Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency Stability
For the asynchronous interconnection system, the inertia of sending-end power grid drops sharply. Because of the severe high frequency problems caused by bipolar blocking of a HVDC transmission line, the traditional generation shedding strategy for dealing with the high frequency problems has some r...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
State Grid Energy Research Institute
2021-05-01
|
| Series: | Zhongguo dianli |
| Subjects: | |
| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202004133 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850051665118363648 |
|---|---|
| author | Jing GOU Fang LIU Li KUANG Yunche SU Ao LI Yunfeng WEN |
| author_facet | Jing GOU Fang LIU Li KUANG Yunche SU Ao LI Yunfeng WEN |
| author_sort | Jing GOU |
| collection | DOAJ |
| description | For the asynchronous interconnection system, the inertia of sending-end power grid drops sharply. Because of the severe high frequency problems caused by bipolar blocking of a HVDC transmission line, the traditional generation shedding strategy for dealing with the high frequency problems has some risks such as inaccurate shedding capacity (i.e. over- shedding or under-shedding) and lack of the rotational inertia after shedding. In order to solve the inadequacy of existing generation shedding schemes, we propose a generation shedding capacity optimization model for the sending-end grid with multi-DC asynchronous outfeeds considering the stability of system frequencies. The model comprehensively considers a variety of constraints, such as the frequency constraints, network power flow constraints, reserve constraints, and the constraints of generator-tripping capacity. By taking account of the adjustment performance and geographical distribution differences of various units in the sending-end grid, the TOPSIS method and the Superiority Chart are used to obtain the penalty factors of various units, and the optimal generation shedding scheme of the sending-end grid is determined for the bipolar blocking fault of a large-capacity HVDC transmission line with the goal to minimize the comprehensive cost of generator tripping. An improved IEEE RTS-79 test system is taken for case study, which has verified the effectiveness and the frequency adaptability of the proposed model. |
| format | Article |
| id | doaj-art-9d8fa50200834ac0bf13ab1094bd759a |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2021-05-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-9d8fa50200834ac0bf13ab1094bd759a2025-08-20T02:53:03ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492021-05-0154510111110.11930/j.issn.1004-9649.202004133zgdl-53-12Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency StabilityJing GOU0Fang LIU1Li KUANG2Yunche SU3Ao LI4Yunfeng WEN5State Grid Sichuan Power Economic Research Institute, Chengdu 610041, ChinaState Grid Sichuan Power Economic Research Institute, Chengdu 610041, ChinaSchool of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaState Grid Sichuan Power Economic Research Institute, Chengdu 610041, ChinaState Grid Sichuan Power Economic Research Institute, Chengdu 610041, ChinaSchool of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaFor the asynchronous interconnection system, the inertia of sending-end power grid drops sharply. Because of the severe high frequency problems caused by bipolar blocking of a HVDC transmission line, the traditional generation shedding strategy for dealing with the high frequency problems has some risks such as inaccurate shedding capacity (i.e. over- shedding or under-shedding) and lack of the rotational inertia after shedding. In order to solve the inadequacy of existing generation shedding schemes, we propose a generation shedding capacity optimization model for the sending-end grid with multi-DC asynchronous outfeeds considering the stability of system frequencies. The model comprehensively considers a variety of constraints, such as the frequency constraints, network power flow constraints, reserve constraints, and the constraints of generator-tripping capacity. By taking account of the adjustment performance and geographical distribution differences of various units in the sending-end grid, the TOPSIS method and the Superiority Chart are used to obtain the penalty factors of various units, and the optimal generation shedding scheme of the sending-end grid is determined for the bipolar blocking fault of a large-capacity HVDC transmission line with the goal to minimize the comprehensive cost of generator tripping. An improved IEEE RTS-79 test system is taken for case study, which has verified the effectiveness and the frequency adaptability of the proposed model.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202004133asynchronous interconnectionsending-end power gridgeneration sheddinginertiadc transmissionfrequency stability |
| spellingShingle | Jing GOU Fang LIU Li KUANG Yunche SU Ao LI Yunfeng WEN Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency Stability Zhongguo dianli asynchronous interconnection sending-end power grid generation shedding inertia dc transmission frequency stability |
| title | Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency Stability |
| title_full | Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency Stability |
| title_fullStr | Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency Stability |
| title_full_unstemmed | Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency Stability |
| title_short | Generation Shedding Capacity Optimization of Sending-End Power Grids with Multi-DC Asynchronous Outfeeds Considering Frequency Stability |
| title_sort | generation shedding capacity optimization of sending end power grids with multi dc asynchronous outfeeds considering frequency stability |
| topic | asynchronous interconnection sending-end power grid generation shedding inertia dc transmission frequency stability |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202004133 |
| work_keys_str_mv | AT jinggou generationsheddingcapacityoptimizationofsendingendpowergridswithmultidcasynchronousoutfeedsconsideringfrequencystability AT fangliu generationsheddingcapacityoptimizationofsendingendpowergridswithmultidcasynchronousoutfeedsconsideringfrequencystability AT likuang generationsheddingcapacityoptimizationofsendingendpowergridswithmultidcasynchronousoutfeedsconsideringfrequencystability AT yunchesu generationsheddingcapacityoptimizationofsendingendpowergridswithmultidcasynchronousoutfeedsconsideringfrequencystability AT aoli generationsheddingcapacityoptimizationofsendingendpowergridswithmultidcasynchronousoutfeedsconsideringfrequencystability AT yunfengwen generationsheddingcapacityoptimizationofsendingendpowergridswithmultidcasynchronousoutfeedsconsideringfrequencystability |