing, etc. This paper proposes to prevent the bias current of the converter and AC transformer during the planning and designing stage.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201904098uhvdcdc grounding electrodedc bias current (dcbc)receiving-end gridgrid structuregrounding electrode location |
| spellingShingle | Lianguang LIU Chenglian MA A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure Zhongguo dianli uhvdc dc grounding electrode dc bias current (dcbc) receiving-end grid grid structure grounding electrode location |
| title | A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure |
| title_full | A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure |
| title_fullStr | A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure |
| title_full_unstemmed | A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure |
| title_short | A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure |
| title_sort | dc bias current reducing method considering grounding electrode location and receiving end grid structure |
| topic | uhvdc dc grounding electrode dc bias current (dcbc) receiving-end grid grid structure grounding electrode location |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201904098 |
| work_keys_str_mv | AT lianguangliu adcbiascurrentreducingmethodconsideringgroundingelectrodelocationandreceivingendgridstructure AT chenglianma adcbiascurrentreducingmethodconsideringgroundingelectrodelocationandreceivingendgridstructure AT lianguangliu dcbiascurrentreducingmethodconsideringgroundingelectrodelocationandreceivingendgridstructure AT chenglianma dcbiascurrentreducingmethodconsideringgroundingelectrodelocationandreceivingendgridstructure |